Key switch having an actuator integral with the return spring

Details Key switch having an actuator integral with the return spring Key switch having an actuator integral with the return spring

1983-02-24

1985-01-08

Shepperd, John W.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200276, 200159B, H01H 106

Patent

active

044928386

ABSTRACT:
Key switch assembly comprises a frame and a plunger in the frame which is movable from an extended position to a depressed position to close a switch. A one piece member is provided which serves as both a return spring for the plunger and an actuator for closing the switch when the plunger is depressed. The one piece member has a force-receiving portion which is against the end of the plunger. The return spring and the actuator are integral with, and extend from, the force-receiving portion.

REFERENCES:
patent: 3600528 (1971-08-01), Leposavic
patent: 3603756 (1971-09-01), Carpentier et al.
patent: 3773997 (1973-11-01), Evans et al.
patent: 3819882 (1974-06-01), Anderson et al.
patent: 3856998 (1974-12-01), Sims, Jr.
patent: 3888807 (1975-06-01), Lockard
patent: 3909564 (1975-09-01), Scheingold et al.
patent: 3928736 (1975-12-01), Drage
patent: 4063054 (1977-12-01), Hirata
patent: 4092503 (1978-05-01), Raeder
patent: 4117292 (1978-09-01), Hayes et al.
patent: 4370533 (1983-01-01), Kamei et al.

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