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Title:
METHOD AND APPARATUS FOR REMOVING AND REPLACING BULB OF PUSH-BUTTON TYPE ELECTRICAL SWITCH
Document Type and Number:
WIPO Patent Application WO/2005/089233
Kind Code:
A2
Abstract:
A tool (100) for use in removing and replacing a bulb (70) of a push-button type actuatable switch (24) comprises a tool body (102) having a first end defining a bulb-accepting opening (114). A plurality of tines (116) surround at least a portion of the opening. When the tines (116) are in a first position, the opening is sufficiently large to accept a bulb (70). When pressed inwardly, the tines reduce the size of the opening and engage a bulb (70) located therein. Movement of a sleeve (120) over the outside of the body presses the tines (116) inwardly. In one embodiment, a flexible sleeve is located in the opening for gripping and protecting a bulb (70). A stop extends into the insert limiting the extent to which a bulb (70) may be pressed into the tool (100). An opposing end of the tool may include a prong or blade (104) for engaging and removing a lens cover over a bulb.

Inventors:
COLE JOSEPH W
MOU OLIVER C
Application Number:
PCT/US2005/008269
Publication Date:
September 29, 2005
Filing Date:
March 11, 2005
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
COLE IND INC (US)
International Classes:
H01H9/12; H01H9/16; H01H13/02
Foreign References:
US6257095B12001-07-10
US5809850A1998-09-22
US4663996A1987-05-12
US1514814A1924-11-11
Attorney, Agent or Firm:
Weide, Scott R. (7251 West Lake Mead Blvd., Suite 53, Las Vegas NV, US)
Download PDF:
Claims:
CLAIMS OF THE INVENTION I CLAM:
1. Atoolforusein removing and replacing abulb of a pushbutton typeactuatable switch comprising: atool body, saidtoolbody having a first end defining a bulbaccepting opening, saidbody defining a plurality of tines, eachtine separated from each other tineby at least one slot, said tines defining at least aportionof said opening, a compressible bulb engaging insert located insaid opening, said tines configured tomove inwardly and outwardly to selectively compress said insert against abulb positioned insaid insert, said tines biased outwardly to a position in which said insert will accept said bulb; and a sleeve, said sleeve configured for movement between a first position in which said tines are permitted tomoveto their outward position anda second position in which said sleeve moves said tines inwardly and compress said insert against a bulb positioned in the insert.
2. The tool in accordance with Claim 1 wherein said body defines four tines.
3. Thetoolin accordance with Claim 1 wherein said sleeve comprises an annular member movably mounted on said body.
4. Thetoolin accordance with Claim 1 wherein saidbodyhas a second end, said second endhavingprojection extending therefrom, saidprojection configuredto engage alens cap extending over said bulb.
5. The tool in accordance with Claim 4 wherein said projection comprises a prong.
6. Thetoolin accordance with Claim 5 wherein at least a portion of said prong extends perpendicular to an axis extending through said body from said first end to said second end.
7. The tool in accordance with Claim 1 wherein said body comprises a generally cylindrical wall defining a hollow interior, said tines formed from a portion of said wall.
8. ThetoolinaccordancewithClaim7whereinsaidopeningcomprises at leastaportion of said hollow interior.
9. Thetool in accordance with Claim 1 wherein said compressible insert comprises a sleeve defining a bulbaccepting opening.
10. Thetoolin accordance with Claim 9 wherein said bulbaccepting opening insaid sleeve comprises a passage extending through said sleeve, said passage having a first endanda second end, said first end facing outwardly for accepting abulb and said second end located insaidbody of said tool, and including a stop, said stop extending into said passage from said second end thereof.
11. Thetoolin accordance with Claim 10 wherein said stophas abase connected to said body of saidtoolandarod extending outwardly therefrom, at least aportion of saidrod located insaid passage through said sleeve.
12. The tool in accordance with Claim 11 wherein said rod has a free end positioned outwardly fromsaid base, saidfree end having reduced outer dimension compared to the portion of said rod connected to said base.
13. Atoolforuseinremovingandreplacing abulb of a pushbutton type actuatable switch comprising: atool body, saidtoolbody having a plurality of tines located at a first end thereof, eachtine separated fromeach other tineby at least one slot, said tines defining an opening, a compressible bulb engaging insert located insaid opening, saidinsertdefiningabulbacceptingopening, said tines biased away from said insert into a first position andsaid tines selectively movable inwardly into a second position in which said tines compress said insert whereby said insert will securely engage abulb positioned in said insert; abulb stop, at least aportion of saidstop located insaid bulbaccepting opening of said insert, said stop configured to limit the depth a bulb may be inserted into said bulbaccepting opening; and a slider, said slider configured for sliding movement along saidbody between a first position in which said tines are located in their first position anda second position in which said slider presses said tines inwardly andsaid tines compress said insert against abulb positioned insaid bulbaccepting opening.
14. Thetoolin accordance with Claim 13 wherein saidbodyhas a second end, said second end having projection extending therefrom, saidprojection configured to engage alenscap extending over said bulb.
15. The tool in accordance with Claim 14 wherein said projection comprises a prong.
16. Thetoolin accordance with Claim 15wherein at leastaportionofsaidprongextends perpendicular to an axis extending through said body from said first end to said second end.
17. The tool in accordance with Claim 13 wherein said body comprises a generally cylindrical wall defining a hollow interior, said tines formed from a portion of said wall.
