Push-button type electrical switch

Information

  • Patent Grant
  • 6590176
  • Patent Number
    6,590,176
  • Date Filed
    Monday, March 12, 2001
    23 years ago
  • Date Issued
    Tuesday, July 8, 2003
    21 years ago
Abstract
A push-button actuatable electrical switch is disclosed. In one embodiment, the push-button electrical switch includes a body having a first end and a second end, an actuator associated with the body, a push-button lens cap mounted to the actuator and extending from the first end of said body, an electrical switch having a switch button for activating the switch, and a mount adapted to support a lamp and the electrical switch. In one embodiment, the body includes a latch extending outwardly from the bottom end of the body in a direction generally opposite the top end and the mount includes a surface for engagement by the latch for connecting the mount to the body in position such that movement of the actuator with the push-button lens cap causes the switch button to be activated. In one embodiment, at least a portion of the body adjacent the push-button lens cap is transparent and illuminated by the lamp. In another embodiment, an electrically conductive pathway is defined through the body to a support structure whereby electrical discharges are routed to ground rather than through the lamp and electrical switch.
Description




FIELD OF THE INVENTION




The present invention relates to electrical switches, and more particularly to a push-button type electrical switch.




BACKGROUND OF THE INVENTION




Push-button type switches are utilized in thousands of applications. One common application for push-button switches is as an input device for a gaming machine. For example, a gaming machine may include a plurality of push-buttons permitting a user to indicate a input, such as to “hold” a card, place a “bet” of a monetary amount, “deal” cards or the like.




In the gaming machine environment, the push-buttons are generally mounted to a portion of the gaming machine housing, such as a metal panel. One problem with these buttons is that they are subject to electrostatic discharge (ESD). A user of the machine may carry an electric charge, such as developed by walking across carpeting in a casino. When the user touches a button of the gaming machine, the path to ground through the button is through the electrical circuitry thereof, including the switch. Thus, the ESD is released through the circuitry of the button. This discharge may harm the switch of the button and may even travel through the gaming machine circuitry to a controller, such as a gaming machine processor. The discharge may damage this circuitry or interfere with the operating of the game for a short period of time. In either event, the discharge causes harm.




During the lifetime of the gaming machine, the buttons of the machine may be used tens of thousands of times. It is therefore important to provide a push-button switch which will accept a high duty cycle and has a long-life. Among other things, components of a button may need to be replaced in order to maintain the button, or else the entire button must be replaced.




In many instances, gaming machines are located in areas of reduced illumination. The reduced illumination makes it easier for a player of the game to view information presented on a video display of the gaming machine. On the 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. It is desirable to provide a button which is easy to see and use.




SUMMARY OF THE INVENTION




The present invention is a push-button actuatable electrical switch.




In one embodiment, the push-button electrical switch includes a body having a first end and a second end. An actuator is associated with the body. A push-button is mounted to the actuator and extends from the first end of said body. An electrical switch is provided having a switch button for activating the switch. A mount is adapted to support a lamp and the electrical switch. The mount is connected to the body.




In one embodiment, the body includes at least one latch extending outwardly from the bottom end of the body in a direction generally opposite the top end. The mount includes a surface for engagement by the at least one latch for connecting the mount to the body in position such that movement of the actuator with the push-button causes said switch button to be activated.




In one embodiment, two latches extend outwardly from stop segments located in an interior area of the body at its bottom end. The mount includes a passage through which one of the latches extends, and a recessed or cut-away area along which the other latch extends. The latches both include catches which engage a bottom surface of a main portion of the mount when the mount is engaged with the body. The latches are moveable to a position in which the catches are released, allowing the mount to be disconnected from the body, such as for replacement of the lamp.




In one embodiment, at least a portion of the body adjacent the push-button is transparent and illuminated by the lamp. In one embodiment, the body includes a wall defining a cavity at its top end. The push-button is located at least partially in the cavity. The wall includes a flange which extends outwardly from the push-button, this flange being illuminated. In one embodiment, the lamp is located in an interior portion of the body. The entire body is transparent, transmitting light emitted by the lamp, including to the areas of the body adjacent the push-button.




