Editing Pushbutton switch assembly

{{infobox patent
|image	   = [[file:4153829.png|frameless]]
|title	   = Pushbutton switch assembly
|inventor  = Taneo Murata
|issued    = 8 May 1979
|assignee  = [[Alps|Alps Electric Co.,Ltd.]]
|reference = {{cite patent |number=US4153829}}
}}

'''Pushbutton switch assembly''' is an invention by Taneo Murata from Tokyo, Japan. Its patent number 4153829 was granted in 1979. The assignee was [[Alps|Alps Electric Co., Ltd.]]. <ref name=Murata>{{ cite patent | country = US | number = 4153829 | status = patent | title = Pushbutton switch assembly | pubdate =  | gdate = 8 May 1979 | fdate = 16 February 1977 | pridate =  | inventor = Taneo Murata | invent1 =  | invent2 =  | assign1 = [[Alps|Alps Electric Co., Ltd.]] | assign2 =  | class = }}  </ref>

==Description==

'''Pushbutton switch assembly'''

* Inventor: Taneo Murata
* Patent number: 4153829
* Application number: 768982
* Filing date: 16 February 1977
* Issued date: 8 May 1979
* Assigned to [[Alps|Alps Electric Co., Ltd.]]

==Summary==

The operation of the push button (1) switch occurs after the lever (2) is depressed which in turn pushes the zigzagged portion (14) of the spring member (12)(14''b''). The spring member, or the zigzagged portion of it, as a result, pushes against the center of the disc portion (27), which eventually snaps, projecting through an opening (31) of the insulating member (30), until the switch is closed. 

The reversible process is obtained by the release of  the push button (1), which causes the disc portion of the movable contact member (25) to snap back from the fixed contact member (32), since the resilient force exerted upon the coil spring (11) applies equally to the spring (12) and resilient members (19) as well, until the switch is opened. <ref name=Murata/>

==Cited patents==

* {{cite patent |country = US |number = 3674970	|fdate = Oct 23, 1970	|gdate = 1972	|title = Panel-mounted switch}}
* {{cite patent |country = US |number = 3969600	|fdate = Jun 11, 1975	|gdate = Jul 13, 1976	|assign1 = Burroughs Corporation |title =  Tactile feedback keyboard switch assembly and actuator}}
* {{cite patent |country = US |number = 3978297	|fdate = Mar 31, 1975	|gdate = Aug 31, 1976	|assign1 = Chomerics, Inc. |title = Keyboard switch assembly with improved pushbutton and associated double snap acting actuator/contactor structure}}
* {{cite patent |country = US |number = 4029916	|fdate = Apr 18, 1975	|gdate = Jun 14, 1977	|assign1 = Northern Electric Company Limited |title = 	Multi-contact push-button switch and plural embodiment for keyboard switch assembly}}
* {{cite patent |country = US |number = 4056700	|fdate = Jan 19, 1976	|gdate = Nov 1, 1977	|assign1= Western Digital Corporation |title = 	Keyboard assembly momentary contact push button switch with tactile action}}

==Referenced by==

* {{cite patent |country = US |number = 4466302	|fdate = Sep 17, 1981	|gdate = Aug 21, 1984	|assign1 = International Business Machines Corporation |title = 	Nutating snap action switch mechanism}}
* {{cite patent |country = US |number = 4563555	|fdate = Jan 12, 1984	|gdate = Jan 7, 1986	|assign1 = Mitutoyo Mfg. Co., Ltd. |title = Construction of control switch}}
* {{cite patent |country = US |number = 4582969	|fdate = Sep 20, 1984	|gdate = Apr 15, 1986	|assign1 = Alps Electric Co. Ltd. |title = 	Slide guide construction push-type electric devices}}
* {{cite patent |country = US |number = 4613737	|fdate = Sep 4, 1984	|gdate =  Sep 23, 1986	|assign1 = Alps Electric Co., Ltd. |title = 	Low profile pushbutton switch with tactile feedback}}
* {{cite patent |country = US |number = 4642433	|fdate = Jul 11, 1985	|gdate = Feb 10, 1987	|assign1 = Alps Electric Co., Ltd. |title = 	Pushbutton switch with aural confirmation of operation}}
* {{cite patent |country = US |number = 4751355	|fdate = Jul 8, 1987	|gdate = Jun 14, 1988	Rudolph Schadow GmbH |title = 	Pushbutton switch with combined restoring-tactile feel spring}}
* {{cite patent |country = US |number = 4760225	|fdate = Jan 14, 1987	|gdate = Jul 26, 1988	|assign1 = Alps Electric Co., Ltd. |title = 	Push button switch having a frame member for preventing solder penetration of switch contacts}}
* {{cite patent |country = US |number = 4803316	|fdate = Oct 16, 1986	|gdate = Feb 7, 1989	|assign1 = Fujitsu Limited |title =	Push button switch using dome spring and switch element thereof}}
* {{cite patent |country = US |number = 5124514	|fdate = Jul 8, 1991	|gdate = Jun 23, 1992	|title = Structure of mechanical key switch}}
* {{cite patent |country = US |number = 5660272	|fdate = May 15, 1996	|gdate = Aug 26, 1997	|assign1 = ITT Compasants Et Instruments |title =	Laterally actuated electrical switch}}
* {{cite patent |country = US |number = 6018132	|fdate = Aug 27, 1999	|gdate = Jan 25, 2000	|assign1 = Hon Hai Precision Ind. Co., Ltd. |title = 	Horizontal tact switch}}
* {{cite patent |country = US |number = 6495783	|fdate = Dec 14, 2000	|gdate = Dec 17, 2002	|assign1 = ITT Manufacturing Enterprises, Inc. |title = 	Push actuated electrical switch}}
* {{cite patent |country = US |number = 6900399	|fdate = Jun 24, 2004	|gdate = May 31, 2005	|assign1 = Methode Electronics, Inc. |title = 	Electrical switch assembly}}
* {{cite patent |country = US |number = 7982151	|fdate = Dec 8, 2008	|gdate = Jul 19, 2011	|assign1 = CoActive Technologies LLC |title = 	Electrical switch with lateral operation and assembly comprising such a switch mounted on a plate}}

==Images==

<gallery>
file:4153829.png
file:4153829-1.png
file:4153829-2.png
</gallery>

==References==
<references/>

[[Category:Patents]]