Rugged low force switch apparatus

Details Rugged low force switch apparatus Rugged low force switch apparatus

1980-02-19

1981-12-08

Shepperd, John W.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200159B, 200340, H01H 312

Patent

active

043049737

ABSTRACT:
A pressure plate is depressed to actuate a momentary closing switch by exerting pressure on a flexible cover on the switch through a semi-rigid separator and an elastomeric diaphragm. A projection on the plate contacts the separator to focus the pressure on a portion thereof. A foam ring is disposed around the projection and between the plate and separator and is compressed as the plate is depressed.

REFERENCES:
patent: 2740023 (1956-03-01), Kryder
patent: 3308253 (1967-03-01), Krakinowski
patent: 3494550 (1970-02-01), Hayes et al.
patent: 3862381 (1975-01-01), Glaister et al.
patent: 3978297 (1976-08-01), Lynn et al.
patent: 3999025 (1976-12-01), Sims
patent: 4033030 (1977-07-01), Robinson et al.
patent: 4060703 (1977-11-01), Everett
patent: 4090045 (1978-05-01), Marsh
patent: 4181826 (1980-01-01), Lataslewicz

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