Switch means for short-stroke push-button keys

Details Switch means for short-stroke push-button keys Switch means for short-stroke push-button keys

1975-06-30

1977-09-06

Schaefer, Robert K.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 5A, 200159A, 200243, 200 67DB, H01H 312

Patent

active

040469824

ABSTRACT:
This invention relates to a switch means for push-button keys. The switch means comprises a roof shaped snap action spring element which is actuated by a push-button. The spring actuates a contact member which makes contact with electrical conductors on a printed circuit board.

REFERENCES:
patent: 1249068 (1917-12-01), Gramm
patent: 1733085 (1929-10-01), Thomas
patent: 1972172 (1934-09-01), Spencer
patent: 2332883 (1943-10-01), Abrahamson
patent: 2526850 (1950-10-01), Charbonneau
patent: 3539749 (1970-11-01), MacPheat
patent: 3684842 (1972-08-01), Boulanger
patent: 3879586 (1975-04-01), DuRocher et al.

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