SPORTS TRAINING AND SAFETY DEVICE

PRIORITY CLAIM

[0001] This application claims priority to U.S. Provisional Patent Application Serial No. 63/053,704, filed on July 19, 2020, the entire contents of which are incorporated herein by reference and relied upon.

FIELD OF THE INVENTION

[0002] The present disclosure provides tether devices for safely training a player (“user”) to play the sport with his/her eyes and head up, for example without directing the user’s eyes towards the playing surface.

BACKGROUND

[0003] While training or playing sports, many players (especially younger or newer players) tend to focus on the playing surface immediately in front of their feet. This is especially true while practicing or playing sports that require manipulating a ball or puck with one’s feet or a stick, such as hockey or lacrosse. But limiting one’s focus to the playing surface immediately in front of one’s feet limits the player’s view, causing the player to frequently miss opportunities to pass the ball or puck to a teammate downfield, and even creating dangerous risks of a serious head or neck injury.

[0004] There is a lack of safe training devices that provide tactile feedback to the player reminding him or her to keep his or her chin extended away from the chest in order to maintain focus on a wide portion of the playing surface. One commercially available example named the “Heads Up Trainer” physically blocks vision using a bulky shelf-like protrusion worn on the player’s chest. However, limiting the player’s line of sight introduces safety hazards such as tripping risks that endanger both the player and his/her teammates and opponents.

[0005] There remains a need for safe training devices that provide consistent and tactile feedback reminding the user to keep his/her head up during game play.

SUMMARY

[0006] The present disclosure provides tether devices for safely training a player (“user”) to play the sport without directing the user’s eyes towards the playing surface. [0007] In one embodiment, the present disclosure provides a safety training device comprising: a helmet tether portion configured to releasably mate with a sports helmet; and a clothing tether portion configured to releasably mate with an article of clothing.

[0008] In another embodiment, the present disclosure provides a safety training device comprising: a helmet tether portion configured to releasably mate with a sports helmet, the helmet tether portion comprising: a first length of material having a first end and a second end opposite the first end, a helmet clamp disposed at the first end and configured to releasably mate with a helmet, and a helmet tether clasp disposed at the second end; and a clothing tether portion configured to releasably mate with an article of clothing, the clothing tether portion comprising: a second length of material having a first end and a second end opposite the first end, a clothing clamp disposed at the first end and configured to releasably mate with an article of clothing, and a clothing tether clasp disposed at the second end and configured to releasably mate with the helmet tether clasp.

[0009] In still other embodiments, the present disclosure provides a safety training device comprising: a helmet tether portion configured to releasably mate with a sports helmet, the helmet tether portion comprising: a first length of material having a first end and a second end opposite the first end, a helmet tether loop disposed at the first end, and a helmet tether clasp disposed at the second end; and a clothing tether portion configured to releasably mate with an article of clothing, the clothing tether portion comprising: a second length of material having a first end and a second end opposite the first end, a clothing clamp disposed at the first end and configured to releasably mate with an article of clothing, and a clothing tether clasp disposed at the second end and configured to releasably mate with the helmet tether clasp.

[0010] In still other embodiments, the present disclosure provides a safety training device having a first end and a second end opposite the first end and comprising: a helmet tether loop disposed at the first end; and a clothing clamp disposed at the second end and configured to releasably mate with an article of clothing.

[0011] In still other embodiments, the present disclosure provides a method of training a player to avoid looking at a portion of a playing surface immediately in front of the player’s feet, the method comprising: providing a safety training device as disclosed herein; mating one end of the safety training device to a helmet atop the player’s head; and mating the opposite end of the safety training device to an article of clothing worn by the player. [0012] These and other embodiments are described in greater detail herein with reference to the Figures.

BRIEF DESCRIPTION OF THE FIGURES

[0013] FIG. 1 shows a perspective view of a tether device consistent with one embodiment of the present disclosure.

[0014] FIG. 2 shows a perspective view of the tether device of FIG. 1 in a detached configuration.

[0015] FIG. 3 shows a perspective view of the tether device of FIGS. 1-2 in use with a hockey helmet and a sports jersey.

[0016] FIG. 4 shows a perspective view of the tether device of FIGS. 1 -2 in use after an extension of the user’s neck beyond a predetermined threshold.

[0017] FIG. 5 shows a perspective view of a tether device consistent with another embodiment of the present disclosure.

[0018] FIG. 6 shows a perspective view of the tether device of FIG. 5 in a detached configuration.

[0019] FIG. 7A shows a perspective view of the tether device of FIGS. 5-6 in use with a hockey helmet and a sports jersey.

[0020] FIG. 7B shows a perspective view of a tether device of FIGS. 5-6 in use with a hockey helmet and a sports jersey consistent with another embodiment of the present disclosure.

[0021] FIG. 8 shows a perspective view of the tether device of FIGS. 5-6 in use after an extension of the user’s neck beyond a predetermined threshold.

[0022] FIG. 9 shows a perspective view of a tether device consistent with another embodiment of the present disclosure.

[0023] FIG. 10A shows a perspective view of the tether device of FIG. 9 in use with a hockey helmet and a sports jersey.

[0024] FIG. 10B shows a perspective view of a tether device of FIG. 9 in use with a hockey helmet and a sports jersey consistent with another embodiment of the present disclosure.

[0025] FIG. 11 shows a perspective view of the tether device of FIGS. 9-10 in use after an extension of the user’s neck beyond a predetermined threshold. [0026] FIG. 12 shows a perspective view of a tether device consistent with another embodiment of the present disclosure.

[0027] FIG. 13 shows a perspective view of the tether device of FIG. 12 in a detached configuration.

[0028] FIG. 14A shows a perspective view of the tether device of FIGS. 12-13 in use with a hockey helmet and a sports jersey.

[0029] FIG. 14B shows a perspective view of a tether device of FIGS. 12-13 in use with a hockey helmet and a sports jersey consistent with another embodiment of the present disclosure.

[0030] FIG. 15 shows a perspective view of the tether device of FIGS. 12-13 in use after an extension of the user’s neck beyond a predetermined threshold.

[0031] FIG. 16 shows a perspective view of a tether device consistent with another embodiment of the present disclosure.

[0032] FIG. 17A shows a perspective view of the tether device of FIG. 16 in use with a hockey helmet and a sports jersey.

[0033] FIG. 17B shows a perspective view of a tether device of FIG. 16 in use with a hockey helmet and a sports jersey consistent with another embodiment of the present disclosure.

[0034] FIG. 18 shows a perspective view of the tether device of FIG. 16 in use after an extension of the user’s neck beyond a predetermined threshold.

[0035] FIG. 19 shows a perspective view of a tether device consistent with another embodiment of the present disclosure.

[0036] FIG. 20 shows a perspective representative view of a system for monitoring the status of a tether device associated with a user.

[0037] While specific embodiments are illustrated in the figures, with the understanding that the disclosure is intended to be illustrative, these embodiments are not intended to limit the invention described and illustrated herein.

DETAILED DESCRIPTION

[0038] Generally, the present disclosure provides tether devices for safely training a player (“user”) to play the sport without directing the user’s eyes towards the playing surface. The devices are suitable for use for any application where the user wears a hat or a helmet, and an article of clothing such as a sports jersey or a shirt. For example and without limitation, the devices disclosed herein are suitable for use while playing or practicing hockey, lacrosse, football, baseball, softball, cycling, horseback riding, skiing, snowboarding, skateboarding, motorcycling, motocross, car racing, or wrestling.