In another embodiment, an electrically conductive pathway is defined through the body to a support structure whereby electrical dischargers are routed to ground rather than through the lamp and electrical switch. In one embodiment, the conductive pathway is defined by conductive material in or on the body. The conductive material may comprise conductive carbon particles embedded in plastic forming the body. In one embodiment, the pathway is defined through other portions of the body, such as an adapter or lock nut connected to the body and in contact with a support surface to which the push-button actuatable electrical switch is mounted.




Further objects, features, and advantages of the present invention over the prior art will become apparent from the detailed description of the drawings which follows, when considered with the attached figures.











DESCRIPTION OF THE DRAWINGS





FIG. 1

is a side view of a push-button electrical switch of the invention mounted to a support structure in the form of a gaming machine housing;





FIG. 2

is an exploded view of the push-button electrical switch illustrated in

FIG. 1

;




FIG.


3


(


a


) is a cross-sectional view of a body of the push-button electrical switch illustrated in

FIG. 1

along with a portion of an engaged lamp/switch mount connected thereto;




FIG.


3


(


b


) is a perspective view of the body of the push-button electrical switch looking in a direction from a bottom end towards a top end thereof;





FIG. 4

is a perspective view of a lamp/switch mount of the push-button electrical switch of the invention; and





FIG. 5

is a cross-sectional view of the push-button electrical switch illustrated in

FIG. 1

taken along a plane perpendicular to the support structure.











DETAILED DESCRIPTION OF THE INVENTION




The invention is a push-button type electrical switch. In the following description, numerous specific details are set forth in order to provide a more thorough description of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail so as not to obscure the invention.




In general, the invention is a push-button type electrical switch. The switch includes a push-button for actuating an electrical switch. In one embodiment, the push-button electrical switch has a light or lamp for illuminating a portion of a body or housing of the push-button electrical switch adjacent at least a portion of the push-button, thereby permitting easy identification of the location of the push-button by a user. In one embodiment, the push-button electrical switch has a configuration which promotes ease of assembly and disassembly. In one embodiment, the switch has one or more conductive body portions for transmitting electric discharges there through to a remote location, such as a supporting structure to which the body is mounted.




A push-button electrical switch


20


of the invention will first be described generally with reference to FIG.


1


. As illustrated, the push-button electrical switch


20


may be mounted to a support structure. As illustrated, the push-button electrical switch


20


is mounted to a panel or housing


22


of a gaining machine. In general, the push-button electrical switch


20


includes a push-button lens cap


24


extending from a top portion or end of a button body or housing


26


. An adapter


28


and lock nut


30


are associated with an exterior portion of the body


26


. A lamp/switch mount


32


is connected to the body


26


and extends from a bottom portion or end thereof generally opposite the push-button tens cap


24


. An electrical switch


34


is connected to the lamp/switch mount


32


.




In the arrangement illustrated, the housing


22


comprises a metal panel forming a portion of a body or housing of the gaming machine. The housing


22


has an aperture there through. Preferably, the body


26


extends through the aperture. The aperture is larger than the portion of the body


26


which extends there through, but smaller in dimension that the adapter


28


. The adapter


28


is positioned over the body


26


adjacent a top side of the housing


22


, obscuring the aperture through which the body extends. The lock nut


30


is affixed to the body


26


from the bottom side of the housing


22


. In this manner, the housing


22


is positioned between the adapter


28


and the lock nut


30


, securing the push-button electrical switch


20


to the housing


22


.




As detailed below, the push-button lens cap


24


extends outwardly from the body


26


for engagement by a user thereof, such as by a player of the gaming machine. When depressed or pushed by a user, the push-button lens cap


24


is arranged to activate/actuate the electrical switch


34


. Leads extend from the electrical switch


34


, and wires may be 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.