Description:
METHOD AND APPARATUS FOR REMOVING AND REPLACING BULB OF PUSH-BUTTON TYPE ELECTRICAL SWITCH

FIELD OF THE INVENTION [0001] The present invention relates to atool for use in replacing thebulb of a push-button type electrical switch. BACKGROUND OF THE INVENTION [0002] Push-button type switches are utilized in thousands of applications. One common application for push-button switches isasan input device fora gaming machine. For example, agamingmachine may include aplurality of push-buttons permitting auserto indicate a input, suchasto "hold" a card, place a "bet" of a monetary amount, "deal" cards or the like. [0003] In many instances, gaming machines are located in areas of reduced illumination. The reduced illumination makes it easier for a player ofthegameto view information presented ona video display ofthe gaming machine. Onthe other hand, the reduced illumination makes it difficult for a player to observe other aspects of the gaming machine, such as the location of push-buttons. As a result, these gaming machine generally include a lamp for illuminating a push-button thereof. [0004] Aproblemwiththese switches is thatthelifeofthebulb or lampis significantly less thanthat of the switch, forcing the operator to either replace the switch whenalamp burns out, orto replace burned out lamps several times during thelifeof a switch. Generally, however, itis very difficult to replace thelampof sucha switch. Generally, the entire switch mustbe removed fromthe housing to access thebulb, or at least a bottom portion of the switchmustbe access to access thebulb. Thismay require access to the interior of the gaming or other machine. [0005] An improved system for removing and replacing lamps associated withsuch push-button switches is desired. SUMMARY OF THE INVENTION [0006] The present invention islamporbulb removal toolforusein removing and replacing alamp of a push-button switch. Thetoolhas a first end which defines abuϊb-accepting opening. A plurality of tines surround at least aportionofthe opening. The tines are movable. Ina first position, the tines are preferably biased outwardly and the opening is sufficiently large to accept abulb therein. In a second position, the tines are pressed inwardly, reducing thesizeofthe opening and engaging abulb therein. [0007] Inone embodiment, a slider or sleeve is mounted onthe tool. In a first position, the slider is retracted fromthe tines, allowing themtobe biased outwardly. Ina second position, the slider is positioned over the tines, pressing them inwardly. [0008] Inapreferredembodiment,acusMonmginsert is located inthe bulb-accepting opening. The insert definesanopeningorpassageforacceptingthebulb. Whenthetinesarepressedinwardly,the insert is compressed, gripping thebulb tightly. Astop extends intothe insert. Thestop limits the travel of the bulb into the insert. [0009] Inuse, the end of the tool is placed over abulb tobe removed. Whenthe tines arein their first or outward position, the tool maybe lowered onto or overthe bulb. The distance by which the tool may be placed over the bulb may be limited by the stop. [0010] To remove the bulb, the tines are pressed inwardly, suchasby moving the slider downwardly along thebody overthe tines. Asthe tines move inwardly, they engage thebulb or compress the insert (when one exists) againstthe bulb. Upward movement ofthetool then causes thebulb tobe extracted from its socket. When the tines are released, the bulb may easily be removed from the tool. [0011] A replacement bulb may be located in the socket in reverse sequence. [0012] Inone embodiment, thelamp removal toolis specifically configured forusein removing a lampof a push-button switch having a removable lenscap covering the lamp. Inone embodiment, the second end of the tool has a prong or blade extending therefrom. The end of the head is engaged against a bottom edgeof thelens cap or aslot formed therein. Upward pressure withthehead causes the lens cap to disengage from the body of the push-button switch, permitting access to the bulb beneath. [0013] Further objects, features, and advantages of the present invention over the prior art will become apparent fromthe detailed description of the drawings which follows, when considered with the attached figures. DESCRIPTION OF THE DRAWINGS [0014] FIGURE 1 is asideviewofapush-buttonelectricalswitchoftheinventionmounted to a support structure in the form of a gaming machine housing; [0015] FIGURE 2 is an exploded view of the push-button electrical switch illustrated in Figure 1 ; [0016] FIGURE 3(a) is a cross-sectional view of a body of the push-button electrical switch illustrated in Figure 1 along with a portion of an engaged lamp/switch mount connected thereto; [0017] FIGURE 3(b)is a perspective viewof thebody pfthe push-button electrical switchlooking in a direction from a bottom end towards a top end thereof; [0018] FIGURE 4is aperspectiveviewof a lamp/switch mount of the push-button electrical switch ofthe invention; [0019] FIGURE 5 is a cross-sectional view of the push-button electrical switch illustrated in Figure 1 taken along a plane perpendicular to the support structure; [0020] FIGURE 6 illustrates atoolin accordance withthe invention utilized to remove alens cap in accordance with an embodiment of the invention; [0021] FIGURE 7 illustrates the tool of Figure 6 utilized to remove abulb of the push-button electrical switch of the invention; [0022] FIGURE 8 is aperspective viewof anendof another embodiment of alamp removal tool in accordance with the invention; and [0023] FIGURE 9 is a cross-sectional side view of the lamp removal tool illustrated in Figure 8. DETAILED DESCRIPTION OF THE INVENTTON [0024] The invention is amethodand apparatus forremovingand replacing thebulb orlamp of a push-button type electrical switch. Inthe following description, numerous specific details areset forth in order to provide amore thorough description ofthe present invention. Itwillbe apparent, however, to one skilled inthe art, thatthe present invention maybe practiced without these specific details. In other instances, well-known features have not been described in detail so as not to obscure the invention. [0025] In general, the invention is tool which is useful in replacing thebulb of a push-button type electrical switch. Sucha switch mayhaveavarietyofconfigurations. Inone embodiment, the switch includes a push-button for actuating an electrical switch. The push-button electrical switch has abulb or lamp for illuminating a portion of a body or housing of the push-button electrical switch. [0026] A push-button electrical switch 20ofthetypethetool ofthe invention is useful withwill