Contamination protected electrical switch, particularly automoti

Details Contamination protected electrical switch, particularly automoti Contamination protected electrical switch, particularly automoti

1974-08-06

1976-10-19

Hohauser, Herman J.

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200 30A, H01H 904

Patent

active

039872661

ABSTRACT:
To improve the operating reliability and accuracy of ignition breaker contacts, an operating rod passes into a sealed housing, in gas-tight manner, by being secured, gas-tight, to a membrane which is resiliently deflectable, the breaker rod reciprocating under control of an engine operating cam, the membrane effecting a gas-tight seal while, by resilient deflection, transferring operating movement into the interior of the breaker switch housing; the breaker contacts are retained in the housing. A spring is used to provide for operating force, or the membrane may be pre-stressed; the interior of the housing may be evacuated or may contain a protective, inert gas.

REFERENCES:
patent: 2677741 (1954-05-01), Martin
patent: 2824183 (1958-02-01), Marasco et al.
patent: 3363078 (1968-01-01), Ishizaki
patent: 3711668 (1973-01-01), Harnden, Jr.

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