Pressure switch and circuit means

Details Pressure switch and circuit means Pressure switch and circuit means

1978-10-13

1981-03-17

Miller, Jr., George H.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

200 814, 200 83N, H01H 3524

Patent

active

042569737

ABSTRACT:
A pressure switch is shown as having two terminals extending externally of a switch housing within which are two stationary adjustably prepositioned fixed contacts respectively electrically connected to the two terminals; two movable contacts are also situated within the housing and, in response to sensed pressure, move toward (or away from) the fixed contacts in a manner causing sequential closing of electrical circuit portions as between respective movable contacts and fixed contacts; related electrical circuit means electrically connected to such contacts serves to energize and/or de-energize related output means as, for example, electrically operated clutch means.

REFERENCES:
patent: 3475746 (1969-10-01), Nelson et al.
patent: 3631389 (1971-12-01), Elliot
patent: 3879593 (1975-04-01), Larson
patent: 4037317 (1977-07-01), Bauer et al.
patent: 4160139 (1979-07-01), Johnston

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