first be described generally with reference to Figure 1. As illustrated, the push-button electrical switch 20 maybe mounted to a support structure. As illustrated, the push-button electrical switch 20is mounted to a support structure, suchas a panel or housing 22of a gaming machine. In general, the push-button electrical switch 20 includes apush-buttonlens cap24 extending fromatop portion or endof abutton bodyor housing 26. Thebodyor switch includes an adapter 28 andlocknut30. As illustrated, the adapter 28 and locknut 30 are associated with an exterior portion of thebody 26. The adapter 28 maybe formed integral withthebody26. A lamp/switchmount 32is connected tothebody26 and extends from a bottom portion or end thereof generally opposite the push-button lens cap 24. An electrical switch 34 is connected to the lamp/switch mount 32. [0027] Inthe arrangement illustrated, the housing 22 comprises a metal panel forming a portion of abody or housing ofthe gaming machine. The housing 22has an aperture therethrough. Preferably, thebody26extendsthroughthe aperture. The aperture is larger thanthe portionofthebody26 which extends therethrough, butis smaller in dimension thanthe adapter 28. The adapter 28 is positioned overthebody 26 adjacent atop side ofthe housing 22, obscuringthe aperture through which thebody extends. The locknut 30 is affixed to thebody 26 from the bottom side ofthe housing 22. In this manner, the housing 22 is positioned between the adapter 28 andthelocknut 30, securing the push¬ button electrical switch 20 to the housing 22. [0028] As detailed below, the push-button lens cap 24 extends outwardly fromthebody 26 for engagement byauser thereof, suchasby a player ofthe gaming machine. When depressed or pushed by a user, the push-button lens cap24is arranged to activate/actuate the electrical switch 34. Leads extend fromthe electrical switch 34, and wires maybe connected to the leads and extend to another device, whereby the signal from the electrical switch 34 is used as an input to that device. [0029] The components and construction of the push-button electrical switch 20 will now be described in detail. As illustrated in Figure 2, thebody26 serves a supporting/housing function and includes awall having inner and outer surfaces. Inone embodiment, thebody26 is generally tubular andhas a top or proximal end 36 and a bottom or distal end 38. A passage 40 extends through the body 26. As illustrated, atits top end36, thebody 26 is generally square, thus defining a generally square periphery of the passage 40. Thebody 26mayhavea variety of other shapes atthis location, such as round or rectangular. Preferably, thebottom endof 38 of thebody 26is generally cylindrical, thus defining a generally circular periphery of the passage 40 at that location. [0030] Inone ormore embodiments, an outer surface ofthebody 26 is threaded atits bottom end 38. The threads extend upwardly towards thetop end 36. The threads are adapted to accept mating threads on the lock nut 30. [0031] Referring to Figures 3(a) and 3(b), thebody 26 defines an upper cavity 42 for accepting at least aportionof the push-button lens cap 24. The upper cavity42 forms aportionof the passage 40 through thebody26. As illustrated, whenthe push-button lens cap 24is generally square in peripheral shape, so is the upper cavity 42. As described above, thebody 26 defines a periphery around the upper cavity 42 which is also generally square. As illustrated, thebody 26 includes an outwardly extending flange 44 inthis location. As noted above, the push-button lens cap 24 maybe other than square, in which case the body 26 at this location is as well, for example round or rectangular. [0032] A middle cavity 46 is positioned below the upper cavity 42 andalso forms aportion of the passage 40. The middle cavity 46 is preferably cylindrical in shape, andhas a diameter which isless than the maximum dimension of the upper cavity 42. As a result of the change in size and shape between the upper and middle cavities 42,46, a ledge 48 is defined. As detailed below, the ledge 48 serves as astop to limit the travel of the push-button lens cap24 downwardly into thebody 26, and serves as a support for a spring. [0033] A lower cavity 50 is positioned below the middle cavity 46 andalso forms aportionof the passage 40. The lower cavity 50is also preferably generally cylindrical in shape. As illustrated, astop extends inwardly dividing at least aportionofthe middle and lower cavities 46,50. Referring to Figure 3(b), the stop comprises four wall or stop segments 51. [0034] As described above, a push-button lens cap 24 is associated with the body 26, and preferably is located at the top end 36 thereof. At least a portion of the push-button lens cap 24 is adapted to extend fromthetop end 36 of thebody 26 for engagement by auser. Referring to Figure 2, the push-button lenscap24 comprises a generally square member having atop surface andoneor more sides ormembers extending downwardly therefrom. The push-button lenscap24mayhavea variety of other shapes, including rectangular and circular. [0035] The push-button lens cap 24 is associated withan actuator 52. The actuator 52 has a first end shaped to accept the push-button lens cap 24 there over. Whenthe push-button lens cap 24 is square, preferably so isthe first endof the actuator. Likewise, whenthe push-button lens cap 24has other shapes suchas rectangular or circular, the first endofthe actuator 52 maybe as well. Notably, the first end of the actuator 52 and the push-button lens cap 24 neednotbe the same shape, as long as the connecting function between the two is facilitated. As illustrated, one or more tabs 53 are located onthe outside of the first end of the actuator 52 forusein securing the push-button lens cap 24 to the actuator 52. [0036] The actuator 52has a generally cylindrical main portion adapted tofit within the middle cavity 46 of thebody26. Preferably, threelegs 54a,b,c extend downwardly fromthe periphery ofthemain portion ofthe actuator 52ina direction opposite its first end. Apair ofthelegs 54a,54care preferably located about 180 degrees apart. The third leg 54b is positioned there between. As illustrated, the third leg 54b is preferably located nearer one of the legs 54c than the other of the legs 54a. [0037] The opposing legs 54a,54ceachhave a catch 56 extending outwardly therefrom. Preferably, each catch 56 extends in a direction generally radially out in a direction perpendicular to an axis extending through the actuator. Referring to Figure 1 , whenthe actuator 52is positioned inthebody 26, thelegs 54a,b,c extend through the spaces between the stop segments 51 