[0039] Referring generally to FIGS. 1-4, devices 10 of the present disclosure comprise a helmet tether portion 100 and a clothing tether portion 200. The helmet tether portion 100 includes a length of material 120 linking a helmet clamp 110 and a helmet tether clasp 130.

[0040] The helmet clamp 110 is configured to mate (e.g., releasably mate) to a helmet FI, such as at the helmet base FIB. In some embodiments, such as those shown in FIGS. 1-4, the helmet clamp 110 includes two opposing helmet clamp jaws 110a, 110b that are forced towards each other (e.g., by a spring force) to latch onto the outside face of the helmet base FIB and the inside face of the helmet base FIB, respectively. In other embodiments, the helmet clamp 110 comprises, consists essentially of, or consists of a snap fitting that mates (e.g., releasably mates) with a snap fitting associated with the helmet FI. In other embodiments, the helmet clamp 110 comprises, consists essentially of, or consists of a magnet that mates (e.g., magnetically mates) with a magnet associated with the helmet FI. In still other embodiments, the helmet clamp 110 comprises, consists essentially of, or consists of one half of a hook-and- loop or similar friction-based material that mates (e.g., releasably mates) with a complementary half of the hook-and-loop or similar friction-based material associated with (e.g., stitched to) the helmet FI. The helmet clamp 110 is associated with the length of material 120 by any suitable means; for example in the embodiments shown in FIGS. 1-4, the helmet clamp 110 is attached to the first end of the length of material 120 by a loop 122 formed in the first end of the length of material 120, for example by stitches 124.

[0041] The clothing tether portion 200 includes a length of material 220 linking a clothing clamp 210 and a clothing tether clasp 230.

[0042] The clothing clamp 210 is configured to mate (e.g., releasably mate) to an article of clothing J, such as at the collar JC, or to equipment worn at or near the nape of the neck, such as shoulder pads, a neck guard, or similar. In some embodiments, such as those shown in FIGS. 1 -4, the clothing clamp 210 includes two opposing clothing clamp jaws 210a, 210b that are forced towards each other (e.g., by a spring force) to latch onto the outside face of the article of clothing J and the inside face of the article of clothing J, respectively. In other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of a snap fitting that mates (e.g., releasably mates) with a snap fitting associated with the article of clothing J. In other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of a magnet that mates (e.g., magnetically mates) with a magnet associated with the article of clothing J. In still other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of one half of a hook-and-loop or similar friction-based material that mates (e.g., releasably mates) with a complementary half of the hook-and-loop or similar friction-based material associated with (e.g., stitched to) the article of clothing J. The clothing clamp 210 is associated with the length of material 220 by any suitable means; for example in the embodiments shown in FIGS. 1-4, the clothing clamp 210 is attached to the first end of the length of material 220 by a loop 222 formed in the first end of the length of material 220, for example by stitches 224.

[0043] The helmet tether clasp 130 may be one half of any suitable clasp mechanism 300 that enables the helmet tether portion 100 to mate (e.g., releasably mate) with the clothing tether portion 200. In some embodiments, such as those shown in FIGS. 1-4, the clasp mechanism 300 is a slide buckle including a clothing tether clasp 230 and a helmet tether clasp 130. Although the embodiment shown in FIGS. 1 -4 illustrates the helmet tether clasp 130 as being a female slide buckle component and the clothing tether clasp 230 as being a male slide buckle component, in other embodiments the helmet tether clasp 130 is a male slide buckle component and the clothing tether clasp 230 is a female slide component. In other embodiments, the clasp mechanism 300 is a breakaway pop barrel-type closure; in such embodiments the helmet tether clasp 130 includes one half of the breakaway pop barrel closure (e.g., the male half), while the clothing tether clasp 230 includes the other, complementary half of the breakaway pop barrel closure (e.g., the female half). In other embodiments, the clasp mechanism 300 is a magnetic closure; in such embodiments the helmet tether clasp 130 includes one or more magnets, while the clothing tether clasp 230 includes one or more magnets arranged such that the magnetic pole(s) complement (e.g., attract) the magnetic pole(s) of the helmet tether clasp 130.

[0044] The helmet tether clasp 130 is associated with the length of material 120 by any suitable means; for example in the embodiments shown in FIGS. 1-4, the helmet tether clasp 130 is attached to the second end of the length of material 120 by a loop 126 formed in the second end of the length of material 120, for example by stitches 128.

[0045] The clothing tether clasp 230 is associated with the length of material 220 by any suitable means; for example in the embodiments shown in FIGS. 1-4, the clothing tether clasp 230 is attached to the second end of the length of material 220 by an adjustment loop 226 formed in the second end of the length of material 220, for example by weaving the length of material 220 through the rungs of an adjustment buckle 232 portion of the clothing tether clasp 230. In this embodiment, the operable length L of the device 10 is adjustable by advancing more or less of the length of material 220 (e.g., adjustment loop 226) through the adjustment buckle 232.

[0046] The length of material 120 of the helmet tether portion 100 may comprise, consist essentially of, or consist of any suitable material. In some embodiments, the length of material 120 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 120 is resilient.

[0047] The length of material 220 of the clothing tether portion 200 may comprise, consist essentially of, or consist of any suitable material. In some embodiments, the length of material 220 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 220 is resilient.

[0048] In operation (FIGS. 3-4), the helmet tether portion 100 is attached to the helmet H by helmet clamp 110, preferably near or colinear with the center line CL of the helmet H. The clothing tether portion 200 is attached to the clothing J by clothing clamp 210, preferably colinear with the center line CL. Before or after attachment to the helmet and/or clothing, the helmet tether portion 100 is mated with the clothing tether portion 200 by forming clasp 300. If the operable length L is adjustable, the operable length L may be adjusted such that the device 10 is taut when the user’s chin is separated from his/her chest (e.g., when the user is in a ready- to-play stance with his/her eyes focused in the distance rather than on the playing surface immediately in front of the user). In this configuration, the device 10 resists (e.g., limits or prevents) the user from dropping his or her chin towards his/her chest, for example to look at the playing surface immediately in front of the user (e.g., when N > N _e ). The user feels a tactile “tug” when attempting to drop his/her chin, reminding the user not to focus on the playing surface immediately in front of his/her feet.

[0049] In some embodiments, the clasp 300 is configured to uncouple (e.g., release) when a tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the helmet tether portion 100 and the clothing tether portion 200 prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. [0050] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[0051] In other embodiments, the clasp 300 is configured to not uncouple (e.g., release) when a tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ), but instead the helmet tether portion 100 is configured to separate from the helmet H when the tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the helmet tether portion 100 and the helmet H prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. In embodiments wherein the helmet clamp 110 includes two opposing clamp jaws 110a, 110b, the threshold force may be determined by the inclusion of a pad having a desirable coefficient of friction on the inside of the clamp jaw 110a that mates with the outside surface of the helmet H, and/or on the inside of the clamp jaw 110b that mates with the inside surface of the helmet H. In embodiments wherein the helmet clamp 110 is a magnet, the threshold force may be determined by the type of magnets employed (e.g., use of rare earth magnets will enable a higher threshold force than use of ferrite magnets), and/or by the surface area of interaction between the magnet of the helmet tether 110 and the magnet associated with the helmet H (e.g., use of magnets providing a greater surface area of interaction enables a higher threshold force than use of magnets providing a lower surface area of interaction). In embodiments wherein the helmet clamp 110 is one half of a snap fitting, the threshold force may be determined by the use of a snap stud and a snap socket that provides a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation). In embodiments wherein the helmet clamp 110 is one half of a hook-and-loop or similar friction-based material, the threshold force may be determined by the use of hook-and-loop or similar friction-based material that has a desirable coefficient of friction (e.g., use of hook-and-loop or similar friction-based material having a relatively high coefficient of friction enables a higher threshold force than use of hook- and-loop or similar friction-based material having a relatively low coefficient of friction), and/or by the surface area of interaction between the hook-and-loop or similar friction-based material of the helmet tether 110 and the hook-and-loop or similar friction-based material associated with the helmet H (e.g., use of material providing a greater surface area of interaction enables a higher threshold force than use of material providing a lower surface area of interaction).

