WEARABLE FLUID DISPENSER SYSTEM

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This Patent Application claims priority to U.S. Provisional Patent Application No. 63/116,971 , entitled “WEARABLE FLUID DISPENSER SYSTEM,” filed November 23, 2020, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

[0002] The disclosure relates to a wearable fluid delivery system and methods of using the system to dispense fluid to the body of a user. In general, the wearable fluid disperser system comprises a removable/replaceable cartridge.

BACKGROUND

[0003] The emergence of novel pathogens, bacterial and viral, has posed unprecedented challenges to public health around the world. One of the many ways to prevent the spread of bacterial and viral pathogens is frequent and effective handwashing. In both healthcare and community settings, hand sanitizing is now used in addition to or as an alternative to handwashing with soap and water. There are a number of varieties of sanitizer fluids and gels, as well as dispensers with varying degrees of effectiveness and convenience.

[0004] Dispensers for sanitizers and fluids other than sanitizers often exhibit inefficient delivery which can result in spills and misapplication in terms of location and amount of fluid dispensed.

[0005] Many dispensers are inconveniently located and therefore not readily accessible before and after user contact with potentially contaminated surfaces. There remains a need for a simple, easily accessible dispenser for hand sanitizer and other liquids that are applied to the body. The present disclosure addresses this need.

BRIEF SUMMARY

[0006] Disclosed herein is a wearable fluid delivery system which includes a fluid dispenser apparatus or device with an attachment component, a fluid-containing element, and fluid to be dispensed to a user, wherein the fluid delivery system is attachable to the body of a user and the fluid dispenser apparatus is positioned adjacent the body of the user.

[0007] The fluid dispenser apparatus may be directly or indirectly attached to the user, and fluid is dispensed by applying force to the fluid dispenser apparatus at an angle substantially orthogonal relative to the surface that the dispenser apparatus is attached to. [0008] The wearable fluid delivery system may have (a) a fluid-containing element and attachment element that are a single unit, (b) a separate and reusable attachment element and a disposable fluid-containing element or cartridge, or (c) a separate and reusable attachment element and a reusable fluid-containing element or cartridge.

[0009] The fluid-containing element may be refillable and may be a flexible container or a rigid container such as a cartridge, e.g., a rigid cartridge or an airless pouch cartridge.

[0010] The fluid to be dispensed to a user is selected from the group consisting of disinfectant or sanitizer fluid, sanitizer gel, lotion, edible items, water (including flavored or colored water), shaving cream, soaps, hand cleaners which may include abrasive particles, hair salon and spa products for hair and skin, pigmented fluids such as paint, colorants for paint, dyes, moisturizer cream, sunscreen, oil, pharmaceuticals, medical gels (such as ultrasound gel), greases, cosmetics, camouflage paints, performance makeup, insect repellant, adhesive compounds, and anti-burn fluids.

[0011] The fluid may be delivered as a liquid, gel, spray, aerosol, or foam.

[0012] The fluid dispenser apparatus may be operated in any orientation with one hand to dispense fluid onto a user's hand or hands.

[0013] Operation of the fluid delivery system may involve an external actuation element which is actuated to dispense fluid by engaging a fluid pump.

[0014] A single contact or touch of the actuation element such as a push button engaged at an angle substantially orthogonal to the attachment surface of the dispenser can actuate the fluid dispenser apparatus.

[0015] Also disclosed is a process for dispensing fluid to the body of a user by providing a fluid dispenser apparatus as described herein, directly or indirectly attaching the fluid dispenser apparatus to the body of a user (e.g., a user’s arm, wrist, thigh, or dorsal portion of the waist), or to an object such as a pole or automobile, engaging an actuating mechanism on the dispenser and dispensing fluid from the fluid dispenser apparatus. The user may engage the actuating mechanism by depressing a push bar with the user’s hand resulting in application of force at an angle substantially orthogonal to the attachment contact surface, and fluid is dispensed into the palm of the user.

BRIEF DESCRIPTION OF THE DRAWINGS

[0001] Figs. 1 A - 1 D provide a schematic depiction of a wearable fluid disperser system with a replaceable cartridge. [0002] Fig. 1 A provides an external view of the dispenser system showing the replaceable cartridge locked in place via a locking mechanism that secured the cartridge to the dispenser.

[0003] Fig. 1 B provides an external view of the dispenser system showing the replaceable removed and illustrating how it is inserted into the dispenser system.

[0004] Fig. 1 C provides an internal view of the dispenser system showing the dispensing mechanism and electronics.

[0005] Fig. 1 D provides an internal view of the dispenser system showing the locking mechanism.

[0006] Figs. 2A and 2B provide a schematic depiction of an external view of an embodiment of the wearable fluid disperser system which has a replaceable cartridge comprising a sealing function. Sealed cartridges are provided and the dispenser has a mechanism to pierce the cartridge (or pouch), allowing access to the liquid or gel in the cartridge.

[0007] Figs. 3A and 3B provide a schematic depiction of an external view of an embodiment of the wearable fluid disperser system which has a refillable replaceable cartridge. In this embodiment, a user can refill the cartridge with a liquid or gel using a unique and proprietary mechanism for attachment to the source of liquid or gel and to the dispenser.

[0008] Figs. 4A and 4B provide a schematic depiction of an external view of an embodiment of the wearable fluid disperser system which dispenses a controlled volume of liquid or gel, e.g., 2 to 3 ml per “pump” of the dispenser.

