Adjustable pressure and vacuum limit switch valve

Details Adjustable pressure and vacuum limit switch valve Adjustable pressure and vacuum limit switch valve

1980-05-27

1982-03-02

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 815, 200 82C, H01H 3534

Patent

active

043179711

ABSTRACT:
An electrical limit switch valve, having an essentially rigid plastic structural composition, is adapted to conductively secure a fluid flow pipe. A covering flexible elastic membrane diaphragm separates a valve base and piped fluid from a spring loaded ON-OFF electrical switch. The push button detent of the ON-OFF switch is operated normal to the valve bore axis. A valve plug slidably moves on the valve bore axis, the plug bonded at the first valve plug face to the second face of the flexible diaphragm, and the valve plug stem operates the push button detent of the ON-OFF switch. An adjustable actuating first pressurizing spring, coaxially disposed in the valve top housing along the valve bore axis regulates the fluid pressure at which the ON-OFF switch is actuated. An adjustable second pressurizing spring positioned normal to the valve bore axis is adapted to operate on a second spindle controlling the valve plug movement at fluid pressures below atmosphere pressure, in the fluid flow pipe.

REFERENCES:
patent: 1273577 (1918-07-01), Carroll
patent: 2418508 (1947-04-01), Goepfrich
patent: 2803713 (1957-08-01), Bloom
patent: 3516279 (1970-06-01), Maziarka
patent: 3610852 (1971-10-01), Lejeune
patent: 3657501 (1972-04-01), Hoyt
patent: 3848517 (1974-11-01), Hawke

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