of thebody26. When so positioned, the catches 56 engage a lower rimofthebody26, preventing further upward movement of the actuator. [0038] A foot 58 is located ontheendofthe third leg 54b. As described inmore detail below, the foot 58 is adapted to engage abuttonofthe electrical switch 34for actuating the switch. As illustrated, the foot 58 extends radially inward from the third leg 54b. [0039] A spring 60 is positioned inside of the body 26 and engages both the body 26 and the actuator 52. Ina preferred embodiment, the spring 60is a helical spring. A first endof the spring 60 rests against thetop surface ofthestop segments 51 ofthebody 26. The second endofthe spring 60 is positioned within the actuator 52 and rests against astop 61 therein. So arranged, the spring 60has the natural tendency tourgethe actuator 52 upwardly to the point where further upward travel is limited by the catches 56. The urging of the actuator 52 upwardly also urges the push-button lens cap 24 attached thereto upwardly. When pressed by a user, the push-button lens cap 24 moves the actuator 52 downwardly against the biasing force of the spring 60, compressing the spring. [0040] The lamp/switch mount 32 is connected to the body 26 at its bottom end 38. The lamp/switch mount 32 willnowbe described in detail with reference to Figure 4. The lamp/switch mount 32has a generally disc-shaped main portion 62. Themain portion 62has three cut-out areas 64a,b,c permitting passage of the legs 54a,b,c of the actuator 52 therethrough. [0041] A passage 66 extends generally centrally through (i.e., along a central axis extending generally perpendicular to a plane in which themain portion 62 extends) themain portion 62. Alamp stand 68 extends upwardly fromatop surface ofthemain portion 62 and downwardly froma lower surface of themain portion, defining a generally lower closed end. In general, thelamp stand 68 forms extended portions of the passage 66 for accepting therein abulb or lamp 70 (see Figure 2), i.e. alamp socket. First and second contacts 72a,b are also located in the passage 66. The first and second contacts 72a,b contact leads or contacts onthelamp 70. The contacts 72a,b extend through the lower closed end of the lamp stand 68 for connection to appropriate power wires for powering the lamp. [0042] A switch mount 74 extends below themain portion 62 ofthe lamp/switch mount 32. The switch mount 74is offset fromthe central axis. Inone embodiment, the switch mount 74 extends from the lamp stand 68. The switch mount 74 includes first and second spaced pins 76a,b. A lock 78 extends downwardly from themain portion 62. The lock 78 is spaced apart from thepins 76a,b, defining a space in which the electrical switch 34 may be located. [0043] Referring to Figure 2, the electrical switch 34 has a generally closed housing 80. The electrical switch 34mayhavea variety of shapes and configurations. As illustrated, thehousing 80is generallyrectangular. First and second passages 82a,82b extend through the housing 80 from sideto side. The passages 82a,b are adapted to accept the first and second pins 76a,76b of the lamp/switch mount 32. [0044] A button 84 extends upwardly from a top surface of the housing 80. The button 84 preferably actuates an electrical switch within the electrical switch 34. Inone embodiment, the electrical switch 34is a two-position switch. The workings of such electrical switches 34 are well known. As is common insucha two-position electrical switch 34, the electrical switch 34 includes three leads or contacts 86a,b,c. The position ofthe electrical switch 34 determines which ofthe leads are "hot" (one being for ground). [0045] Referring to Figure 5, whenthe electrical switch 34is mounted to the lamp/switch mount 32 thepins 76a,b extend into the passages 82a,b. Thelock78 presses against the opposite side of the housing 80 of the electrical switch 34, maintaining thepins 76a,b in engagement withthe passages 82a,b, securely mounting the electrical switch 34. [0046] When so mounted, the foot 58 of the second leg 54b of the actuator 52 is positioned adjacentthe button 84 of the electrical switch 34. Whenauser depresses the push-button lens cap 24, the actuator 52 is moved downwardly, causing the foot 58 to engage the switch button 84. This actuates the electrical switch 34. [0047] Most importantly, in accordance with the invention there is provided an advantageous mounting arrangement for removably connecting the lamp/switch mount 32tothebody26. Referring to Figures 3(a) and 3(b), first and second latches 88,90 extend from the bottom end 38 of thebody 26. Thelatches 88,90extendfromthestopsegments51 ofthebody26. Eachlatch 88,90 generally comprises amember extending outwardly fromthestop segment and includes a catch. As illustrated, the latches 88,90 arepositioned generally 180 degrees apart, withthe catches facing generally inthe same direction. [0048] The lamp/switch mount 32 includes a passage 92 through themain portion 62. The passage 92 accepts the latch 90 therethrough. A cut-out or recess 94is provided inthe periphery ofthemain portion 62 of the lamp/switch mount 32. [0049] Referring to Figure 3(a), the lamp/switch mount 32 is arranged tobe mounted in abutting relationship to the stop segments 51 atthe bottom end 38 of thebody 26. Thetop surface ofthemain portion 62 of the lamp/switch mount 32 is abutted against the lower surface of the stop segments 51 ofthebody26. Inthisposition,thelatch90extendsthroughthepassage92inthelamp /switchmount 32, withthe catch ofthe latch 90 engaging the lower portion of themainportion62 ofthe lamp/switch mount 32. Atthesame time, the latch 88 extends along the cut-out area94inthemain portion 62 of the lamp/switch mount 32, withthe catch thereof also engaging the lower portion ofthemain portion 62 of the lamp/switch mount 32. [0050] Preferably, as illustrated in Figure 3(a), the latches 88,90 are arranged to press the lamp/switch mount 32both upwardly against thestop segments 51 , and radially outwardly against the inside wall ofthebody26 atits bottom end 38. Importantly, the latches 88,90 are slightly flexible, permitting ausertobendthemoutof engagement withthe lamp/switch mount 32, thereby permitting the lamp/switch mount 32 to be removed from engagement with the body 26. [0051] Inoneormore other embodiments, other means maybe provided for removably securing the lamp/switch mount 32 to thebody 26. Preferably, the securing means includes at least one member whichisaccessiblebyauserfor manipulation in unlockingorremovingtheIamp/switchmount32from thebody 26. There maybe only a single latch ormorethanone latch. Thelatch(es)may engage the lamp/switch mount 32 in