Electrical pressure switch

Details Electrical pressure switch Electrical pressure switch

1985-10-28

1987-01-20

Tolin, G. P.

Electricity: circuit makers and breakers

Fluid pressure

Flow-responsive type

200 82R, 200 83J, 200277, 2003021, 73745, H01H 3538

Patent

active

046381325

ABSTRACT:
A pressure switch having a ball valve or contact mounted in an internal chamber to move in response to predetermined relatively high and relatively low fluid pressures in an inlet that opens into the chamber to make or break an electrical circuit through the switch and that incorporates a one-piece sealing element that is constantly exposed to the fluid pressure and is uniquely formed and cooperative with the ball contact and with the walls of the chamber to prevent leakage of the fluid from the chamber effectively without significantly interfering with free unobstructive movement of the ball contact in use.

REFERENCES:
patent: 3733449 (1973-05-01), Parker
patent: 3739119 (1973-06-01), Rike
patent: 3939316 (1976-02-01), Stopkay
patent: 4007343 (1977-02-01), Alten

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