[0052] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[0053] In other embodiments, the clasp 300 is configured to not uncouple (e.g., release) when a tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ), but instead the clothing tether portion 200 is configured to separate from the clothing J when the tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the clothing tether portion 200 and the clothing J prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. In embodiments wherein the clothing clamp 210 includes two opposing clamp jaws 210a,210b, the threshold force may be determined by the inclusion of a pad having a desirable coefficient of friction on the inside of the clamp jaw 210a that mates with the outside surface of the clothing J, and/or on the inside of the clamp jaw 210b that mates with the inside surface of the clothing J. In embodiments wherein the clothing clamp 210 is a magnet, the threshold force may be determined by the type of magnets employed (e.g., use of rare earth magnets will enable a higher threshold force than use of ferrite magnets), and/or by the surface area of interaction between the magnet of the clothing clamp 210 and the magnet associated with the clothing J (e.g., use of magnets providing a greater surface area of interaction enables a higher threshold force than use of magnets providing a lower surface area of interaction). In embodiments wherein the clothing clamp 210 is one half of a snap fitting, the threshold force may be determined by the use of a snap stud and a snap socket that provides a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation). In embodiments wherein the clothing clamp 210 is one half of a hook-and-loop or similar friction-based material, the threshold force may be determined by the use of hook-and-loop or similar friction-based material that has a desirable coefficient of friction (e.g., use of hook-and-loop or similar friction-based material having a relatively high coefficient of friction enables a higher threshold force than use of hook- and-loop or similar friction-based material having a relatively low coefficient of friction), and/or by the surface area of interaction between the hook-and-loop or similar friction-based material of the clothing clamp 210 and the hook-and-loop or similar friction-based material associated with the clothing J (e.g., use of material providing a greater surface area of interaction enables a higher threshold force than use of material providing a lower surface area of interaction).

[0054] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[0055] In some embodiments, the clasp 300 provides a visual indicator (e.g., a predetermined color) when the helmet tether clasp 130 and the clothing tether clasp 230 are properly mated.

[0056] Referring now to FIGS. 5-8, devices 20 consistent with another embodiment of the present disclosure generally comprise a helmet tether portion 400 releasably mated with a clothing tether portion 500.

[0057] The helmet tether portion 400 includes a helmet tether loop 410 configured to loop through at least a portion of the helmet H, and a helmet tether clasp 430. The clothing tether portion 500 includes a length of material 520, a clothing tether clasp 530 at a first end of the length of material 520, and a clothing clamp 510 at a second, opposite end of the length of material 520.

[0058] The clothing clamp 510 is configured to mate (e.g., releasably mate) to an article of clothing J, such as at the collar JC. In some embodiments, such as those shown in FIGS. 5-8, the clothing clamp 510 includes two opposing clothing clamp jaws 510a, 510b that are forced towards each other (e.g., by a spring force) to latch onto the outside face of the article of clothing J and the inside face of the article of clothing J, respectively. In other embodiments, the clothing clamp 510 comprises, consists essentially of, or consists of a snap fitting that mates (e.g., releasably mates) with a snap fitting associated with the article of clothing J. In other embodiments, the clothing clamp 510 comprises, consists essentially of, or consists of a magnet that mates (e.g., magnetically mates) with a magnet associated with the article of clothing J. In still other embodiments, the clothing clamp 510 comprises, consists essentially of, or consists of one half of a hook-and-loop or similar friction-based material that mates (e.g., releasably mates) with a complementary half of the hook-and-loop or similar friction-based material associated with (e.g., stitched to) the article of clothing J. The clothing clamp 510 is associated with the length of material 520 by any suitable means; for example in the embodiments shown in FIGS. 5-8, the clothing clamp 510 is attached to the first end of the length of material 520 by a knot.

[0059] The helmet tether loop 410 is configured to be looped around at least a portion of the helmet H. For example and without limitation, a hockey helmet includes many holes HH1 ,HH2 for reducing the weight of the helmet FI and for enabling user-generated heat to escape. In some embodiments, the helmet tether loop 410 may be attached to the helmet FI by passing the helmet tether clasp 430 through a first hole HH1 into the interior of the helmet FI, and then out through a second hole FHFH2. Alternatively, the helmet tether loop 410 may be attached to the helmet FI by feeding the helmet tether clasp 430 through a first hole FHFH1 from the interior of the helmet FI, and then back into the interior of the helmet FI through a second hole FHFH2 — in this alternative configuration, the slip knot 422 and the helmet tether clasp 430 will be oriented closer to the user’s neck N than shown in FIGS. 7A-8. The helmet tether loop 410 may be formed by passing the helmet tether clasp 410 through a slipknot 422 formed in the opposite end of the helmet tether length of material 420. In some embodiments, the first and second holes FHFH1 ,FHFH2 are ear holes EFH1 ,EFH2 of the helmet FI (see, e.g., FIG. 19).

[0060] The helmet tether clasp 430 may be one half of any suitable clasp mechanism 600 that enables the helmet tether portion 400 to mate (e.g., releasably mate) with the clothing tether portion 500. In some embodiments, such as those shown in FIGS. 5-8, the clasp mechanism 600 is a breakaway pop barrel-type clasp 600 including a clothing tether clasp 530 and a helmet tether clasp 430. Although the embodiment shown in FIGS. 5-8 illustrates the helmet tether clasp 430 as being a male breakaway 432 pop barrel-type clasp component and the clothing tether clasp 530 as being a female breakaway 532 pop barrel-type component, in other embodiments the helmet tether clasp 430 is a female breakaway pop barrel-type clasp component and the clothing tether clasp 530 is a male breakaway pop barrel-type clasp component. In other embodiments, the clasp mechanism 600 is a slide buckle closure; in such embodiments the helmet tether clasp 430 includes one half of the slide buckle closure (e.g., the male half), while the clothing tether clasp 530 includes the other, complementary half of the slide buckle closure (e.g., the female half). In other embodiments, the clasp mechanism 600 is a magnetic closure; in such embodiments the helmet tether clasp 430 includes one or more magnets, while the clothing tether clasp 530 includes one or more magnets arranged such that the magnetic pole(s) complement (e.g., attract) the magnetic pole(s) of the helmet tether clasp 430.

[0061] The helmet tether clasp 430 is associated with the length of material 420 by any suitable means; for example in the embodiments shown in FIGS. 5-8, the helmet tether clasp 430 is attached to the second end of the length of material 420 by a knot (not shown).

[0062] The clothing tether clasp 530 is associated with the length of material 520 by any suitable means; for example in the embodiments shown in FIGS. 5-8, the clothing tether clasp 530 is attached to the second end of the length of material 520 by knot (not shown).