[0009] Fig. 5 provides a schematic depiction of an external view of an embodiment of the wearable fluid disperser system with dispensing by non-contact, sensor-based actuation of the dispenser.

[0010] Figs. 6A - 6D provide a photographic depiction of 4 embodiments of the wearable fluid disperser system, where the dispenser system is attached to: the arm of the user (Fig. 6A); a belt or pocket of the user (Fig. 56B); a lanyard around the neck of the user (Fig. 6C); and a bag carried by the user (Fig. 6D).

Figs. 7A - 7C provides a schematic depiction of an embodiment of the wearable fluid dispenser system which has a push crank high bar lifter mechanism, where the dispenser is shown attached to a user’s bicep with the “push bar”: in the resting state at the start of a stroke (Fig. 7A); in full travel state, end of stroke, with a fluid stream impinging on user’s palm (Fig. 7B); and in full travel state, end of stroke (Fig. 7C). In this embodiment, only one hand is required to dispense fluid onto (into) a user’s hand (palm). The fluid may be dispensed in a repeatable, metered, preset, controlled amount, or ‘dose’ of fluid.

[0011] Fig. 8 is a schematic depiction of a cross section of a “Push Crank High Bar Lifter Dispenser" shown in full travel state, end of stroke. The fluid cartridge is shown fully filled with fluid.

[0012] Fig. 9 is a schematic depiction of a rear view of a “Push Crank High Bar Lifter Dispenser" which illustrates operation of the wearable fluid delivery system. The user applies a force 19 to the Push Bar 14 to dispense fluid. The applied force 19 lies on the “plane of symmetry” about which features of the dispenser and the fluid cartridge are mirrored (left and right). In the embodiment exemplified in the figure, the pump axis 27 of the pump actuator 25 also lies on the “plane of symmetry”.

DETAILED DESCRIPTION

Definitions.

[0016] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosure pertains. Although other methods and materials, similar or equivalent, to those described herein can be used in the practice of the present invention, exemplary materials and methods are described herein. Other features and advantages of the disclosure will be apparent from the following detailed description, and from the claims.

[0017] In describing and claiming the present invention, the following terminology will be used in accordance with the definitions set out below.

[0018] The term "comprises”, and grammatical equivalents thereof are used herein to mean that, in addition to the features specifically identified, other features are optionally present. For example, a composition or device "comprising" (or "which comprises") components A, B and C can contain components A, B and C, or can contain components A, B and C but also one or more other components.

[0019] The terms "consisting essentially of" and grammatical equivalents thereof are used herein to mean that, in addition to the features specifically identified, other features may be present which do not materially alter the claimed invention. The term "at least" followed by a number is used herein to denote the start of a range beginning with that number (which may be a range having an upper limit or no upper limit, depending on the variable being defined). The term "at most" followed by a number is used herein to denote the end of a range ending with that number (which may be a range having 1 or 0 as its lower limit, or a range having no lower limit, depending upon the variable being defined). When a range is given as " (a first number) to (a second number)" or "(a first number) - (a second number)", this means a range whose lower limit is the first number and whose upper limit is the second number.

[0020] The terms “plural”, “multiple”, “plurality” and “multiplicity” are used herein to denote two or more than two features.

[0021] Where reference is made herein to "a" or "an" feature, this includes the possibility that there are two or more such features (except where the context excludes that possibility). Where reference is made herein to two or more features, this includes the possibility that the two or more features are replaced by a lesser number or greater number of features providing the same function, except where the context excludes that possibility. The numbers given herein should be construed with the latitude appropriate to their context and expression; for example, each number is subject to variation which depends on the accuracy with which it can be measured by methods conventionally used by those skilled in the art.

[0022] The term "arm band" as used herein refers to a band or other mechanism for attachment of the wearable fluid delivery system to the arm of a user

[0023] The term "attachment area" as used herein refers to the location on the user where the wearable fluid delivery system is attached.

[0024] The term "attachment component" as used herein refers to an arm band or other connector used to attach the wearable fluid delivery apparatus to a stationary item, such as a pole, a fixture on a wall, or a vehicle to create a stationary installation.

[0025] The term "delivery” as used herein refers to delivery or dispensing of fluid from a fluid dispenser system as disclosed herein.

[0026] The terms "dispenser enclosure plane of symmetry", “dispenser plane of symmetry", and “plane of symmetry” are used interchangeably herein with reference to the vertical plane about which all physical features of the dispenser are mirrored to from left and right-side dispenser elements and features.

[0027] The term "fluid" as used herein refers to the liquid substance provided in the dispenser, for example, disinfectant or sanitizer fluid, sanitizer gel, lotion, edible items, water (including flavored or colored water), shaving cream, soaps, hand cleaners which may include abrasive particles, hair salon and spa products for hair and skin, pigmented fluids such as paint, colorants for paint, dyes, moisturizer cream, sunscreen, oil, pharmaceuticals, medical gels (such as ultrasound gel), greases, cosmetics, camouflage paints, performance makeup, insect repellant, adhesive compounds, or anti-burn fluids. The fluid or gel may comprise a scent, be colored, and may have any viscosity, such as that of a liquid or that of a gel, so long as the dispenser pump is able to dispense the fluid or gel.