a variety of manners. For example, the lamp/switch mount 32 neednot include passages or cutout areas. The lamp/switch mount 32may include a trough inthe lower surface orinaside surface for engagement by a portion (such as a catch) of thelatch(es). Inone embodiment, a threaded rodmay extend fromthebody26 and through a passage/slot inthe lamp/switch mount 32. A nut may be threaded onto the rod to engage the lamp/switch mount 32 with the body 26. [0052] Inone embodiment, the latches 88,90may extend formthewall forming thebody26 instead of or in addition to the stop segments 51. In another embodiment, rotating lock members may be associated withthebody 26 andmovedinto a locking position whenthe lamp/switch mount 32 is pressed into engagement therewith, and rotated out of the locking position to permit removal/disconnection ofthe lamp/switch mount 32 from thebody 26. In general, itis desired that a release for the locking mechanism be accessible to the user. [0053] Thevarious components ofthepush-button electrical switch 20 maybe constructed from a wide range of materials. Inone embodiment, the push-button lens cap 24, actuator 52, body 26, adapter 28 ,locknut30, and lamp/switch mount 32 comprise plastic or a similar material conveniently constructed in a molding or extrusion process. The contacts 72a,72b and spring 60 preferably comprise metal members. Inoneormore embodiments, the various components mayhavea variety of colors. [0054] hione embodiment ofthe invention, atleastaportionofthebody26 around the push-button lens cap24is arranged to illuminate orbe illuminated. Inthis manner, the location ofthe push-button lens cap 24 maybe easily identified by auser. Inapreferred embodiment, thebody26 is constructed froma transparent or generally transparent material, suchas clear plastic, instead of traditional black polypropylene. Light emittedbythe lamp 70passesthroughmebody26,merebyillurninatingthebody 26, including the peripheral portion thereof at the top end 36 around the push-button lens cap 24. [0055] Inone embodiment, to provide significant contrast between the push-button lens cap24 and thebody26, the push-button lens cap24is arranged to generally not transmit light emitted bythelamp 70. Inone embodiment, the push-button lens cap24 maybe constructed of an opaque material. In another embodiment, a shield, suchas plastic plate, maybe located within the push-button lens cap24. Inthis embodiment, the push-button lens cap24is generally not illuminated, butthesurroundingbody 26is, whereby the illuminatedbody26 generally serves to identify the extent/location ofthe push-button lens cap 24. In apreferred embodiment, as illustrated in Figure 2, a legend plate 96 is located inside of the push-button lens cap 24. The legend plate 96 may have lettering printed thereon which is readable through the push-button lens cap24. For example, the legend plate 96 maybe printed with "deal/draw," "betone"or other words, numbers or symbols. Inone embodiment, the legend plate 96 permits light illuminated by thelamp 70 topass therethrough to render the lettering or other printing more visible. For example, the legend plate 96 maybe aplastic plate of any of a variety of colors (even clear) having printing, such as black or other colored lettering. [0056] In accordance with another aspect ofthe invention, the push-button electrical switch 20 is arranged to divert or ground electro-static discharge (ESD). In one or more embodiments of the invention, one or more of the components of the push-button electrical switch 20 are adapted to conduct electrical energy to the housing 22 ofthe gaming machine or other support structure or remote location, and away from the circuitry of the lamp 70 and electrical switch 34. [0057] hione embodiment, as illustrated in Figure 5, apathof electrical conductionPis defined from an external portion ofthe push-button electrical switch 20to the housing 22 or other grounding element. Inoneormore embodiments, this pathway is defined by an electrically conductive material located in the push-button electrical switch20. Inone embodiment, thebody26, adapter28, and/or locknut30 are constructed from plastic having a conductive carbon material 96 interspersed therein (see Figures 3Aand5). The interspersed conductive carbon 96 defines a pathway through the component to the housing 22 or other ground. Preferably, sufficient conductive carbon is provided thatthepathof least resistenceto the electrical energy is defined through the component to ground rather than through the component to the electrical switch 34 or lamp 70, and thereon to the associated circuitry. [0058] It willbe appreciated that inorderto provide an effective pathway P to ground, thehousing 22 or other supporting structure mayneedtobe specially configured. Inone embodiment, the housing 22may comprise ametal panel which is painted (such as powder coated). Insuchan embodiment, it is preferred that an area of contact be provided between thebody 26, adapter 28, locknut 30 or other component of the push-button electrical switch 20 directly with the metal of the housing 22. [0059] Inone embodiment, a metal strip orthelike maybe connected to the push-button electrical switch 20, suchas sandwiched between the adapter 28 and housing 22 orlocknut 30 and housing 22, with the metal strip extending to ground. [0060] In another embodiment, the pathway P through the push-button electrical switch 20 to ground may comprise other than dispersed particles 96. Inone embodiment, awire maybe embedded in thebody 26 and extend from a top outer surface thereof to an contact with ground, such as the interface with the housing 22. Other interspersed materials may be used. An advantage of the interspersed material is thatthe location or proximity ofthe user' s touch or approach tothe push-button electrical switch 20neednotthen coincide witha specific location of thepathto ground (asinthecase of an embedded wire), since multiple paths to ground are provided. [0061] In other embodiments, a layer of conductive material maybe located ontheoneormore components ofthe push-button electrical switch 20. For example, athin layer of conductive metal may be deposited on the exterior of the body 26 and/or adapter 28. [0062] In one embodiment, the push-button lens cap 24 may be conductive, hi such event, it is desired thatthe actuator 52be insulating so that electrical energy is transferred fromthe push-button lens cap 24 through the body 26 to ground, and not to the switch/lamp circuits. [0063] Assembly and use of the push-button electrical switch 20 of the invention will now be described. Referring to Figure 2, thelamp 70is installed intothe