[0063] The length of material 410,420 of the helmet tether portion 400 may comprise, consist essentially of, or consist of any suitable material. In some embodiments, the length of material 410,420 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 410,420 is resilient.

[0064] The length of material 520 of the clothing tether portion 500 may comprise, consist essentially of, or consist of any suitable material. In some embodiments, the length of material 520 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 520 is resilient.

[0065] In operation (FIGS. 7A-8), the helmet tether portion 400 is attached to the helmet FI by helmet tether loop 410, for example by passing the helmet tether loop 410 through a pair of holes HHI ,HI-12 in the helmet FI. The pair of holes FIFI1 ,FHFH2 should ideally be located equidistant from a center line CL of the helmet FI, and relatively close to the helmet base FIB for best results. The clothing tether portion 200 is attached to the clothing J by clothing clamp 510, preferably colinear with the center line CL. Before or after attachment to the helmet and/or clothing, the helmet tether portion 400 is mated with the clothing tether portion 500 by forming clasp 600. In this configuration, the device 10 resists (e.g., limits or prevents) the user from dropping his or her chin towards his/her chest, for example to look at the playing surface immediately in front of the user (e.g., when N > N _e ). The user feels a tactile “tug” when attempting to drop his/her chin, reminding the user not to focus on the playing surface immediately in front of his/her feet. As shown representatively in FIG. 7B, there may be some advantages in selecting a pair of holes FHFH1 ,FHFH2 that are relatively far apart from each other, For example, in such embodiments the tactile “tug” produced when the user lowers his or her chin may be supplemented by a small amount of pressure between the tether loop 410 and the back of the user’s head. This additional pressure may be more noticeable when a relatively longer portion of the tether loop 410 contacts the user’s head (e.g., FIG. 7B) compared to embodiments wherein a relatively shorter portion of the tether loop 410 contacts the user’s head (e.g., FIG. 7A). In some embodiments, the first and second holes HH1 ,HH2 are ear holes EH1 ,EH2 of the helmet FI (see, e.g., FIG. 19).

[0066] In some embodiments, the clasp 600 is configured to uncouple (e.g., release) when a tensile force applied between the helmet FI and the clothing J (e.g., between the helmet base FIB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the helmet tether portion 400 and the clothing tether portion 500 prevents compounding potential injury to the user’s neck N when a substantial force is received by the user.

[0067] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[0068] In other embodiments, the clasp 600 is configured to not uncouple (e.g., release) when a tensile force applied between the helmet FI and the clothing J (e.g., between the helmet base FIB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ), but instead the clothing tether portion 500 is configured to separate from the clothing J when the tensile force applied between the helmet FI and the clothing J (e.g., between the helmet base FIB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the clothing tether portion 500 and the clothing J prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. In embodiments wherein the clothing clamp 510 includes two opposing clamp jaws 510a, 510b, the threshold force may be determined by the inclusion of a pad having a desirable coefficient of friction on the inside of the clamp jaw 510a that mates with the outside surface of the clothing J, and/or on the inside of the clamp jaw 510b that mates with the inside surface of the clothing J. In embodiments wherein the clothing clamp 510 is a magnet, the threshold force may be determined by the type of magnets employed (e.g., use of rare earth magnets will enable a higher threshold force than use of ferrite magnets), and/or by the surface area of interaction between the magnet of the clothing tether 510 and the magnet associated with the clothing J (e.g., use of magnets providing a greater surface area of interaction enables a higher threshold force than use of magnets providing a lower surface area of interaction). In embodiments wherein the clothing clamp 510 is one half of a snap fitting, the threshold force may be determined by the use of a snap stud and a snap socket that provides a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation). In embodiments wherein the clothing clamp 510 is one half of a hook-and-loop or similar friction-based material, the threshold force may be determined by the use of hook-and-loop or similar friction-based material that has a desirable coefficient of friction (e.g., use of hook-and-loop or similar friction-based material having a relatively high coefficient of friction enables a higher threshold force than use of hook- and-loop or similar friction-based material having a relatively low coefficient of friction), and/or by the surface area of interaction between the hook-and-loop or similar friction-based material of the clothing tether 510 and the hook-and-loop or similar friction-based material associated with the clothing J (e.g., use of material providing a greater surface area of interaction enables a higher threshold force than use of material providing a lower surface area of interaction).

[0069] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[0070] In some embodiments, the clasp 600 provides a visual indicator (e.g., a predetermined color) when the helmet tether clasp 430 and the clothing tether clasp 530 are properly mated.

[0071] Referring generally to FIGS. 9-11 , devices 30 consistent with another embodiment of the present disclosure generally comprise a helmet tether loop 710, a clothing clamp 810, and an adjustable loop 826 disposed between the helmet tether loop 710 and the clothing clamp 810.

[0072] The clothing clamp 810 is configured to mate (e.g., releasably mate) to an article of clothing J, such as at the collar JC, and preferably at or near the center line CL of the user’s jersey J. In some embodiments, such as those shown in FIGS. 9-11 , the clothing clamp 810 includes two opposing clothing clamp jaws 810a, 810b that are forced towards each other (e.g., by a spring force) to latch onto the outside face of the article of clothing J and the inside face of the article of clothing J, respectively. In other embodiments, the clothing clamp 810 comprises, consists essentially of, or consists of a snap fitting that mates (e.g., releasably mates) with a snap fitting associated with the article of clothing J. In other embodiments, the clothing clamp 810 comprises, consists essentially of, or consists of a magnet that mates (e.g., magnetically mates) with a magnet associated with the article of clothing J. In still other embodiments, the clothing clamp 810 comprises, consists essentially of, or consists of one half of a hook-and-loop or similar friction-based material that mates (e.g., releasably mates) with a complementary half of the hook-and-loop or similar friction-based material associated with (e.g., stitched to) the article of clothing J. In some embodiments, the clothing clamp 810 is associated with the length of material 720 by any suitable means; for example in the embodiments shown in FIGS. 9-11 , the clothing clamp 810 is attached to the first end of the length of material 720 by loop 815 that is configured to allow the clothing clamp 810 to slide along the length of material 720.

[0073] The helmet tether loop 710 is configured to be looped around at least a portion of the helmet H. For example and without limitation, a hockey helmet includes many holes HH1 ,HH2 for reducing the weight of the helmet FI and for enabling user-generated heat to escape. In some embodiments, the helmet tether loop 710 may be attached to the helmet FI by passing the clothing clamp 810 end of the device 30 through a first hole HH1 into the interior of the helmet FI, and then out through a second hole FHFH2. Alternatively, the helmet tether loop 410 may be attached to the helmet FI by feeding the clothing clamp 810 end of the device 30 through a first hole FHFH1 from the interior of the helmet FI, and then back into the interior of the helmet FI through a second hole FHFH2 — in this alternative configuration, the slip knot 722 will be oriented closer to the user’s neck N than shown in FIGS. 10A-11 . The helmet tether loop 710 may be formed by passing the clothes clamp 810 through a slipknot 722 formed in the opposite end of the device 30. In some embodiments, the first and second holes FHFH1 ,FHFH2 are ear holes EFH1 ,EFH2 of the helmet FI (see, e.g., FIG. 19).