[0028] The term "fluid cartridge" is used herein with reference to an interchangeable container of dispensing fluid that may include a fluid cartridge pump assembly. A fluid reservoir provided as a pouch inside a cartridge is considered to be a “fluid cartridge”. The terms "fluid reservoir" and “fluid pouch” are used interchangeably herein with reference to a reservoir within the wearable fluid delivery system that holds fluid to be dispensed and may be rigid or deformable or “squishy”, and may be of varying shapes and sizes. Such a fluid reservoir or fluid pouch may be associated with a pump or a seal and may be replaceable or refillable.

[0029] The term "fluid cartridge pump" is used herein with reference to the set of components that comprise a fluid cartridge pump, which serve to evacuate fluid from a fluid cartridge and dispense it through the spout/nozzle.

[0030] The terms "fluid dispenser apparatus” and “fluid dispenser device” are used interchangeably herein with reference to the component of a wearable fluid delivery system which dispenses fluid.

[0031] The term "full travel state, end of stroke" as used herein refers to an embodiment where the push bar of a fluid dispenser apparatus is displaced to the limit of its travel by application of force from a user’s hand, and therefore dispenses a full, preset, metered amount of fluid. In this embodiment, if the push bar is displaced by the user through only part of its stoke, the amount of fluid dispensed would be proportionally less than a full metered dose.

[0032] The terms "individual" and "user" are used interchangeably herein to refer to a mammal, typically a human or an animal.

[0033] The term "lifter deck" as used herein means the component in contact with and supporting the bottom of a fluid cartridge, which through a remote actuation mechanism, applies to the fluid cartridge a lifting force when the user applies a force to the push bar.

[0034] The term "plunger-type pump" is used herein with reference to the type of piston-based fluid cartridge pump used in the embodiment shown in Figs. 7A, 7B and 7C, and ubiquitous in household soap and lotion dispensers. Commonly-used plunger-type pumps or “engines” are of the ‘atmospheric’ sub-type, meaning a volume of air is maintained in the space above the fluid surface within the fixed volume fluid reservoir, ‘bottle’ or ‘container’. As fluid is dispensed, the volume of air within the reservoir increases to compensate for the reduction in fluid volume. The pressure of this air volume is maintained at ambient air pressure, thus the term, “atmospheric”. In plunger-type pumps of the ‘airless’ sub-type, as used in this prototype, an air-free fluid reservoir is maintained by means of a variable fluid volume (reservoir) to accommodate the reduction of fluid volume that results from dispensing fluid, by means of a piston, pouch, or ‘sachet’.

[0035] The term "pump actuation axis" is used herein with reference to the axis along which the plunger of a plunger-type fluid pump travels when actuated by application of external force. In the common household soap or lotion dispensers, the pump actuator is typically the external element of the plunger-type fluid pump that a user applies force to. The nozzle or spout may be integral with the pump actuator, or as in the prototype shown in Figs. 7A, 7B, and 7C, the spout or nozzle may be an additional element that interfaces with the pump actuator. The interface must be fluid-tight by means of a sealing element. The separation of nozzle or spout from the pump actuator may be employed to increase the distance of the point at which dispensed fluid leaves the spout or nozzle (orifice) from the pump actuation axis, and/or to permit the spout or nozzle to remain fixed within the dispenser.

[0036] The term "slider crank mechanism", is used herein with reference to the push bar, connecting link and lifter deck of an embodiment of the fluid dispenser apparatus disclosed herein.

[0037] The term "substantially orthogonal" is used herein with reference to the direction of force applied to the part of the dispenser a hand pushes on to actuate the apparatus, for example, a push bar 14.

[0038] Typically, the direction of force applied to the push bar relative to the surface that the dispenser apparatus is attached to is as close to orthogonal as the technical features allow, however, as shown in Fig. 9, if the direction of applied force 19 does not deviate by more than 20° or 30° from the surface normal 21 to the attachment contact surface 18, it is considered to be substantially orthogonal.

[0039] This specification incorporates by reference all documents referred to herein and all documents filed concurrently with this specification or filed previously in connection with this application, including but not limited to such documents which are open to public inspection with this specification. Wearable fluid delivery system

[0040] The disclosure provides a wearable fluid delivery system which includes a fluid dispenser apparatus or device that is attachable to a user. The dispenser apparatus includes a fluid-containing element or cartridge and fluid to be dispensed to a user, wherein fluid is dispensed to a user by remotely applying force via a pump actuating mechanism to a pump that draws fluid from the fluid-containing element or cartridge. When the hand of a user actuates the apparatus, e.g. by pushing a push bar 14, the remotely applied force is typically applied at an angle substantially orthogonal to the attachment contact surface of the fluid dispenser apparatus.

Fluid dispenser apparatus or device that is attachable to a user

[0041] In some embodiments, the wearable fluid delivery system includes a fluid dispenser apparatus or device which comprises an attachment element and one or more fluid-containing elements.

[0042] In some embodiments, the fluid-containing element and attachment element are a single unit.

[0043] In some embodiments, the wearable fluid delivery system comprises a separate and reusable attachment element and a disposable fluid-containing element or cartridge.

[0044] In some embodiments, the wearable fluid delivery system comprises a separate and reusable attachment element and a reusable fluid-containing element or cartridge.

[0045] In some embodiments, the fluid-containing element may include an outer fluid-containing element adapted to house fluid therein, or alternatively an inner fluid-containing element to house fluid and outer fluid container housing adapted to house the inner fluid-containing element.