lamp/switch mount 32 along withthe contacts 72a,b. The electrical switch 34 is connected to the lamp/switch mount 32. [0064] The push-button lens cap 24is connected to the actuator 52. The spring 60 is inserted into the top end 36 of the body 26 and the actuator 52 is guided over the top end of the spring. The actuator 52is pressed downwardly, compressing the spring 60 until the catches 56 ofthelegs 54a,54c of the actuator 52 engage the bottom end 38 of the body 26. [0065] The lamp/switch mount 32 is then connected to thebody 26. As described above, the lamp/switch mount 32is aligned withthelegs 54a,b,cand latches 88,90 andis pressed upwardly. The legs 54a,b,cextend through the recesses 64a,b,cinthelamp/switchmount32. Thelatch90 extends through the passage 92, and the latch 88 extends along the cut-out 94. Upon further upward movement, the catches onthe latches 88,90 extend overthebottom surface ofthemain portion 62 of the lamp/switch mount 32, locking it to the body 26. [0066] The push-button electrical switch 20 maybe conveniently mounted to the housing 22. First, the adapter 28 is extended over the bottom end 38 of thebody 26 and is moved upwardly as far as possible. Next, the bottom end38 ofthebody26is passed through an aperture inthe housing 22 until the adapter 28 rests uponor abuts the housing 22. The locking nut30isthen engaged withthe threads onthe outer surface ofthebody26 fromthe bottom end38. The locking nut 30is threaded upwardly until it engages the housing 22. [0067] Appropriate wiring (not shown) is attached to the contacts 72a,72b for providing power to the lamp 70. Appropriate wiring (not shown) is also attached to the leads 86a,b,c of the electrical switch 34. [0068] Inuse, auser depresses the push-button lens cap 24. The push-button lens cap 24 moves the actuator 52 downwardly against the force ofthe spring 60. Sufficient downward movement causes the foot 58 of the leg 54b to engage the switchbutton 84, actuatingthe electrical switch 34. Upon release ofthe user-applied pressure or force, the spring 60 moves the actuator 52 and push-button lens cap 24 upwardly. [0069] A significant advantage of the push-button electrical switch 20 is that an electro-static discharge(ESD)fromtheplayerisroutedawayfromthecircuitryofthe push-buttonelectricalswitch 20, avoiding many problems. In accordance withthe invention, whena player touches (or comes sufficiently close to the push-button electrical switch 20 thata discharge may arc through the air space andbridge to the switch) the push-button electrical switch 20, the discharged electrical energy is routed to the housing 22 or a remote location, grounding the discharge. Inthe preferred embodiment, the dischargeisroutedthroughthe conductive materialinthebody26, adapter 28 and/orlocknut30to the housing 22. Thispath routes the electrical energy awayfromthelamp circuit orthe switch circuit. [0070] In accordance withthe invention, a push-button electrical switch 20 is provided which is simple to assemble and disassemble. In particular, replacement of thelamp 70is facilitated, hithe event thelamp70 burns outand needs replacing, the lamp/switch mount 32is easily disengaged from thebody 26, providing access to thelamp 70 for replacement, hi order to disengage the lamp/switch mount 32, a user need only bias the catches of the latches 88,90 out of engagement with the Iamp/switchmount32. Then,theusermaymovethelamp/switchmount32 downwardlywithrespect to the body 26 for access to the lamp 70. [0071] As another aspect ofthe invention, the push-button electrical switch 20has an illuminated body 26 surrounding theuser-actuatablepush-button lens cap 24. The illuminated body 26 aids in defining to a user the location of the push-button lens cap 24. [0072] Another aspect of the invention willbe described primarily with reference to Figures 6 and 7. In accordance withthis embodiment of the invention, atool 100 is provided for removing thelens cap 24 of the push-button electrical switch 20 and for removing and replacing the lamp 70. [0073] Referring first to Figure 6, the tool 100 has abody 102. As illustrated, the body 102 is generally rodor cylinder shaped. Thebody 102mayhavea variety of shapes. Thebody 102 maybe constructed of a variety of materials. Inapreferred embodiment, thebody 102is constructed of metal, such as brass. Other materials, such as stainless steel and plastic, may be used. [0074] Thebody 102has a first end 104 and a second end 106. Inone embodiment, the first end 104 includes a means for removing thelens cap or cover 24. As illustrated, this means comprises a prong, blade orhead 108. Thehead 108 has a first end connected to thebody 102, anda second end positioned outwardly fromthebody 102 for engaging thelens cap 24. As illustrated, thehead 108 is curved, withthe second end oriented at generally a ninety (90) degree angle with respect to the first end. Thehead 108mayhave other shapes. For example, thehead 108may extend outwardly from thebody 102 generally parallel to thebody 102 along an axis therethrough, orthehead 108 maybe straight but extend outwardly from the body 102 at an angle. [0075] In general, the second endofthehead 108 is generally thin, having a thickness muchless than its width. Thehead 108 ispreferablysufficientlyrigidtowithstandtheamountofforcenece ssaryto remove thelens cap24 without deforming or breaking. Thehead 108 maybe constructed of a variety of materials, and is preferably constructed of metal. [0076] Preferably, thehead 108 is sized to engage a notch 110 formed inthe exterior ofthelens cap 24. As illustrated in Figures 2 and 6, thelens cap24is preferably formed withoneormore notches 110 located inthe exterior thereof. Inthe embodiment illustrated, notches 110 are formed inallfour sides of the lens cap 24. In other embodiments, notches 110 may be formed in fewer of the sides. [0077] Inone embodiment, each notch 110 comprises a recessed areainthe surface ofthelens cap 24. The notch 110 may be formed when the lens cap 24 is molded or may be machined into the surface of thelens cap 24. Though the notch 110 may extend entirely through thelens cap 24, it is preferably formed onlyinthe surface. Inthis manner, no passages are formed inthelens cap 24 which would permit dirt, liquid or the like to pass into the interior of the push-button switch. [0078] As illustrated, each notch 110 is formed as an elongate slotinthelens cap 24. Each notch 110is preferably located onthelens cap 24ina position where the notch 110is accessible whenthe push-button electrical switch 20 is assembled. In particular, each notch 110 is located a sufficient distance vertically above the bottom edgeof thelens cap 