Keyboard

Details Keyboard Keyboard

1985-07-02

1986-08-26

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200159B, 200308, H01H 1370

Patent

active

046084657

ABSTRACT:
A keyboard switch has a decoration sheet disposed above a printed circuit board in spaced relation thereto so that a flexible contact disposed between the printed circuit board and the decoration sheet can be moved into and out of contact with the printed circuit board by the depression of the decoration sheet. The decoration sheet is made of a material having a low extensibility, with recessed deforming areas that also serve as key symbols formed integrally with the decoration sheet.

REFERENCES:
patent: 4071718 (1978-01-01), Harden
patent: 4128744 (1978-12-01), Seeger
patent: 4314116 (1982-02-01), Gordon
patent: 4322587 (1982-03-01), Burns et al.
patent: 4375585 (1983-03-01), Lee
patent: 4492829 (1985-01-01), Rodique

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