[0046] The fluid dispenser apparatus may have any shape, design or size that allows for functional operation.

[0047] In some embodiments, the fluid-containing element is disposable.

[0048] In some embodiments, the fluid-containing element is a flexible container, e.g., a fluid bag, pouch, sachet, or bladder. [0049] In some embodiments, the fluid-containing element is a rigid container, e.g., a cartridge.

[0050] In some embodiments, the fluid dispenser apparatus accommodates one or more fluidcontaining elements, i.e., a cartridge, fluid reservoir or pouch of a specific shape and design. One or more of the fluid cartridge, reservoir or pouch shape, color, texture, decoration, transparency, selective transparency, may be unique.

[0051] In some embodiments, the fluid-containing element fits into the fluid dispenser apparatus such that it is “keyed” to only accept fluid-containing elements which have a particular shape.

[0052] In some embodiments, the fluid-containing element has a minimum or maximum fluid capacity.

[0053] In some embodiments, the fluid dispenser apparatus actuation element engages a fluid pump to dispense fluid. The pump may or may not be integral to the device. In some embodiments, the pump is a plunger-type pump.

[0054] In some embodiments, the fluid-containing element and associated pump (whether integral with cartridge or with dispenser) is of the airless type. An airless fluid-containing element can be a cartridge, reservoir or pouch, and associated pump can be a pouch (‘sachet’) type, or piston type.

[0055] In some embodiments, a pouch type airless fluid-containing element is created by deploying a very thin, very flexible pouch or bag or sachet or cartridge (‘bottle’) container ‘liner’. The liner may or may not be adhered or laminated to the inside surface of the fluid-containing element.

[0056] In some embodiments, the fluid-containing element is reusable, e.g., refillable.

[0057] In some embodiments, the external surface of the fluid-containing element has a fill port.

[0058] In some embodiments, the fluid dispenser apparatus includes a refill station.

[0059] In some embodiments, the refill system is a user energized pump.

[0060] In some embodiments, the refill system is an automated fill system, which may include an electrically energized pump and automated fill process.

[0061] In some embodiments, the refill system is an OEM fluid dispenser.

[0062] In some embodiments, refilling of an airless pouch fluid-containing element is accomplished by applying a positive pressure (gas or liquid) on the fluid side of a piston. The liquid used to apply positive liquid pressure to the fluid side of the piston may be the dispensing fluid itself.

[0063] In some embodiments, refilling of an airless pouch fluid-containing element is accomplished by applying a differential low pressure, e.g., a partial vacuum to the ambient environment ‘air’ side of the piston.

[0064] In some embodiments, the fluid-containing element has a seal which is perforated when installed in the fluid dispenser apparatus.

[0065] In some embodiments, the fluid dispenser apparatus comprises an internal fluid reservoir that is integral with the fluid dispenser.

[0066] In some embodiments, the fluid dispenser apparatus comprises a fluid dispensing mechanism.

Attachment of Fluid Dispenser Apparatus to a User

[0067] In some embodiments, the fluid dispenser apparatus is directly attached to a user, for example, a user’s arm (wrist, bicep, triceps, or forearm, e.g., midway between the elbow and wrist), or a user’s leg (thigh, calf, or knee).

[0068] In some embodiments, the fluid dispenser apparatus is directly attached to a user’s waist or back.

[0069] In some embodiments, the fluid dispenser apparatus is indirectly attached to a user’s body by way of clothing, belt, collar, strap, band or other means that holds the dispenser in place adjacent the body of the user. Examples include but are not limited to a backpack, a handbag, a school bag, a lanyard, or a fanny pack.

[0070] In some embodiments, the fluid dispenser apparatus has an attachment element, for example a band that attaches the apparatus to a user’s body.

[0071] The attachment element may have elastic and/or non-elastic elements.

[0072] The attachment element may have an anti-slip element, for example, silicone or other elastomer on the surface against a user’s skin, clothing or intermediate element.

[0073] The attachment element may be adjustable or removable.

[0074] The attachment element may be a band with a band length adjustment, e.g., to fit individual user and clothing thickness variation. There may be a band fit adjustment for relatively large variation in size between users, which typically would be adjusted once to the user’s satisfaction and then left in place. There also may be a tension adjustment, which allows for more precise fit to accommodate variation in clothing thickness, small changes in user anatomy due to minor weight gain or loss, changes in muscle mass, swelling, etc. Such adjustments may be used to enable precise tension control within the arm band for purposes of achieving the desired balance of user comfort, and stability of the attachment to prevent slipping, etc.

[0075] The attachment element may comprise an attachment and tensioner, e.g., a clasp, or band slack loop.

[0076] The attachment element may comprise a removable attachment element that can be quickly disconnected from the fluid dispenser apparatus at one or both ends of attachment element.

Fluid

[0077] Examples of fluids provided in the dispenser include but are not limited to, sanitizer fluid, sanitizer gel, lotion, edible items, water (including flavored or colored water), shaving cream, soaps, hand cleaners which may include abrasive particles, hair salon and spa products for hair and skin, pigmented fluids such as paint, colorants for paint, dyes, moisturizer cream, sunscreen, oil, pharmaceuticals, medical gels (such as ultrasound gel), greases, cosmetics, camouflage paints, performance makeup, insect repellant, adhesive compounds, and anti-burn fluids.

[0078] The fluid provided in the dispenser may be scented or unscented.