[0074] The device 30 further includes a length adjuster 830 disposed at one end of the length of material 720. The length adjuster 830 enables the operable length L of the device 30 to be adjusted. For example and without limitation, the length adjuster 830 may be a friction-based cord tensioner including two holes; the end of the length of material 720 is passed through the two holes to form an adjustment loop 826. In such embodiments, tension applied to the device 30 between the clothing clamp 810 and the helmet tether loop 710 induces friction between the length of material 720 and the cord tensioner 830. The operable length L of the device 30 does not substantially change under normal tension forces (e.g., tension forces not more than about 10 pounds, such as not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound). In some embodiments, the friction force between the length of material 720 and the cord tensioner 830 is overcome, and the operable length L of the device 30 increases rapidly, when the tension force exceeds a threshold force, for example at least about 1 pound, at least about 2 pounds, at least about 3 pounds, at least about 4 pounds, at least about 5 pounds, at least about 6 pounds, at least about 7 pounds, at least about 8 pounds, at least about 9 pounds, or at least about 10 pounds.

[0075] The length of material 710/720 may comprise, consist essentially of, or consist of any suitable material. In some embodiments, the length of material 710/720 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 710/720 is resilient.

[0076] In some embodiments, the length adjuster 830 is configured to not enable the operable length L of the device 30 to increase when a tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ), but instead the clothing clamp 810 is configured to separate from the clothing J when the tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the clothing tether portion 200 and the clothing J prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. In embodiments wherein the clothing clamp 810 includes two opposing clamp jaws 810a, 810b, the threshold force may be determined by the inclusion of a pad having a desirable coefficient of friction on the inside of the clamp jaw 810a that mates with the outside surface of the clothing J, and/or on the inside of the clamp jaw 810b that mates with the inside surface of the clothing J. In embodiments wherein the clothing clamp 810 is a magnet, the threshold force may be determined by the type of magnets employed (e.g., use of rare earth magnets will enable a higher threshold force than use of ferrite magnets), and/or by the surface area of interaction between the magnet of the clothing clamp 810 and the magnet associated with the clothing J (e.g., use of magnets providing a greater surface area of interaction enables a higher threshold force than use of magnets providing a lower surface area of interaction). In embodiments wherein the clothing clamp 810 is one half of a snap fitting, the threshold force may be determined by the use of a snap stud and a snap socket that provides a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation). In embodiments wherein the clothing clamp 810 is one half of a hook-and-loop or similar friction-based material, the threshold force may be determined by the use of hook-and-loop or similar friction-based material that has a desirable coefficient of friction (e.g., use of hook-and-loop or similar friction- based material having a relatively high coefficient of friction enables a higher threshold force than use of hook-and-loop or similar friction-based material having a relatively low coefficient of friction), and/or by the surface area of interaction between the hook-and-loop or similar friction- based material of the clothing clamp 810 and the hook-and-loop or similar friction-based material associated with the clothing J (e.g., use of material providing a greater surface area of interaction enables a higher threshold force than use of material providing a lower surface area of interaction).

[0077] As shown representatively in FIG. 10B, there may be some advantages in selecting a pair of holes HH1 ,HH2 that are relatively far apart from each other, For example, in such embodiments the tactile “tug” produced when the user lowers his or her chin may be supplemented by a small amount of pressure between the tether loop 710 and the back of the user’s head. This additional pressure may be more noticeable when a relatively longer portion of the tether loop 710 contacts the user’s head (e.g., FIG. 10B) compared to embodiments wherein a relatively shorter portion of the tether loop 710 contacts the user’s head (e.g., FIG.

10A). In some embodiments, the first and second holes HH1 ,HH2 are ear holes EH1 ,EH2 of the helmet FI (see, e.g., FIG. 19).

[0078] Referring to FIGS. 12-15, devices 10 consistent with other embodiments of the present disclosure comprise a helmet tether portion 100 and a clothing tether portion 200. The helmet tether portion 100 includes a length of material 120 linking a helmet snap 110 and a helmet tether clasp 130.

[0079] The helmet snap 110 is configured to mate (e.g., releasably mate) to a snap SN affixed to a helmet FI. In some embodiments, the snap SN is disposed near the helmet base FIB and preferably along a center line CL of the helmet FI. The helmet snap 110 is associated with the length of material 120 by any suitable means; for example in the embodiments shown in FIGS. 12-15, the helmet snap 110 is attached to the first end of the length of material 120 by first forming a hole in the length of material 120 and press fitting two mating halves of the helmet snap 110 through the hole in the length of material 120.

[0080] The clothing tether portion 200 includes a length of material 220 linking a clothing clamp 210 and a clothing tether clasp 230. [0081] The clothing clamp 210 is configured to mate (e.g., releasably mate) to an article of clothing J, such as at the collar JC, or to equipment worn at or near the nape of the neck, such as shoulder pads, a neck guard, or similar. In some embodiments, such as those shown in FIGS. 12-15, the clothing clamp 210 includes two opposing clothing clamp jaws 210a,210b that are forced towards each other (e.g., by a spring force) to latch onto the outside face of the article of clothing J and the inside face of the article of clothing J, respectively. In other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of a snap fitting that mates (e.g., releasably mates) with a snap fitting associated with the article of clothing J. In other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of a magnet that mates (e.g., magnetically mates) with a magnet associated with the article of clothing J. In still other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of one half of a hook-and-loop or similar friction-based material that mates (e.g., releasably mates) with a complementary half of the hook-and-loop or similar friction-based material associated with (e.g., stitched to) the article of clothing J. The clothing clamp 210 is associated with the length of material 220 by any suitable means; for example in the embodiments shown in FIGS. 12-15, the clothing clamp 210 is attached to the first end of the length of material 220 by a loop 222 formed in the first end of the length of material 220, for example by stitches 224.

[0082] The helmet tether clasp 130 may be one half of any suitable clasp mechanism 300 that enables the helmet tether portion 100 to mate (e.g., releasably mate) with the clothing tether portion 200. In some embodiments, such as those shown in FIGS. 12-15, the clasp mechanism 300 is a slide buckle including a clothing tether clasp 230 and a helmet tether clasp 130. Although the embodiment shown in FIGS. 12-15 illustrates the helmet tether clasp 130 as being a female slide buckle component and the clothing tether clasp 230 as being a male slide buckle component, in other embodiments the helmet tether clasp 130 is a male slide buckle component and the clothing tether clasp 230 is a female slide component. In other embodiments, the clasp mechanism 300 is a breakaway pop barrel-type closure; in such embodiments the helmet tether clasp 130 includes one half of the breakaway pop barrel closure (e.g., the male half), while the clothing tether clasp 230 includes the other, complementary half of the breakaway pop barrel closure (e.g., the female half). In other embodiments, the clasp mechanism 300 is a magnetic closure; in such embodiments the helmet tether clasp 130 includes one or more magnets, while the clothing tether clasp 230 includes one or more magnets arranged such that the magnetic pole(s) complement (e.g., attract) the magnetic pole(s) of the helmet tether clasp 130. [0083] The helmet tether clasp 130 is associated with the length of material 120 by any suitable means; for example in the embodiments shown in FIGS. 12-15, the helmet tether clasp 130 is attached to the second end of the length of material 120 by a loop 126 formed in the second end of the length of material 120, for example by stitches 128.

[0084] The clothing tether clasp 230 is associated with the length of material 220 by any suitable means; for example in the embodiments shown in FIGS. 12-15, the clothing tether clasp 230 is attached to the second end of the length of material 220 by an adjustment loop 226 formed in the second end of the length of material 220, for example by weaving the length of material 220 through the rungs of an adjustment buckle 232 portion of the clothing tether clasp 230. In this embodiment, the operable length L of the device 10 is adjustable by advancing more or less of the length of material 220 (e.g., adjustment loop 226) through the adjustment buckle 232.