The components and construction of the push-button electrical switch


20


will now be described in detail. As illustrated in

FIG. 2

, the body


26


serves a supporting/housing function and includes a wall having inner and outer surfaces. In one embodiment, the body


26


is generally tubular and has a top or proximal end


36


and a bottom or distal end


38


. A passage


40


extends through the body


26


. As illustrated, at its top end


36


, the body


26


is generally square, thus defining a generally square periphery of the passage


40


. The body


26


may have a variety of other shapes at this location, such as round or rectangular. Preferably, the bottom end of


38


of the body


26


is generally cylindrical, thus defining a generally circular periphery of the passage


40


at that location.




In one or more embodiments, an outer surface of the body


26


is threaded at its bottom end


38


. The threads extend upwardly towards the top end


36


. The threads are adapted to accept mating threads on the lock nut


30


.




Referring to FIGS.


3


(


a


) and


3


(


b


), the body


26


defines an upper cavity


42


for accepting at least a portion of the push-button lens cap


24


. The upper cavity


42


forms a portion of the passage


40


through the body


26


. As illustrated, when the push-button lens cap


24


is generally square in peripheral shape, so is the upper cavity


42


. As described above, the body


26


defines a periphery around the upper cavity


42


which is also generally square. As illustrated, the body


26


includes an outwardly extending flange


44


in this location. As noted above, the push-button lens cap


24


may be other than square, in which case the body


26


at this location is as well, for example round or rectangular.




A middle cavity


46


is positioned below the upper cavity


42


and also forms a portion of the passage


40


. The middle cavity


46


is preferably cylindrical in shape, and has a diameter which is less 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 a stop to limit the travel of the push-button lens cap


24


downwardly into the body


26


, and serves as a support for a spring.




A lower cavity


50


is positioned below the middle cavity


46


and also forms a portion of the passage


40


. The lower cavity


50


is also preferably generally cylindrical in shape. As illustrated, a stop extends inwardly dividing at least a portion of the middle and lower cavities


46


,


50


. Referring to FIG.


3


(


b


), the stop comprises four wall or stop segments


51


.




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 from the top end


36


of the body


26


for engagement by a user. Referring to

FIG. 2

, the push-button lens cap


24


comprises a generally square member having a top surface and one or more sides or members extending downwardly therefrom. The push-button lens cap


24


may have a variety of other shapes, including rectangular and circular.




The push-button lens cap


24


is associated with an actuator


52


. The actuator


52


has a first end shaped to accept the push-button lens cap


24


there over. When the push-button lens cap


24


is square, preferably so is the first end of the actuator. Likewise, when the push-button lens cap


24


has other shapes such as rectangular or circular, the first end of the actuator


52


may be as well. Notably, the first end of the actuator


52


and the push-button lens cap


24


need not be the same shape, as long as the connecting function between the two is facilitated. As illustrated, one or more tabs


53


are located on the outside of the first end of the actuator


52


for use in securing the push-button lens cap


24


to the actuator


52


.




The actuator


52


has a generally cylindrical main portion adapted to fit within the middle cavity


46


of the body


26


. Preferably, three legs


54




a,b,c,


extend downwardly from the periphery of the main portion of the actuator


52


in a direction opposite its first end. A pair of the legs


54




a


,


54




c


are preferably located about 180 degrees apart. The third leg


54




b


is positioned there between. As illustrated, the third leg


54




b


is preferably located nearer one of the legs


54




c


than the other of the legs


54




a.






The opposing legs


54




a


,


54




c


each have 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

FIG. 1

, when the actuator


52


is positioned in the body


26


, the legs


54




a,b,c,


extend through spaces between the stop segments


51


of the body


26


. When so positioned, the catches


56


engage a lower rim of the body


26


, preventing further upward movement of the actuator


52


.




A foot


58


is located on the end of the third leg


54




b


. As described in more detail below, lie foot


58


is adapted to engage a button of the electrical switch


34


for actuating the switch. As illustrated, the Riot


58


extends radially inward from the third leg


54




b.






