Fluid pressure switch adapted for low fluid pressure and through

Details Fluid pressure switch adapted for low fluid pressure and through Fluid pressure switch adapted for low fluid pressure and through

1991-09-13

1992-09-01

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

7386147, 137554, 137557, 200 819R, 2003021, H01H 3534

Patent

active

051441020

ABSTRACT:
A fluid switch for measuring throughput in a fluid line, the fluid switch having an electrical switch and an associated membrane subjected to the pressure of the fluid introduced into a working chamber of the fluid switch. The fluid pressure causes simultaneous opening of a fluid outlet of the fluid switch and of contacts of the electrical switch. Thereby, the number of openings and closings of the switch will be representative of the number of openings of the fluid outlet and the throughput of the fluid. The membrane carries a projection serving as a valve which cooperates with a valve seat on the fluid outlet and the valve is coupled through a tappet to the electrical switch to open the switch when the valve is lifted off the valve seat.

REFERENCES:
patent: 3321594 (1965-01-01), Reise et al.
patent: 3433910 (1966-07-01), Pravda
patent: 4266697 (1981-05-01), Zissimopoulos
patent: 4357748 (1982-11-01), Branson et al.
patent: 4365124 (1982-12-01), Robinson
patent: 4443671 (1984-04-01), Hinds
patent: 4620073 (1986-10-01), Yokota et al.
patent: 4914264 (1990-04-01), Everett
patent: 5076322 (1991-12-01), Choksi et al.

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