[0085] The length of material 120 of the helmet tether portion 100 may comprise, consists essentially of, or consist of any suitable material. In some embodiments, the length of material 120 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 120 is resilient.

[0086] The length of material 220 of the clothing tether portion 200 may comprise, consist essentially of, or consist of any suitable material. In some embodiments, the length of material 220 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 220 is resilient.

[0087] In operation (FIGS. 14A-15), the helmet tether portion 100 is attached to the helmet FI by mating the helmet clamp 110 and a snap SN,SN',SN", preferably near or colinear with the center line CL of the helmet FI. The clothing tether portion 200 is attached to the clothing J (or to equipment worn about the shoulders) by clothing clamp 210, preferably colinear with the center line CL. Before or after attachment to the helmet and/or clothing, the helmet tether portion 100 is mated with the clothing tether portion 200 by forming clasp 300. If the operable length L is adjustable, the operable length L may be adjusted such that the device 10 is taut when the user’s chin is separated from his/her chest (e.g., when the user is in a ready-to-play stance with his/her eyes focused in the distance rather than on the playing surface immediately in front of the user). In this configuration, the device 10 resists (e.g., limits or prevents) the user from dropping his or her chin towards his/her chest, for example to look at the playing surface immediately in front of the user (e.g., when N > N _e ). The user feels a tactile “tug” when attempting to drop his/her chin, reminding the user not to focus on the playing surface immediately in front of his/her feet.

[0088] In some embodiments, the clasp 300 is configured to uncouple (e.g., release) when a tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the helmet tether portion 100 and the clothing tether portion 200 prevents compounding potential injury to the user’s neck N when a substantial force is received by the user.

[0089] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[0090] In other embodiments, the clasp 300 is configured to not uncouple (e.g., release) when a tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ), but instead the helmet tether portion 100 is configured to separate from the helmet H when the tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the helmet tether portion 100 and the helmet H prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. The threshold force may be determined by the use of a helmet snap 110 and a snap SN,SN',SN" that collectively provide a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation).

[0091] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[0092] In other embodiments, the clasp 300 is configured to not uncouple (e.g., release) when a tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ), but instead the clothing tether portion 200 is configured to separate from the clothing J when the tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the clothing tether portion 200 and the clothing J prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. In embodiments wherein the clothing clamp 210 includes two opposing clamp jaws 210a,210b, the threshold force may be determined by the inclusion of a pad having a desirable coefficient of friction on the inside of the clamp jaw 210a that mates with the outside surface of the clothing J, and/or on the inside of the clamp jaw 210b that mates with the inside surface of the clothing J. In embodiments wherein the clothing clamp 210 is a magnet, the threshold force may be determined by the type of magnets employed (e.g., use of rare earth magnets will enable a higher threshold force than use of ferrite magnets), and/or by the surface area of interaction between the magnet of the clothing clamp 210 and the magnet associated with the clothing J (e.g., use of magnets providing a greater surface area of interaction enables a higher threshold force than use of magnets providing a lower surface area of interaction). In embodiments wherein the clothing clamp 210 is one half of a snap fitting, the threshold force may be determined by the use of a snap stud and a snap socket that provides a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation). In embodiments wherein the clothing clamp 210 is one half of a hook-and-loop or similar friction-based material, the threshold force may be determined by the use of hook-and-loop or similar friction-based material that has a desirable coefficient of friction (e.g., use of hook-and-loop or similar friction-based material having a relatively high coefficient of friction enables a higher threshold force than use of hook- and-loop or similar friction-based material having a relatively low coefficient of friction), and/or by the surface area of interaction between the hook-and-loop or similar friction-based material of the clothing clamp 210 and the hook-and-loop or similar friction-based material associated with the clothing J (e.g., use of material providing a greater surface area of interaction enables a higher threshold force than use of material providing a lower surface area of interaction).

[0093] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[0094] In some embodiments, the clasp 300 provides a visual indicator (e.g., a predetermined color) when the helmet tether clasp 130 and the clothing tether clasp 230 are properly mated.

[0095] Referring now to FIGS. 16-18, devices 10 consistent with other embodiments of the present disclosure comprise a helmet tether portion 100 and a clothing tether portion 200. The helmet tether portion 100 includes a length of material 120 including a helmet snap 110; the clothing tether portion 200 includes a length of material 220 including a clothing clamp 210. A length adjuster 230 is disposed between the helmet tether portion 100 and the clothing tether portion 200.

[0096] The helmet snap 110 is configured to mate (e.g., releasably mate) to a snap SN affixed to a helmet H. In some embodiments, a snap SN,SN',SN" is disposed near the helmet base HB and preferably along a center line CL of the helmet H. The helmet snap 110 is associated with the length of material 120 by any suitable means; for example in the embodiments shown in FIGS. 16-18, the helmet snap 110 is attached to the first end of the length of material 120 by first forming a hole in the length of material 120 and press fitting two mating halves of the helmet snap 110 through the hole in the length of material 120.

[0097] The clothing clamp 210 is configured to mate (e.g., releasably mate) to an article of clothing J, such as at the collar JC, or to equipment worn at or near the nape of the neck, such as shoulder pads, a neck guard, or similar. In some embodiments, such as those shown in FIGS. 16-18, the clothing clamp 210 includes two opposing clothing clamp jaws 210a,210b that are forced towards each other (e.g., by a spring force) to latch onto the outside face of the article of clothing J and the inside face of the article of clothing J, respectively. In other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of a snap fitting that mates (e.g., releasably mates) with a snap fitting associated with the article of clothing J. In other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of a magnet that mates (e.g., magnetically mates) with a magnet associated with the article of clothing J. In still other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of one half of a hook-and-loop or similar friction-based material that mates (e.g., releasably mates) with a complementary half of the hook-and-loop or similar friction-based material associated with (e.g., stitched to) the article of clothing J. The clothing clamp 210 is associated with the length of material 220 by any suitable means; for example in the embodiments shown in FIGS. 16-18, the clothing clamp 210 is attached to the first end of the length of material 220 by a loop 222 formed in the first end of the length of material 220, for example by stitches 224.

[0098] The length adjuster 230 is associated with the length of material 220 by any suitable means; for example in the embodiments shown in FIGS. 16-18, the length adjuster 230 is attached to the second end of the length of material 220 by an adjustment loop 226 formed in the second end of the length of material 220, for example by weaving the length of material 220 through the rungs of an adjustment buckle 232 portion of the clothing tether clasp 230. In this embodiment, the operable length L of the device 10 is adjustable by advancing more or less of the length of material 220 (e.g., adjustment loop 226) through the adjustment buckle 232.

[0099] The length of material 120 of the helmet tether portion 100 may comprise, consists essentially of, or consist of any suitable material. In some embodiments, the length of material 120 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 120 is resilient.

[00100] The length of material 220 of the clothing tether portion 200 may comprise, consist essentially of, or consist of any suitable material. In some embodiments, the length of material 220 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 220 is resilient.

[00101] In operation (FIGS. 17A-18), the helmet tether portion 100 is attached to the helmet FI by mating the helmet snap 110 and the snap SN,SN',SN", preferably near or colinear with the center line CL of the helmet FI. The clothing tether portion 200 is attached to the clothing J (or to equipment worn about the shoulders) by clothing clamp 210, preferably colinear with the center line CL. If the operable length L is adjustable, the operable length L may be adjusted such that the device 10 is taut when the user’s chin is separated from his/her chest (e.g., when the user is in a ready-to-play stance with his/her eyes focused in the distance rather than on the playing surface immediately in front of the user). In this configuration, the device 10 resists (e.g., limits or prevents) the user from dropping his or her chin towards his/her chest, for example to look at the playing surface immediately in front of the user (e.g., when N > N _e ). The user feels a tactile “tug” when attempting to drop his/her chin, reminding the user not to focus on the playing surface immediately in front of his/her feet.

