Pressure responsive switch with an air filter

Details Pressure responsive switch with an air filter Pressure responsive switch with an air filter

1987-07-28

1988-08-30

Tolin, G. P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

92 78, 200 83N, 200 83S, 2003021, H01H 3534

Patent

active

047678984

ABSTRACT:
A pressure switch comprising a housing, a diaphragm that divides the inside of the housing into a pressure chamber and an atmospheric chamber, a switch portion mounted in the atmospheric chamber, and a resilient cap fitted over the housing. A porous filter is held between the housing and the cap. The diaphragm is actuated according to the difference between the pressures inside the chambers. The switch portion consists of a movable contact and a fixed contact, and is connected to terminals.

REFERENCES:
patent: 3917917 (1975-11-01), Murata
patent: 4215254 (1980-07-01), Ohki
patent: 4267766 (1981-05-01), Horsting
patent: 4330695 (1982-05-01), Poling
patent: 4368366 (1983-01-01), Kitamura

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