[0079] The disinfectant or sanitizer fluid may be a sanitizing gel, which may or may not comprise alcohol.

[0080] The disinfectant or sanitizer fluid may be delivered as a liquid, gel, spray, aerosol, or foam.

Features and operation of the fluid dispenser apparatus.

[0081] The fluid dispenser apparatus may operate at any orientation, including upside down.

[0082] The fluid dispenser may be operated with one hand. More specifically, in this embodiment, the same hand that operates the fluid dispenser is the hand fluid is dispensed onto.

[0083] In some embodiments, fluid is dispensed into a user's hand or hands.

[0084] In some embodiments, fluid is dispensed to a location other than a user's hand or hands. [0085] In some embodiments, the fluid dispenser apparatus comprises an external actuation element, e.g., a “push bar” or “push button”, which is actuated to dispense fluid.

[0086] In some embodiments, dispensing operates in a non-contact, sensor-based manner, as shown in Fig. 5.

[0087] In some embodiments, the fluid dispenser apparatus comprises a “squeeze-type” element containing fluid, e.g., like a toothpaste tube.

[0088] The actuation element may be located at any position on the fluid dispenser apparatus.

[0089] In some embodiments, the fluid dispenser apparatus is engaged by a single contact (touch, push or depression) of the actuation element, wherein actuation results in dispensing of fluid from the one or more fluid-containing elements or cartridges.

[0090] In some embodiments, the actuation element is a “push bar” or “push button” that is engaged at an angle substantially orthogonal to the attachment surface of the dispenser in order to dispense fluid. This may reduce or eliminate the tendency of the fluid dispensing apparatus to slip along the attachment surface when dispensing force is applied to apparatus. While not wishing to be bound by theory, application of force at an angle substantially orthogonal to the attachment surface enables less tension on the attachment element that attaches fluid dispenser apparatus to user. This can result in one or more of increased comfort, better ergonomics, improved circulation, reduced strain on the attachment element for increased service life and reliability, decreased attachment band tensioner stroke requirement, and reduced sensitivity to attachment band length adjustment.

[0091] In some embodiments, a single engagement of the actuation mechanism of the fluid dispenser apparatus dispenses sufficient disinfectant or sanitizer to disinfect two hands.

[0092] In some embodiments, the actuation mechanism is located on one arm of a user and the opposite hand is used to engage the actuation mechanism.

[0093] In some embodiments, the fluid dispenser apparatus comprises one or more sensors.

[0094] In some embodiments, the fluid dispenser apparatus comprises a pump.

[0095] In some embodiments, the fluid dispenser apparatus comprises a rolling ball or other revolute shape or form.

[0096] In some embodiments, the fluid dispenser apparatus comprises an adjustable control, e.g., a rotating dial. [0097] In some embodiments, the fluid dispenser apparatus comprises an internal fluid reservoir.

[0098] In some embodiments, the fluid dispenser apparatus comprises an external fluid reservoir.

[0099] In some embodiments, the fluid cartridge may be connected to an integral pump or may lack an integral pump and have a one-time use foil or polymer or elastomer film or membrane seal that is pierced when the fluid cartridge is inserted into the dispenser as shown in Figs. 2A and 2B. In some embodiments, the fluid cartridge may lack an integral pump and have a reusable seal, such as an elastomer O-ring or lip seal that permits re-use of the fluid reservoir or fluid pouch.

[00100] In some embodiments, the fluid dispenser apparatus comprises a fluid reservoir or fluid pouch. The fluid reservoir or fluid pouch may be connected to an integral pump or may lack an integral pump and have a one-time use foil or polymer or elastomer film or membrane seal that is pierced when the fluid reservoir or fluid pouch is inserted into the dispenser. In some embodiments, the fluid reservoir or fluid pouch may lack an integral pump and have a reusable seal, such as an elastomer O-ring or lip seal that permits re-use of the fluid reservoir or fluid pouch.

[00101] In some embodiments, the fluid dispenser apparatus is airless.

[00102] In some embodiments, the fluid dispenser apparatus operates by way of a vacuum.

[00103] In some embodiments, the fluid dispenser apparatus is battery operated.

[00104] Users of the fluid dispenser apparatus may be a human or an animal. In some embodiments, the fluid dispenser apparatus is attached to a human and fluid is dispensed to the body of an animal. In some embodiments, the fluid dispenser apparatus is attached to an animal and fluid is dispensed to the body of a human.

Methods of Use

[00105] In one embodiment, a process for dispensing fluid to the body of a user, including the steps of: (a) providing a fluid dispenser apparatus adjacent the body of a user; (b) attaching the fluid dispenser apparatus to the body of the user or to an object such as a pole or automobile; and (c) dispensing fluid into the hand of a user is provided. [00106] The fluid dispenser apparatus may comprise an actuating mechanism that is actuated at an angle substantially orthogonal to the user at the dispenser attachment contact surface, wherein fluid is dispensed by actuating the fluid dispensing mechanism.

[00107] The actuating mechanism may be a push bar, as shown for example in Figs. 7A, 7B, 7C and 8 which illustrate an embodiment of the wearable fluid delivery system. In the absence of force applied to the push bar, a spring that may be part of the fluid cartridge pump, particularly in a common plunger type fluid pump, returns the remote actuating mechanism components (lifter deck, push bar, and left and right connecting links) to their “resting state”, “start of travel” position by transmitting force through the fluid cartridge to the remote actuating mechanism. In other embodiments, the remote actuating mechanism components could be returned to their resting state/start of travel position with a spring element that is separate from the fluid cartridge, which could allow the spring to be removed from the fluid cartridge pump, e.g., to save space in the cartridge, and/or to reduce cost of the cartridge. Pumps for dispensing applications often use springs internal to the pump and that are in contact with the fluid.

