Keyboard switch

Details Keyboard switch Keyboard switch

1983-04-29

1984-09-11

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200159B, 200292, H01H 1370

Patent

active

044711760

ABSTRACT:
A snap action keyboard switch mechanism is presented wherein protrusions located on the switch sheet between adjoining snap action elements act to support the switch sheet and avoid inadvertent input. If a key is actuated off center, the support protrusions will prevent erroneous actuation of an adjoining key. The protrusion height varies depending upon the desired optimum tactility.

REFERENCES:
patent: 3392247 (1968-07-01), Check
patent: 4071718 (1978-01-01), Harden
patent: 4237351 (1980-12-01), Boulanger et al.
patent: 4245138 (1981-01-01), Harper
patent: 4322587 (1982-03-01), Burns et al.

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