A spring


60


is positioned inside of the body


26


and engages both the body


26


and the actuator


52


. In a preferred embodiment, the spring


60


is a helical spring. A first end of the spring


60


rests against the top surface of the stop segments


51


of the body


26


. The second end of the spring


60


is positioned within the actuator


52


and rests against a stop


61


therein. So arranged, the spring


60


has the natural tendency to urge the 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.




The lamp/switch mount


32


is connected to the body


26


at its bottom end


38


. The lamp/switch mount


32


will now be described in detail with reference to FIG.


4


. The lamp/switch mount


32


has a generally disc-shaped main portion


62


. The main portion


62


has three cut-out areas


64




a,b,c


permitting passage of the legs


54




a,b,c


of the actuator


52


there through.




A passage


66


extends generally centrally through (i.e. along a central axis extending generally perpendicular to a plane in which the main portion


62


extends) the main portion


62


. A lamp stand


68


extends upwardly from a top surface of the main portion


62


and downwardly from a lower surface of the main portion, defining a generally lower closed end. In general, the lamp stand


68


forms extended portions of the passage


66


for accepting therein a lamp


70


(see FIG.


2


). First and second contacts


72




a,b


are also located in the passage


66


. The first and second contacts


72




a,b


contact leads or contacts on the lamp


70


. The contacts


72




a,b


extend through the lower closed end of the lamp stand


68


for connection to appropriate power wires for powering the lamp.




A switch mount


74


extends below the main portion


62


of the lamp/switch mount


32


. The switch mount


74


is offset from the central axis. In one embodiment, the switch mount


74


extends from the lamp stand


68


. The switch mount


74


includes first and second spaced pins


76




a,b.


A lock


78


extends downwardly from the main portion


62


. The lock


78


is spaced apart from the pins


76




a,b,


defining a space in which the electrical switch


34


may be located.




Referring to

FIG. 2

, the electrical switch


34


has a generally closed housing


80


. The electrical switch


34


may have a variety of shapes and configurations. As illustrated, the housing


80


is generally rectangular. First and second passages


82




a


,


82




b


extend through the housing


80


from side to side. The passages


82




a,b


are adapted to accept the first and second pins


76




a


,


76




b


of the lamp/switch mount


32


.




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


. In one embodiment, the electrical switch


34


is a two-position switch. The workings of such electrical switches


34


are well known. As is common in such a two-position electrical switch


34


, the electrical switch


34


includes three leads or contacts


86




a,b,c.


The position of the electrical switch


34


determines which of the leads are “hot” (one being for ground).




Referring to

FIG. 5

, when the electrical switch


34


is mounted to the lamp/switch mount


32


the pins


76




a,b


extend into the passages


82




a,b.


The lock


78


presses against the opposite side of the housing


80


of the electrical switch


34


, maintaining the pins


76




a,b


in engagement with the passages


82




a,b,


securely mounting the electrical switch


34


.




When so mounted, the foot


58


of the second leg


54




b


of the actuator


52


is positioned adjacent the button


84


of the electrical switch


34


. When a user depresses the push-button lens cap


24


, the actuator is moved downwardly, causing the foot


58


to engage the switch button


84


. This actuates the electrical switch


34


.




Most importantly, in accordance with the invention there is provided an advantageous mounting arrangement for removably connecting the lamp/switch mount


32


to the body


26


. Referring to FIGS.


3


(


a


) and


3


(


b


), first and second latches


88


,


90


extend from the bottom end


38


of the body


26


. The latches


88


,


90


extend from the stop segments


51


of the body


26


. Each latch


88


,


90


generally comprises a member extending outwardly from the stop segment, and includes a catch. As illustrated, the latches


88


,


90


are positioned generally 180 degrees apart, with the catches facing generally in the same direction.




The lamp/switch mount


32


includes a passage


92


through the main portion


62


. The passage


92


accepts the latch


90


there through. A cut-out or recess


94


is provided in the periphery of the main portion


62


of the lamp/switch mount


32


.




Referring to FIG.


