Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1982-06-14
1983-03-01
Scott, J. R.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200159B, 200308, H01H 1370, H01H 900
Patent
active
043755852
ABSTRACT:
A deformable switch keyboard assembly with a flexible unitary top member, a compressible intermediate switch assembly layer and a bottom member providing mechanical support for the intermediate assembly and mechanical isolation for the switching function.
The top member has a plurality of switch site defining regions extending in a first direction and located in a predetermined array to define the keyboard. The intermediate switch assembly has a plurality of switch sites each underlying a different one of the top member projections. The bottom member has first and second sets of projections extending toward the top member, each of the first set of projections underlying a different one of the switch sites and providing a compression contact beneath the intermediate switch assembly when the corresponding top member region is actuated to advance in the first direction. Each of the second set of projections is located intermediate different adjacent ones of the switch sites and is longer than any of the first set of projections in order to provide mechanical isolation between an actuated switch site and the remainder of the switch sites.
REFERENCES:
patent: 3576407 (1971-04-01), Stephens, Jr.
patent: 3617666 (1971-11-01), Brave
patent: 3935485 (1976-01-01), Yoshida
patent: 3995126 (1976-11-01), Larson
patent: 4066850 (1978-01-01), Heys, Jr.
patent: 4071718 (1978-01-01), Harden
patent: 4314116 (1982-02-01), Gordon
IBM Technical Disclosure Bulletin; Johnson, D. O., Jr., Keyboard and Wiping Contact Assembly; Dec. 1970, vol. 13, No. 7, pp. 1962, 1963.
Atari Inc.
Scott J. R.
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