Automatic compressed air economizer device intended to be mounte

Details Automatic compressed air economizer device intended to be mounte Automatic compressed air economizer device intended to be mounte

1988-03-18

1989-01-03

Levy, Stewart J.

Measuring and testing

With fluid pressure

Dimension, shape, or size

G01B 1310

Patent

active

047947861

ABSTRACT:
An automatic compressed air economizer mounted on a pneumatic comparator has a measuring capsule, a measuring element pneumatically connected to the measuring capsule and a source of filtered gas. The economizer includes a distribution unit, a valve distributor for permitting selective flow of filtered gas, a regulating jet, a measuring jet and an economizer jet. A circuit selector selectively and alternatively pneumatically connects the measuring jet to each of the economizer jet and the valve distributor, in response to the valve distributor. A manostatic relay has a pneumatic input connected between the measuring capsule and the measuring jet, and has an output pneumatically connected to the valve distributor, so that a pressure change in the measuring capsule due to a measuring operation causes the manostatic relay to actuate the valve distributor.

REFERENCES:
patent: 3253456 (1966-05-01), Berglund
patent: 3477276 (1969-11-01), Fortier
patent: 4550592 (1985-11-01), Dechape

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