Fluid pressure relay and output booster

Details Fluid pressure relay and output booster Fluid pressure relay and output booster

1977-10-11

1979-05-01

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

Plural series units

137 85, G05D 1600

Patent

active

041518560

ABSTRACT:
A primary element is connected to a control element of a first fluid pressure relay to move the element to positions at which pressure fluid outputs of relatively small volumes will be generated to represent the element positions. The pressure fluid outputs of the first relay are directed to the input of a second relay which generates pressure values for pressure fluid which are proportional to the first relay outputs in, and at, relatively larger volumes of the pressure fluid.

REFERENCES:
patent: 2800913 (1957-07-01), Swartwort
patent: 2880705 (1959-04-01), Schneider
patent: 3371686 (1968-03-01), Bueler
patent: 3536089 (1970-10-01), Sarback

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