Tactile feel membrane switch assembly

Details Tactile feel membrane switch assembly Tactile feel membrane switch assembly

1983-11-02

1984-07-31

Shepperd, John W.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 5A, H01H 1348, H01H 1352

Patent

active

044632347

ABSTRACT:
A switch is disclosed having an insulating substrate with a first contact, a spacer layer with a hole aligned with the contacts, a flexible membrane with second contacts aligned with the hole and first contact, the membrane having a raised area of controlled thickness aligned with the second contact forming a force actuator, a dome enclosure with circular pockets for locating snap domes aligned with the raised area of the membrane, an overlay with cut out portions corresponding, to the snap domes and an overlay with graphic indicia covering the assembly.

REFERENCES:
patent: 4129758 (1978-12-01), Gilano et al.
patent: 4207448 (1980-06-01), Furusawa et al.
patent: 4254309 (1961-03-01), Johnson
IBM Technical Disclosure Bulletin "Switch", Harris et al., vol. 12 No. 7, Dec. 1969, p. 1130.

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