Removing the spring from such a fluid pump has the advantage of removing spring metal from contact with the dispensed fluid, thereby preventing corrosion of the spring which can result in trace contamination of the fluid with metal spring alloy constituents.

[00108] The actuating mechanism may be engaged by a single touch. The single touch may be a stroke and the stroke may be adjustable. In some embodiments, the stroke is a “through full stroke”. In some embodiments, the length of the stroke is ¹ /2 inch or 1 inch.

[00109] The fluid dispenser apparatus may be attached to a user’s bicep, forearm, wrist, thigh or waist.

[00110] Figs. 7A, 7B and 7C depict one exemplary embodiment of the wearable fluid delivery system 1 wherein the fluid cartridge 4 is lifted from the bottom of the cartridge 6 in the direction of the pump actuation axis of the fluid cartridge pump 8, by action of the lifter deck 10, which travels in linear guides 22, oriented in the same direction. The lifter deck 10 is actuated remotely when the user 2 applies force to the push bar 14, which is part of a slider crank mechanism 16. Motion is communicated by the connecting links 12 to the lifter deck 10. The slider crank mechanism 16 is mirrored about the dispenser enclosure plane of symmetry. The direction of force applied by the user 2 (edge of user’s palm) is approximately at a right angle (orthogonal) to surface of user’s body at the attachment site. This can minimize forces in directions that tend to displace (e.g., cause the arm band 20 to slip) or alter the attitude of the dispenser during actuation. This can also improve user comfort. The attitude of the dispenser is the relative position of the dispenser to the limb or object that the dispenser is attached to. The ‘attitude’ or relative position to the attachment limb or object can be described by 6 degrees of freedom of movement : 3 angles - roll, pitch and yaw, and 3 displacements- X, Y, Z. When force is applied to the dispenser, it can rotate in any combination of three directions, and it can also displace (travel linearly) in any combination of three directions. When force is applied not only substantially orthogonal to the attachment surface, but also in the central region of the attachment contact surface, rather than near the edge of the attachment contact area, the tendency of the dispenser to shift, or alter its attitude or orientation or position relative to the users limb or other object the dispenser is attached to is minimized, while also requiring the least arm band tension to achieve the desired level of stability (resistance to angular or linear displacements relative to the object dispenser is attached to).

[00111] In some embodiments, the direction of the pump stroke is parallel to the user’s body surface, with force applied by a user in the same direction as the pump actuation axis. This is typical of most existing plunger pump dispensers, and the direction of force that is most likely to cause the attachment to slip and upset the orientation of the dispenser relative to the user’s body at the attachment location (e.g., an arm band).

[00112] The use of high grip silicone beads (or other elastomers, TPUs, or urethanes) on the arm band surface and/or dispenser back surface can further minimize slip tendency and improve dispenser stability on the user, further reducing the tension needed in the arm band. In addition, texture (dots, ribs, cross hatching, and other embossed patterns) can be molded directly into dispenser surfaces that interface with the user’s body or clothes at attachment to reduce slip and improve stability of attachment.

[00113] Fig. 7C shows an example where the edge of a user’s palm has touched a push bar as the only touch point. Sanitizing fluid can cover this touch point on a user’s hand with fluid and thus disinfect the touch point area.

[00114] In some embodiments, an arm band made of woven elastic that may include a logo or other branding is part of the wearable fluid delivery system. In some embodiments, overlapped closures and size adjustments may be Velcro (e.g., hook and loop) interfaces, e.g., ‘non snagging’ hooks that don’t catch on clothing. A variety of arm band tensioning schemes may be used to facilitate dispenser positioning and attachment and removal using a single hand. A clasp (similar to a triple fold watch clasp) may be injection molded with integral band capture features. In some embodiments, a sliding interface tensioner with a spring pre-load is used. In some embodiments, an over-center latch is used to introduce slack for positioning or removal. Exemplary arm band concepts include, but are not limited to arm bands with closures, tensioners, size adjustment mechanisms, elastic, or clasps. Exemplary arm band materials include neoprene, cast elastomer, elastic webbing, nylon woven webbing, leather, faux leather, and the like.

[00115] As shown in Fig. 9, if the dispenser is mounted to a relatively compliant object, the contact force may be applied over a relatively large portion of the area of the attachment contact surface 18, resulting in a relatively low contact pressure (force/area ratio). If the dispenser is attached to a relatively non-compliant, ‘hard’ object, the forces that contribute to the effective reaction force 23 may be relatively few in number and applied over relatively small discrete contact areas ‘patches’ that lie on the attachment contact surface 18, thus resulting in relatively high contact pressures (force/area) for the same applied force 19 and corresponding reaction force 23.

[00116] The slip resistance force 29 must be sufficient in magnitude to oppose the sum of the weight of the dispenser, the exertion of applied force 19 , and dynamic forces that arise from accelerations (sudden movements), for example if the user makes sudden starts, stops, pirouettes, with accelerations imparted to the user and dispenser. This may happen while in or on a vehicle, including road bumps, vibration, or the like.