3


(


a


), the lamp/switch mount


32


is arranged to be mounted in abutting relationship to the stop segments


51


at the bottom end


38


of the body


26


. The top surface of the main portion


62


of the lamp/switch mount


32


is abutted against the lower surface of the stop segments


51


of the body


26


. In this position, the latch


90


extends through the passage


92


in the lamp/switch mount


32


, with the catch of the latch


90


engaging the lower portion of the main portion


62


of the lamp/switch mount


32


. At the same time, the latch


88


extends along the cut-out area


94


in the main portion


62


of the lamp/switch mount


32


, with the catch thereof also engaging the lower portion of the main portion


62


of the lamp/switch mount


32


.




Preferably, as illustrated in FIG.


3


(


a


), the latches


88


,


90


are arranged to press the lamp/switch mount


32


both upwardly against the stop segments


51


, and radially outwardly against the inside wall of the body


26


at its bottom end


38


. Importantly, the latches


88


,


90


are slightly flexible, permitting a user to bend them out of engagement with the lamp/switch mount


32


, thereby permitting the lamp/switch mount


32


to be removed from engagement with the body


26


.




In one or more other embodiments, other means may be provided for removably securing the lamp/switch mount


32


to the body


26


. Preferably, the securing means includes at least one member which is accessible by a user for manipulation in unlocking or removing the lamp/switch mount


32


from the body


26


. There may be only a single latch or more than one latch. The latch(es) may engage the lamp/switch mount


32


in a variety of manners. For example, the lamp/switch mount


32


need not include passages or cutout areas. The lamp/switch mount


32


may include a trough in the lower surface or in a side surface for engagement by a portion (such as a catch) of the latch(es). In one embodiment, a threaded rod may extend from the body


26


and through a passage/slot in the lamp/switch mount


32


. A nut may be threaded onto the rod to engage the lamp/switch mount


32


with the body


26


.




In one embodiment, the latches


88


,


90


may extend form the wall forming the body


26


instead of or in addition to the stop segments


51


. In another embodiment, rotating lock members may be associated with the body


26


and moved into a locking position when the lamp/switch mount


32


is pressed into engagement therewith, and rotated out of the locking position to permit removal/disconnection of the lamp/switch mount


32


from the body


26


. In general, it is desired that a release for the locking mechanism be accessible to the user.




The various components of the push-button electrical switch


20


may be constructed from a wide range of materials. In one embodiment, the push-button lens cap


24


, actuator


52


, body


26


, adapter


28


, lock nut


30


, and lamp/switch mount


32


comprise plastic or a similar material conveniently constructed in a molding or extrusion process. The contacts


72




a


,


72




b


and spring


60


preferably comprise metal members. In one or more embodiments, the various components may have a variety of colors.




In one embodiment of the invention, at least a portion of the body


26


around the push-button lens cap


24


is arranged to illuminate or be illuminated. In this manner, the location of the push-button lens cap


24


may be easily identified by a user. In a preferred embodiment, the body


26


is constructed from a transparent or generally transparent material, such as clear plastic, instead of traditional black polypropylene. Light emitted by the lamp


70


passes through the body


26


, thereby illuminating the body


26


, including the peripheral portion thereof at the top end


36


around the push-button lens cap


24


.




In one embodiment, to provide significant contrast between the push-button lens cap


24


and the body


26


, the push-button lens cap


24


is arranged to generally not transmit light emitted by the lamp


70


. In one embodiment, the push-button lens cap


24


may be constructed of an opaque material. In another embodiment, a shield, such as plastic plate, may be located within the push-button lens cap


24


. In this embodiment, the push-button lens cap


24


is generally not illuminated, but the surrounding body


26


is, whereby the illuminated body


26


generally serves to identify the extent/location of the push-button lens cap


24


. In a preferred embodiment, as illustrated in

FIG. 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 cap


24


. For example, the legend plate


96


may be printed with “deal/draw,” “bet one” or other words, numbers or symbols. In one embodiment, the legend plate


96


permits light illuminated by the lamp


70


to pass there through to render the lettering or other printing more visible. For example, the legend plate


96


may be a plastic plate of any of a variety of colors (even clear) having printing, such as black or other colored lettering.