[00102] In other embodiments, the helmet tether portion 100 is configured to separate from the helmet FI when the tensile force applied between the helmet FI and the clothing J (e.g., between the helmet base FIB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the helmet tether portion 100 and the helmet H prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. The threshold force may be determined by the use of a helmet snap 110 and a snap SN,SN',SN" that collectively provide a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation).

[00103] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[00104] In other embodiments, the clothing tether portion 200 is configured to separate from the clothing J when the tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the clothing tether portion 200 and the clothing J prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. In embodiments wherein the clothing clamp 210 includes two opposing clamp jaws 210a,210b, the threshold force may be determined by the inclusion of a pad having a desirable coefficient of friction on the inside of the clamp jaw 210a that mates with the outside surface of the clothing J, and/or on the inside of the clamp jaw 210b that mates with the inside surface of the clothing J. In embodiments wherein the clothing clamp 210 is a magnet, the threshold force may be determined by the type of magnets employed (e.g., use of rare earth magnets will enable a higher threshold force than use of ferrite magnets), and/or by the surface area of interaction between the magnet of the clothing clamp 210 and the magnet associated with the clothing J (e.g., use of magnets providing a greater surface area of interaction enables a higher threshold force than use of magnets providing a lower surface area of interaction). In embodiments wherein the clothing clamp 210 is one half of a snap fitting, the threshold force may be determined by the use of a snap stud and a snap socket that provides a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation). In embodiments wherein the clothing clamp 210 is one half of a hook-and-loop or similar friction-based material, the threshold force may be determined by the use of hook-and-loop or similar friction-based material that has a desirable coefficient of friction (e.g., use of hook-and-loop or similar friction- based material having a relatively high coefficient of friction enables a higher threshold force than use of hook-and-loop or similar friction-based material having a relatively low coefficient of friction), and/or by the surface area of interaction between the hook-and-loop or similar friction- based material of the clothing clamp 210 and the hook-and-loop or similar friction-based material associated with the clothing J (e.g., use of material providing a greater surface area of interaction enables a higher threshold force than use of material providing a lower surface area of interaction).

[00105] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[00106] Referring now to FIG. 19, devices 10 consistent with other embodiments of the present disclosure comprise a helmet tether portion 100 and a clothing tether portion 200. The helmet tether portion 100 includes a length of material 120 including two or more helmet snaps 110a, 110b; the clothing tether portion 200 includes a length of material 220 including a clothing clamp 210. A length adjuster 230 may be disposed between the helmet tether portion 100 and the clothing tether portion 200.

[00107] The helmet snaps 110a, 110b are configured to mate with snaps SN1 ,SN2 disposed on opposite sides of the helmet H. For example and without limitation, the snaps SN1 ,SN2 may serve other purposes, such as for connecting a chin strap, face guard, visor, or other helmet accessory. In other embodiments, the snaps SN1 ,SN2 are disposed on the sides of the helmet FI specifically for mating with a device 10 consistent with the present disclosure. In embodiments including two helmet snaps 110a, 110b, one helmet snap 100a is disposed near one end of the length of material 120, while the other helmet snap 110b is disposed near the opposite end of the length of material 120. preferably along a center line CL of the helmet FI.

The helmet snaps 110a, 110b are associated with the length of material 120 by any suitable means; for example in the embodiments shown in FIG. 19, the helmet snaps 110a, 110b are attached to the length of material 120 by first forming holes in the length of material 120 and then press fitting two mating halves of each of the helmet snaps 110a, 110b through the holes in the length of material 120. [00108] The clothing tether portion 200 attaches (e.g., slidably attaches) to the helmet tether portion 100. In some embodiments, the clothing tether portion 200 and the helmet tether portion 100 are permanently mated to each other. For example, in some embodiments a loop 233 is disposed on the clothing tether portion 200, and the helmet tether portion 100 is disposed through the loop 233. In other embodiments (not shown), the clothing tether portion 200 and the helmet tether portion 100 reversibly mate, for example by one or more sets of complementary snaps, magnets, or hook-and-loop material.

[00109] The clothing clamp 210 is configured to mate (e.g., releasably mate) to an article of clothing J, such as at the collar JC, or to equipment worn at or near the nape of the neck, such as shoulder pads, a neck guard, or similar. In some embodiments, such as those shown in FIG. 19, the clothing clamp 210 includes two opposing clothing clamp jaws 210a, 210b that are forced towards each other (e.g., by a spring force) to latch onto the outside face of the article of clothing J and the inside face of the article of clothing J, respectively. In other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of a snap fitting that mates (e.g., releasably mates) with a snap fitting associated with the article of clothing J. In other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of a magnet that mates (e.g., magnetically mates) with a magnet associated with the article of clothing J. In still other embodiments, the clothing clamp 210 comprises, consists essentially of, or consists of one half of a hook-and-loop or similar friction-based material that mates (e.g., releasably mates) with a complementary half of the hook-and-loop or similar friction-based material associated with (e.g., stitched to) the article of clothing J. The clothing clamp 210 is associated with the length of material 220 by any suitable means; for example in the embodiments shown in FIGS. 16-18, the clothing clamp 210 is attached to the end of the length of material 220 by a loop formed in the end of the length of material 220, for example by stitches.

[00110] The length adjuster 230, when present, is associated with the length of material 220 by any suitable means; for example in the embodiments shown in FIG. 19, the length adjuster 230 is attached to the length of material 220 by an adjustment loop formed in the length of material 220, for example by weaving the length of material 220 through the rungs of an adjustment buckle 232. In this embodiment, the operable length L of the device 10 is adjustable by advancing more or less of the length of material 220 (e.g., the adjustment loop) through the adjustment buckle 232.

[00111 ] The length of material 120 of the helmet tether portion 100 may comprise, consists essentially of, or consist of any suitable material. In some embodiments, the length of material 120 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 120 is resilient.

[00112] The length of material 220 of the clothing tether portion 200 may comprise, consist essentially of, or consist of any suitable material. In some embodiments, the length of material 220 is inelastic (e.g., substantially resists lengthening in response to a tensile force applied along its length). In other embodiments, the length of material 220 is resilient.

[00113] In operation, the helmet tether portion 100 is attached to the helmet H by mating the helmet snaps 110a, 110b and the snaps SN1 ,SN2, which are preferably equidistant or substantially equidistant from the center line CL of the helmet H. The clothing tether portion 200 is attached to the clothing J (or to equipment worn about the shoulders) by clothing clamp 210, preferably colinear with the center line CL of the helmet H when the user is holding his or her head straight vertically and looking straight forward. If the operable length L is adjustable, the operable length L may be adjusted such that the device 10 is taut when the user’s chin is separated from his/her chest (e.g., when the user is in a ready-to-play stance with his/her eyes focused in the distance rather than on the playing surface immediately in front of the user), but not so taut that the user cannot easily turn his or her head from side to side. In this configuration, the device 10 resists (e.g., limits or prevents) the user from dropping his or her chin towards his/her chest, for example to look at the playing surface immediately in front of the user (e.g., when N > N _e ). The user feels a tactile “tug” when attempting to drop his/her chin, reminding the user not to focus on the playing surface immediately in front of his/her feet.