[00117] The portion of slip resistance force 29 required to oppose the applied force 19 , lies on the “plane of symmetry” and is orthogonal to the surface normal 21. This portion of slip resistance force 29 is the component of reaction force 23 that acts to oppose the ‘slip’ or relative change in position of the dispenser on the object it is attached to when the user exerts applied force 19 to the push bar 14.

[00118] When the dispenser is attached by means of an arm band 20, contributions to slip resistance force 29 are made by the friction force that develops between the attachment contact surface 18 and the object this surface is in contact with (e.g., a user or pole), as well as the friction force that develops between the interface of the arm band 20 and the object the dispenser is attached to. Provided contact is maintained between the attachment contact surface 18 and the object the dispenser is attached to, the portion of slip resistance force 29 that derives from arm band tension is available to oppose slip in any direction on the attachment contact surface 18.

[00119] The adjustable tension maintained in the arm band develops a contact force between the interfaces of the arm band and attachment contact surface 18 and the object the dispenser is attached to, which is independent of the reaction force 23 that is present only when the user exerts applied force 19 . Thus with arm band tension, a slip resistance force 29 is maintained at all times to keep the dispenser in place when fluid is not being dispensed, yet when a larger slip resistance force 29 is required to oppose the addition of the component of reaction force 23 in the direction of slip resistance force 29, the component of reaction force 23 in the direction of the surface normal 21 adds to the contact force contributed by the arm band 20 between the attachment contact surface 18 and the object it is attached to.

[00120] Increasing the friction coefficient (p) allows a reduction in contact force to maintain the same friction force. Therefore, adding silicone or urethane or TPU or similar high friction coefficient, compliant materials to the arm band interface and the attachment contact surface 18 allows for reduced contact force and therefore reduced arm band tension for increased comfort, blood circulation, and longer durations of wearable use.

[00121] To minimize the required slip resistance force 29 and the tendency of the dispenser to slip on the object to which it is attached, while also minimizing the required arm band tension, the component of applied force 19 in the direction of the surface normal 21 can be maximized, while the component of applied force 19 orthogonal to surface normal 21 is minimized. In some embodiments, the acute angle between surface normal 21 and applied force 19 does not exceed 30 degrees. In some embodiments, the acute angle between surface normal 21 and applied force 19 does not exceed 20 degrees.

[00122] Placing pump axis 27 on the plane of symmetry balances loads and deflections of lifter deck 10, connecting links 12 and push bar 14 and contributes to minimizing friction between lifter deck 10 and linear guides 20.

[00123] A table of figure elements 9 is provided below.

[00124] Additional exemplary embodiments of the wearable fluid delivery system, include, but are not limited to the following:

[00125] A wearable fluid delivery system comprising a dispenser with a hidden, compliant nozzle, wherein a door opens when a nozzle extends under hydraulic dispensing pressure, with actuation substantially orthogonal to height axis.

[00126] A wearable fluid delivery system comprising a dispenser with a compliant

“Nozzle/ Actuator Design”, including a dispense annunciator bell, hydraulic accumulator in series with a flex nozzle to delay fluid delivery until the door is sufficiently open.

[00127] A system comprising a diaphragm pump metering dispenser with hand relief in the dispenser enclosure with actuation substantially orthogonal to height axis. This embodiment has a tactile click for end of full stroke user feedback.

[00128] A wearable fluid delivery system comprising a dispenser with a top located pump with a mechanism for remote application of dispensing force at bottom of the dispenser, with actuation substantially orthogonal to height axis.

[00129] A wearable fluid delivery system comprising a dispenser with an elliptical (or oval) cartridge (reservoir) shape for low profile mounting surface (to a user’s body) but more capacity than a cylindrical cartridge. This embodiment has a linkage from the pump actuator to a flexible tube nozzle cover door to open during actuation and deploy the nozzle. In some embodiments, the nozzle cover door is part of a replaceable cartridge and color coordinated with fluid contents, labeled, decorated, etc. for identification.

[00130] A wearable fluid delivery system comprising a dispenser with an organic, non- prismatic enclosure shape candidate with thin waist for closely hugging a user’s body (body mounted). This embodiment may include fragrance packaging inspiration.

[00131] A wearable fluid delivery system comprising a dispenser with an organic, non-prismatic enclosure shape candidate with varying cross section thickness (for body mounting). This embodiment may include a bicycle lamp inspiration.

[00132] A wearable fluid delivery system comprising a dispenser with a liquid-tight compliant, shaped membrane/diaphragm of otherwise rigid enclosure which displaces a reservoir fluid when actuated. This embodiment may include a submerged metering pump which dispenses a controlled dose through a nozzle. Air may be admitted into the ‘head space’ of reservoir to compensate for dispensed fluid. In this embodiment, the entire assembly may be disposable. An airless version of this embodiment uses a pouch liner formed to accommodate the swept volume of a shaped actuation membrane, wherein no air is admitted into interior of the airless pouch. In some embodiments, the entire assembly membrane is molded to the cartridge instead of the enclosure, and the cartridge may be replaceable.

[00133] A wearable fluid delivery system comprising a dispenser with a shaped, non-uniform cross section fluid bottle or integral reservoir with a pull-down link from the center back or side stirrup, and a push bar acting on a linear or curved path.