24 so thatitis accessible above thetop of thebody 26. It is desired, however, that each notch 110 be located close to thebody 26 when the push-button electrical switch 20is assembled so thatthe notch 110isnot so apparently visible to the user of the push-button electrical switch 20. [0079] In this configuration, it willbe appreciated thatthe size of thehead 108 of the tool 100 is selected so thatit will engage the notch 110,both when considering the height and width of the notch 110. Preferably, the height of the notch 110is slightly greater thanthe thickness of thehead 108. In addition, it willbe appreciated thatthe depth ofthe notch 110is preferably sufficient to permit thehead 108 tobe located inand engage the notch 110 with sufficient security to permit application of force to the lens cap 24 via the head 108 to permit removal of the lens cap 24. [0080] Inuse, auser engages thehead 108 of thetool 100 with one of the notches 110 inthelens cap 24. The user applies an upward force to the tool 100, and thus the lens cap 24. This force removes thelens cap 24 fromthe actuator 52. In another embodiment, theusermay locate thehead 108 of thetool 100 under or along a lower edge ofthelens cap 24. Upward force pries the lens cap 24 from the push-button switch. [0081] Asdescribed,theactuator52mayincludetabs53. Thesetabs53 engagemating tabs 112 located onthe interior of thelens cap 24. Downward force causes thetabs 112 onthelens cap24to movepastthetabs 53 onthe actuator 52, locking thelens cap to the actuator. Upward force applied by the tool 100 releases the tabs 112 on the lens cap 24 from the tabs 53 on the actuator 52. Of course, thelens cap24may engage the actuator 52in other manners, andthetool 100may similarly be used to disengage the lens cap 24. [0082] Once the lens cap 24 is removed, it maybe replaced with another lens cap 24, such as in the caseof damage. In addition, the interior ofthe push-button switch 20is accessible, including the lamp 70. [0083] Referring to Figure 7, thetool 100is preferably also configured forusein removing thebulb or lamp 70. As illustrated, the second end 106 of thetool 100 is formed as a sleeve, thus defining a bulb-accepting opening or passage 114. In a preferred embodiment, the space or passage 114 is defined at least inpartby a plurality of tines 116 comprising the second end 106 ofthetool 100. The tines 116are separatedbylongitudinalslots 118,permittingthetines 116tomove independently ofone another. [0084] Inthe embodiment illustrated, the tines 116 and slots 118 extend parallel to thebody 102 of the tool. As illustrated, the tines 116 comprise aportionofthebody 102,butthey maybe separate elements connected to the body 102. [0085] Thenumberoftines 116and their configuration may vary. As illustrated, four tines 116are provided. There may be as few as two or three or more than four. [0086] In their resting or unbiased position, the tines 116 preferably extend radially outward from thebody 102 of the tool 100. In the embodiment illustrated, each tine 116 has a first end which is connected to thebody 102 and a second free end. The second or free end of the tine 116 is located radially outward ofthe first end. Inthis position, the opening or passage 114is large enough to accept a bulb 70, as illustrated in Figure 7. [0087] The tines 116 maybe moved inwardly, thus reducing thesizeof the opening or passage 114 and engaging abulb. Inone embodiment, thetool 100 preferably includes means for biasing the tines 116 into a position in which they engage thebulb 70. As illustrated, a slider 120is mounted onthe exterior of the body 102 of the tool 100. The slider 120 comprises a cylinder or sleeve which is movable along the tool 100. [0088] In one embodiment, a stop 122 is located onthebody 102 towards the first end 104. As illustrated, the stop 122 also serves as a handle when the first end of the tool 100 is being used to remove alens cap 24. As such, the stop 122 comprises amember of increased radial dimension for grippingby auser. The stop 122mayhave a variety of other shapes and sizes, including as theform of atab or ridge extending around thebody 102. Thestop 122 limits the travel ofthe slider 120 along the body 102 in the direction of the first end 104. [0089] Whenthe slider 120 isina retracted position, as illustrated in Figures 6 and7, the tines 116 areintheiruribiasedorrestingposition. Theslider 120maybemoved,however,to a position in which it extends overand engages the tines 116. Insuchaposition,the slider120compressesthetines 116 inwardly. Thus, the slider 120 preferably has an interior dimension sized to permit itto travel overthe main part of the body 102, but engage at least a portion of the tines 116 which extend radially outwardly. [0090] Ausermayutilizethetool 100to remove and replace abulb 70. Oncethelens cap24(if any) is removed, theuser locates the sleeved second end 116 of thetool 100 over thebulb 70. The user then moves the slider 120 downwardly along thebody 102 overthe tines 116. This causes the tines 116 tobe pressed inwardly against thebulb 70, gripping it. Theusermay thenpull thebulb 70 out of the socket. [0091] The user may replace a bulb, such as a burned out or broken bulb, by removing it and replacing thebulb withanewone. Thenewbulbmaybe installedbylocateditinthetines 116, locking it into place with the slider 120, and then pressing the bulb into the socket 68. [0092] The configuration of the push-button electrical switch 20 andthetool 100 of the invention has numerous advantages. In the prior art, replacement of the bulb required, as in the case of an installation suchas that illustrated in Figure 5 , access tothebulb mount. As illustrated, thebulb mount maybe located under the mounting surface, such as a metal panel. Access to the underside of the mounting panel maybe difficult. For example, ifthemountingpanel comprises ametalwallof a gaming machine, access to the underside requires access to the interior of the gaming machine. In order to prevent tampering andto comply with gaming laws, thismay require that only particular authorized personnel openthe gaming machine. Thus, maintenance ofthe machine maybe delayed or maybe expensive. [0093] Of course, thetooloftheinventionmayhavea variety of alternate configurations. First, more thanonetoolmay provide the functionality described. For example, onetoolmayhavethe prong and a second, separate tool the bulb-engaging sleeve. The orientation of thehead and sleeve may vary. For example, thetool maybe "L"-shapedandhave these components attheends thereof. Thehead and sleeve maybe detachable fromthebody of the tool. For example, the toolbody may define a housing or space