[00114] In other embodiments, the helmet tether portion 100 is configured to separate from the helmet H when the tensile force applied between the helmet H and the clothing J (e.g., between the helmet base HB and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the helmet tether portion 100 and the helmet H prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. The threshold force may be determined by the use of helmet snaps 110a, 110b and snaps SN1 ,SN2 that collectively provide a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation).

[00115] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[00116] In other embodiments, the clothing tether portion 200 is configured to separate from the clothing J when the tensile force applied between the helmet H and the clothing J (e.g., between the helmet H and the clothing collar JC) exceeds a threshold force (e.g., when N » N _e ). In these embodiments, the uncoupling of the clothing tether portion 200 and the clothing J prevents compounding potential injury to the user’s neck N when a substantial force is received by the user. In embodiments wherein the clothing clamp 210 includes two opposing clamp jaws 210a, 210b, the threshold force may be determined by the inclusion of a pad having a desirable coefficient of friction on the inside of the clamp jaw 210a that mates with the outside surface of the clothing J, and/or on the inside of the clamp jaw 210b that mates with the inside surface of the clothing J. In embodiments wherein the clothing clamp 210 is a magnet, the threshold force may be determined by the type of magnets employed (e.g., use of rare earth magnets will enable a higher threshold force than use of ferrite magnets), and/or by the surface area of interaction between the magnet of the clothing clamp 210 and the magnet associated with the clothing J (e.g., use of magnets providing a greater surface area of interaction enables a higher threshold force than use of magnets providing a lower surface area of interaction). In embodiments wherein the clothing clamp 210 is one half of a snap fitting, the threshold force may be determined by the use of a snap stud and a snap socket that provides a desirable resistance to separation (e.g., use of a snap stud and a snap socket that provides a relatively high resistance to separation enables a higher threshold force than the use of a snap stud and a snap socket that provides a relatively low resistance to separation). In embodiments wherein the clothing clamp 210 is one half of a hook-and-loop or similar friction-based material, the threshold force may be determined by the use of hook-and-loop or similar friction-based material that has a desirable coefficient of friction (e.g., use of hook-and-loop or similar friction- based material having a relatively high coefficient of friction enables a higher threshold force than use of hook-and-loop or similar friction-based material having a relatively low coefficient of friction), and/or by the surface area of interaction between the hook-and-loop or similar friction- based material of the clothing clamp 210 and the hook-and-loop or similar friction-based material associated with the clothing J (e.g., use of material providing a greater surface area of interaction enables a higher threshold force than use of material providing a lower surface area of interaction). [00117] In some embodiments, the threshold force is not more than about 10 pounds, for example not more than about 10 pounds, not more than about 9 pounds, not more than about 8 pounds, not more than about 7 pounds, not more than about 6 pounds, not more than about 5 pounds, not more than about 4 pounds, not more than about 3 pounds, not more than about 2 pounds, or not more than about 1 pound.

[00118] In some embodiments, the device 10 is tethered to a head-worn item other than a helmet H. For example and without limitation, the device 10 may be tethered to a baseball cap, a headband, a skull cap, a visor, etc. In one exemplary embodiment, a device 10 intended to be tethered to a skull cap may comprise a tether portion that includes a clothing clamp 210 disposed at one end and configured to mate (e.g., releasably mate) to an article of clothing J, and a clamp disposed at the other end and configured to mate (e.g., releasably mate) with the skull cap. Rather than rely on a breakaway closure (e.g., clasp 300), devices 10 consistent with these embodiments may optionally instead rely on the slippage of the head-worn item to provide the user U with tactile feedback indicating that the user’s chin has dropped. For example, a device 10 consistent with these embodiments tethering a skull cap to the back collar of a user’s shirt may cause the skull cap to slide towards the back of the user’s head when the user drops his or her chin. The head-worn item need not be worn immediately adjacent to the skull, however; in some embodiments the head-worn item is worn on top of a helmet and serves as a visual indicator (e.g., to officials or coaching staff) that the user has unsafely dropped his or her chin to a dangerous position. In such embodiments, the user U may experience a tactile sensation via the shirt collar, such as a tugging of the user’s shirt from the neck nape area, that indicates that the head-worn item has slipped (e.g., partially or fully) off of the helmet.

[00119] Referring now generally to FIG. 20, the device 10 in any embodiment disclosed herein may further include an electronic sensor configured to determine when the clasp 300 is separated, when the helmet clamp/snap 110 is separated from the helmet FI, and/or when the clothing clamp 210 is separated from the clothing J. In some embodiments, the electronic sensor determines when a tensile force across the device 10 exceeds the threshold force. In some embodiments, the electronic sensor is configured to transmit a signal to a transmitter in electronic communication with the electronic sensor. Upon receipt of a signal from the electronic sensor that the device 10 has separated from the helmet FI, from the clothing J, or into its component parts 100,200, the transmitter may transmit a fault signal S to a receiver. In some embodiments, the receiver is in communication with coaching software, such that the fault signal S is provided to the user’s coach C. [00120] In some embodiments, the electronic sensor transmits a separation signal S to the transmitter, which in turn transmits the separation signal S to a signal receiver and transponder 2000 (e.g., a Bluetooth or WiFi receiver associated with a wireless network or a computing device). The separation signal S is received by a computing device 1000 that catalogs data associated with the separation signal S for each user U within range of the signal receiver and transponder 2000 and/or the computing device 1000. In some embodiments, the computing device 1000 is configured to display an alert when a separation signal S is received from a device 10. In some embodiments, the alert A is transmitted by the computing device 1000 or the signal receiver and transponder 2000 to a referee or official R to, for example, prompt the referee R to stop play to avoid injury to the user U. In some embodiments, the alert A is transmitted by the computing device 1000 or the signal receiver and transponder 2000 to a coach C to, for example, prompt the coach C to substitute the user U out of active play in order to confirm the user U’s safety. In some embodiments, the signal receiver and transponder 2000 is not present, and the separation signal S is transmitted from the device 10 directly to the computing device 1000 via any suitable wireless communications protocol (e.g., Bluetooth or WiFi).

[00121] In some embodiments, the electronic sensor is a force sensor that determines a force (e.g., an impact force) associated with the user. In these embodiments, the electronic sensor transmits a force signal S to the transmitter, which in turn transmits the force signal S to a signal receiver and transponder 2000 (e.g., a Bluetooth or WiFi receiver associated with a wireless network or a computing device). The force signal S is received by a computing device 1000 that catalogs data associated with the force signal S for each user U within range of the signal receiver and transponder 2000 and/or the computing device 1000. In some embodiments, the computing device 1000 is configured to display an alert when a force signal S is received from a device 10 that exceeds a threshold force value. In some embodiments, the alert identifies the specific user U associated with the device 10 from which the separation signal S originated. In some embodiments, the alert A is transmitted by the computing device 1000 or the signal receiver and transponder 2000 to a referee or official to, for example, prompt the referee R to stop play to avoid injury to the user U. In some embodiments, the alert A is transmitted by the computing device 1000 or the signal receiver and transponder 2000 to a coach C to, for example, prompt the coach C to substitute the user U out of active play in order to confirm the user U’s safety. In some embodiments, the signal receiver and transponder 2000 is not present, and the force signal S is transmitted from the device 10 directly to the computing device 1000 via any suitable wireless communications protocol (e.g., Bluetooth or WiFi).