In accordance with another aspect of the 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


of the gaming machine or other support structure or remote location, and away from the circuitry of the lamp


70


and electrical switch


34


.




In one embodiment, as illustrated in

FIG. 5

, a path of electrical conduction P is defined from an external portion of the push-button electrical switch


20


to the housing


22


or other grounding element. In one or more embodiments, this pathway is defined by an electrically conductive material located in the push-button electrical switch


20


. In one embodiment, The body


26


, adapter


28


, and/or lock nut


30


are constructed from plastic having a conductive carbon material


96


interspersed therein (see FIGS.


3


A and


5


). The interspersed conductive carbon


96


defines a pathway through the components the housing


22


or other ground. Preferably, sufficient conductive carbon is provided that the path of least resistance to 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.




It will be appreciated that in order


10


provide an effective pathway P to ground, the housing


22


or other supporting structure may need to be specially configured. In one embodiment, the housing


22


may comprise a metal panel which is painted (such as powder coated). In such an embodiment, it is preferred that an area of contact be provided between the body


26


, adapter


28


, lock nut


30


or other component of the push-button electrical switch


20


directly with the metal of the housing


22


.




In one embodiment, a metal strip or the like may be connected to the push-button electrical switch


20


, such as sandwiched between the adapter


28


and housing


22


or lock nut


30


and housing


22


, with the metal strip extending to ground.




In another embodiment, the pathway P through the push-button electrical switch


20


to ground may comprise other than dispersed particles


96


. In one embodiment, a wire may be embedded in the body


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 that the location or proximity of the user's touch or approach to the push-button electrical switch


20


need not then coincide with a specific location of the path to ground (as in the case of an embedded wire), since multiple paths to ground are provided.




In other embodiments, a layer of conductive material may be located on the one or more components of the push-button electrical switch


20


. For example, a thin layer of conductive metal may be deposited on the exterior of the body


26


.




In one embodiment, the push-button lens cap


24


may be conductive. In such event, it is desired that the actuator


52


be insulating so that electrical energy is transferred from the push-button lens cap


24


through the body


26


to ground, and not to the switch/lamp circuits.




Assembly and use of the push-button electrical switch


20


of the invention will now be described. Referring to

FIG. 2

, the lamp


70


is installed into the lamp/switch mount


32


along with the contacts


72




a,b.


The electrical switch


34


is connected to the lamp/switch mount


32


.




The push-button lens cap


24


is 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


52


is pressed downwardly, compressing the spring


60


until the catches


56


of the legs


54




a


,


54




c


of the actuator


52


engage the bottom end


38


of the body


26


.




The lamp/switch mount


32


is then connected to the body


26


. As described above, the lamp/switch mount


32


is aligned with the legs


54




a,b,c


and latches


88


,


90


and pressed upwardly. The legs


54




a,b,c


extend through the recesses


64




a,b,c


in the lamp/switch mount


32


. The latch


90


extends through the passage


92


, and the latch


88


extends along the cut-out


94


. Upon further upward movement, the catches on the latches


88


,


90


extend over the bottom surface of the main portion


62


of the lamp/switch mount


32


, locking it to the body


26


.




The push-button electrical switch


20


may be conveniently mounted to the housing


22


. First, the adapter


28


is extended over the bottom end


38


of the body


26


and moved upwardly as far as possible. Next, the bottom end


38


of the body


26


is passed through an aperture in the housing


22


until the adapter


28


rests upon or abuts the housing


22


. The locking nut


30


is then engaged with the threads on the outer surface of the body


26


from the bottom end


38


. The locking nut


30


is threaded upwardly until it engages the housing


22


.




Appropriate wiring (not shown) is attached to the contacts


72




a


,


72




b


for providing power to the lamp


70


. Appropriate wiring (not shown) is also attached to the leads


86




a,b,c


of the electrical switch


34


.