[00134] A wearable fluid delivery system comprising a dispenser with a pump location on the cartridge which is remote from the dispenser nozzle (‘spout’) location. A conduit (tube) can be routed through the cartridge to the nozzle to create a self-contained fluid path for a replaceable cartridge.

[00135] A wearable fluid delivery system comprising a dispenser with a roller pump which has an inelastic roller collapsing an elastic tubular volume (peristaltic pump) with a metered dispense volume (dose). This embodiment may include a squeezable fluid reservoir with check valves, and a nozzle remote from the squeezable volume.

[00136] A wearable fluid delivery system comprising a dispenser including a wedge lifter (with orthogonal actuation to plunger pump axis). This embodiment may include a replaceable cartridge nozzle which fits into and seals within a molded elastomer nozzle extension which is compliant (soft/friendly to user), and extends to a dispense orifice as needed.

[00137] A wearable fluid delivery system comprising a dispenser with a hydraulic dosing (metering) pump with a remote (squeezable) actuation bladder that communicates fluid pressure (when a user depresses the bladder) to collapse compliant pump metering volume within the pump housing. Inherent or discrete spring action restores the pump volume and a replaceable reservoir with a fluid seal (including an elastomer septum, pierceable polymer or foil membrane, and O-ring. The pump is integral with the dispenser.

[00138] A wearable fluid delivery system comprising a dispenser with a squeezable actuation bladder that communicates fluid pressure (when a user depresses the bladder) to drive a fluid metering pump. Pumps are energized by a bladder which drives (1) a sealed piston actuator, (2) an integral bellows actuator, and (3) an integral ‘rolling diaphragm’ actuator.

[00139] A wearable fluid delivery system comprising a dispenser with a roller pump which has an inelastic roller collapsing an elastic tubular volume (peristaltic pump). The rolling diaphragm pump (membrane pump) is very flat and compact at one end of the dispenser and driven remotely by an actuation mechanism. A user actuation stroke and force is transformed to pump actuation and force in desired ratio by selection of relative lever arm lengths in the actuation mechanism.

[00140] A wearable fluid delivery system comprising a dispenser with a bellows pump remotely driven by a push panel or bar thru a lever, wherein the force/travel ratio optimized.

[00141] A wearable fluid delivery system comprising a dispenser with a diaphragm and collapsible volume metering pumps driven remotely by an actuation mechanism, a replaceable cartridge makes a seal with the pump which is integral to the dispenser.

[00142] A wearable fluid delivery system comprising a diaphragm pump dispenser with remote actuating push lever stress analysis.

[00143] A wearable fluid delivery system comprising a push bar linkage driving a diaphragm pump with a replaceable cartridge and pump seal.

[00144] A wearable fluid delivery system comprising push bar hydraulic master/slave bellow(s), or rolling diaphragm(s), or piston(s), driving it to lift the cartridge (and actuate a plunger pump), with a segmented chain or other flexible element in compression to actuate the pump remotely with a push bar. [00145] A wearable fluid delivery system comprising push bar driven, scissor lifting links or lifting link analysis.

[00146] A wearable fluid delivery system comprising a replaceable fluid cartridge .

[00147] A wearable fluid delivery system comprising a push bar roller wedge lifter dispenser with a 15ml airless piston replaceable cartridge.

[00148]

[00149] A wearable fluid delivery system comprising a PEZ-like dispenser with sanitizing gel inside friable capsules. Dispensing of gel may be initiated, automatically, or by an annunciator alert (visual, audible, vibration, e.g., delivered to the user through the dispenser or a user’s tethered mobile phone app or local beacon that detects the presence of the dispenser) based on a signal received from a local beacon. The signal may be a function of various conditions, (people density, likelihood of disease transmission, type of business, whether surfaces were touched (door handles), etc.

[00150] A dispenser comprising a clear portion, or the entirety of the dispenser my comprise a clear or translucent window (or open aperture) to permit observation of the cartridge with clear or translucent sight glass to determine remaining liquid in the cartridge, and/or to permit observation of cartridge identifier label (type of fluid, scent, etc.).

[00151] A dispenser comprising LED lights (decorative or status indicating), passive reflectors, visible on or through the exterior of the dispenser via apertures or clear or translucent windows.

[00152] A wearable fluid delivery system may comprising a physical projection (‘Push Bar Guard’) on the dispenser enclosure that prevents the push bar from being actuated unintentionally when the dispenser is in contact with a flat surface such as a wall, a floor, or a tabletop.

[00153] A wearable fluid delivery system may comprising a push crank high bar lifter dispenser, with a pump stroke adjustment method to adjust liquid dispense volume (‘dose’) by means of a threaded travel stop with a lever (which may be recessed) or recessed knob on the underside.

[00154] A wearable fluid delivery system may comprising a push bar lifter dispenser, compact, comparison of equivalent cross-sectional areas between 29mm diameter cylindrical cartridge and rectangular (prismatic) cartridge cross sections for preferred aspect ratio, ‘thin’ section.

Conclusions. [00155] Although specific embodiments have been described, various modifications, alterations, alternative constructions, and equivalents are also encompassed within the scope of the disclosure. Although embodiments of the present disclosure have been described using a particular series of transactions and steps, it should be apparent to those skilled in the art that the scope of the present disclosure is not limited to the described series of transactions and steps.

[00156] The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense. It will, however, be evident that additions, subtractions, deletions, and other modifications and changes may be made thereunto without departing from the broader spirit and scope.