at each end. The head may be connected to a shaft which in one position is connected to thebody so thattheheadis located inside the space, andin another where the position of the shaft is reversed and connected to thebody so that the head is accessible. The sleeve may similarly be connected to a separate element which can be connected to the body. [0094] The head of the tool may be retractable. For example, the head may be connected to a button which maybe moved linearly, permitting theheadtobe retracted into a space within thebody or extended outwardly therefrom for use. [0095] Thetoolofthe invention could alsobe configured to engage morethanone portion ofthelens cap. For example, a first endofthetool could be configured as apair of movable calipers each having a head for engaging notches on opposing sides of the lens cap. [0096] The lens cap may also include a feature other than a notch for engagement with atool or other element in application of force to remove it. For example, arib or ridge could extend outwardly fromthe outside ofthelens cap. Theheadofthetool could thenbe positioned under therib or ridge andthe upward force be applied to therib or ridge. This embodiment has the disadvantage, however, thattherib or ridge may interfere withthe normal travel ofthe button up anddownwith respect tothe body of the push-button switch. [0097] The configuration of the tines may also vary. For example, the tines could be mounted for rotation relative tothebodyina can-type configuration. When rotated to one position, the tines might rideover an enlarged portion ofthe body, forcing them outward. When rotated to a second position, the tines may then retract. [0098] Another embodiment of a tool 200 of the invention is illustrated in Figures 8 and 9. As illustrated in Figure 8, alamp removal tool200 once again has anend which is defined by a plurality of tines 216. As illustrated, four tines 216 are separated by slots 218. The tines 216 may move inwardly and outwardly as described above. The tines 216 surround and define anopenend222 of the tool. [0099] As illustrated, a sleeve 220 is located inthe hollow openend222 of thelamp removal tool 200. The sleeve 220 is preferably a soft, high-friction member for engaging a bulb. In one embodiment, the sleeve 220is constructed of rubber or foam, andthusis compressible and/or flexible. [0100] Inone embodiment, the sleeve 220has a generally cylindrical shape. Referring to Figure 9, the sleeve 220 has a first end 224 and a second end 226. The sleeve 220 is defined by a wall 228 which has outer surface andan inner surface. The inner surface of the wall228 defines an opening or passage230. Preferably, cross-sectional dimensionofthepassage 230is at least slightly greater than the cross-sectional dimension of a bulb to be used with the tool 200. [0101] As illustrated, inone embodiment, the sleeve 220is mounted to arod232. Therod232 is connected to the tool 200, such as via abase 234. As illustrated, the base 234 is abody which is mounted within thetool200 andwhichis secured thereto. Thebase234may comprise a molded plastic member which is press fit into the tool 200. [0102] Inone embodiment, therod232isa generally cylindrical member which extends fromthe base 234. At least a portion ofthe rod 232 is configured to fit within the passage 230 through the sleeve 220 As illustrated, a free or top end 236 ofthe rod 232 maybe tapered to aid guiding the sleeve 220 onto the rod 232. [0103] Therod232may also serve as a stop. Preferably, therod232 extends into the passage 230 ofthe sleeve 220 a distance which, as described below, limits the distance by which abulb maybe extended into the sleeve 220 from the first end 224 thereof. [0104] Thetool200maybe utilized to remove a bulb, suchas from a push-button switch. Once thelens cap or other covering is removed, theend ofthe tool200is slipped overthebulb. Inso doing, the sleeve 220 is extended over the bulb. The distance by which thetool 200 maybe extended over thebulbis preferably limited, inthat after a short distance thetop ofthe bulbhits theend236 ofthe rod 232. Atthat time, theuser knows thatthetool200 is properly engaging thebulb . Notably, because the passage 230inthe sleeve 220is larger thanthe bulb, the sleeve 220 slips overthebulb very easily. [0105] Next, the user presses inwardly on one or more ofthe tines 216. The tines 216, in turn, press uponthe sleeve 220, compressing it firmly against thebulb located inthe passage 230. hithis fashion, thebulb is gripped by the sleeve 220. Theuser canthenpull upwardly or outwardly onthe tool to remove the bulb from the socket. As indicated, an advantage ofthe sleeve 220 being constructed of a high friction material is that it aids in gripping the bulb during the removal process. [0106] Oncethebulbis removed fromthe push-button switch, it maybe removed fromthe sleeve 220byreleasingthetines 216 andthenpulli∏gthebulb fromthe sleeve or allowingitto fall out of the passage 230. The old bulb may then be discarded. [0107] Theusermay replace abulbby first inserting annewbulb into the sleeve 220. Theuserthen presses uponthe tines 216 to ensure thatthebulb doesnot fall fromthe sleeve. Theuserthen aligns thenewbulb withthe socket ofthe push-button switch. Theuser presses thebulb downwardly into the socket. Notably, because thebulbis prevented from traveling into the sleeve 220by therod232, whentheuser presses downwardly uponthetool200, thebulb is likewise pressed downwardly into the socket. [0108] Oncethenewbulb is located inthe socket, theuse releases the tines 216 and pulls upwardly on the tool 200, leaving the bulb in place. [0109] It willbe appreciated thatthetool andthelens cap configuration maybe applied to button switches having other configurations. Thetool andlens cap configuration have particular utility with respect to push-button switches where thebulb orlampis difficult to access, suchas when connected to a gaming machine or similar housing andthebulbcan otherwise only conveniently be removed by accessing the bottom portion of the push-button switch. [0110] In accordance withthe invention, thebulbmay easily replaced fromthetop sideof the push¬ button switch andthe mount, suchas gaming machine housing, to which itis connected. As described, the lens cap is removed and the bulb is easily extracted from the top of the push-button switch. [0111] It willbe understood thatthe above described arrangements of apparatus andthemethod therefrom are merely illustrative of applications of the principles ofthis invention andmany other embodiments and modifications maybe made without departing from the spirit and scope of the invention as defined in the claims.