Electricity: circuit makers and breakers – Special application – Liquid or moisture responsive
Patent
1975-03-14
1976-11-30
Smith, Jr., David
Electricity: circuit makers and breakers
Special application
Liquid or moisture responsive
H01H 1328
Patent
active
039951294
ABSTRACT:
A key switch component for mounting on printed circuit boards of preferably digital circuits, comprising a housing and one or more fixed contacts in connection with a pivotally mounted contact tongue which is held by a tension spring in a first switch position and is tipped into a second switch position by the pressure of a pivotally mounted actuating key on the spring.
REFERENCES:
patent: 2729714 (1956-01-01), Broch
patent: 3571541 (1971-03-01), Bedocs
patent: 3743805 (1973-07-01), Guinan
patent: 3914570 (1975-10-01), Lockard
Michals William J.
Raden James B.
Rudolf Schadow GmbH
Smith Jr. David
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