Pressure differential switch device

Details Pressure differential switch device Pressure differential switch device

1976-05-12

1978-04-11

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83S, 73716, H01H 3534

Patent

active

040840727

ABSTRACT:
A pressure differential switch device having a flexible diaphragm between two chambers subject to differential pressures and a permanent magnet movable with the diaphragm against a biasing force when pressure differences occur in the chambers; the magnet moving to a position in which the magnetic field of the magnet actuates the contacts of a reed switch assembly.

REFERENCES:
patent: 3007017 (1961-10-01), Dwyer
patent: 3551620 (1970-12-01), Hoover
patent: 3654956 (1972-04-01), Tsubouchi
patent: 3678232 (1972-07-01), Hodges
patent: 3680044 (1972-07-01), Tsubouchi
patent: 3786211 (1974-01-01), Popp
patent: 3946175 (1976-03-01), Sitabkhan

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