In use, a user depresses the push-button lens cap


24


. The push-button lens cap


24


moves the actuator


52


downwardly against the force of the spring


60


. Sufficient downward movement causes the foot


58


of the leg


54




b


to engage the switch button


84


, actuating the electrical switch


34


. Upon release of the user-applied pressure or force, the spring


60


moves the actuator


52


and push-button lens cap


24


upwardly.




A significant advantage of the push-button electrical switch


20


is that an electro-static discharge (ESD) from the player is routed away from the circuitry of the push-button electrical switch


20


, avoiding many problems. In accordance with the invention, when a player touches (or comes sufficient close to the push-button electrical switch


20


that a discharge may arc through the air space and bridge 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. In the preferred embodiment, the discharged is routed through the conductive material in the body


26


, adapter


28


and/or lock nut


30


to the housing


22


. This path routes the electrical energy away from the lamp circuit or the switch circuit.




In accordance with the invention, a push-button electrical switch


20


is provided which is simple to assemble and disassemble. In particular, replacement of the lamp


70


is facilitated. In the event the lamp


70


burns out and needs replacing, the lamp/switch mount


32


is easily disengaged from the body


26


, providing access to the lamp


70


for replacement. In 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 lamp/switch mount


32


. Then, the user may move the lamp/switch mount


32


downwardly with respect to the body


26


for access to the lamp


70


.




As another aspect of the invention, the push-button electrical switch


20


has an illuminated body


26


surrounding the user-actuatable push-button lens cap


24


. The illuminated body


26


aids in defining to a user the location of the push-button lens cap


24


.




It will be understood that the above described arrangements of apparatus and the method therefrom are merely illustrative of applications of the principles of this invention and many other embodiments and modifications may be made without departing from the spirit and scope of the invention as defined in the claims.



Claims
  • 1. A push-button actuatable electrical switch comprising:a body having a first end and a second end and at least one stop extending into an interior area of said body between said first and second ends; a first and a second latch extending outwardly from said at least one stop in a direction opposite said first end, said first and second latches spaced from one another and each including a catch extending from a free end thereof opposite a connection thereof to said at least one stop; an actuator associated with said body; a push-button mounted to said actuator and extending from said first end of said body; a switch, said switch having a switch button for activating said switch; and a mount supporting a lamp and said switch, said mount including at least one surface for engagement by said first and second latch for connecting said mount to said body in position such that movement of said actuator with said push-button causes said switch button to be activated.
  • 2. The push-button actuatable electrical switch in accordance with claim 1 wherein said mount includes at least one passage through which one of said latches extends.
  • 3. The push-button actuatable electrical switch in accordance with claim 1 wherein mount includes a periphery having a notch therein and said mount including a passage therethrough, said first latch extending through said notch and said second latch extending through said passage when said mount is connected to said body.
  • 4. The push-button electrical switch in accordance with claim 1 wherein the catch of said first and second latches extend in generally the same direction.
  • 5. The push-button actuatable electrical switch in accordance with claim 1 wherein said mount includes a main portion having a top surface and a bottom surface, said top surface abutting said at least one stop when connected to said body and said first and second latches engaging said bottom surface.
US Referenced Citations (18)
Number Name Date Kind
3740501 Kiessling et al. Jun 1973 A
3895205 Tharp Jul 1975 A
3983348 Kellogg Sep 1976 A
4354078 Yoshimura Oct 1982 A
4360722 Georgopulos Nov 1982 A
4368368 Russenberger Jan 1983 A
4419555 Kim Dec 1983 A
4454397 Kim Jun 1984 A
4585914 Ohashi et al. Apr 1986 A
4590342 Schlegel May 1986 A
4733036 Koizumi et al. Mar 1988 A
4871890 Herrera Oct 1989 A
5077454 Lorenzo Dec 1991 A
5178504 Falchi Jan 1993 A
5401925 Sambar Mar 1995 A
5543594 Romero-Herrera Aug 1996 A
6066816 Benger May 2000 A
6166339 Bechis Dec 2000 A