Valve system timing device for pipes carrying liquid under press

Details Valve system timing device for pipes carrying liquid under press Valve system timing device for pipes carrying liquid under press

1984-05-17

1986-10-07

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137629, 13763014, 251 25, 251 635, F16K 100

Patent

active

046153543

ABSTRACT:
A valve system timing device for pipes carrying fluid under pressure operable to control a fluid, so as to define an upstream and a downstream fluid pipe includes a first or by-pass shutter provided with a modulating flowrate limiting device for slowly pressurizing the downstream fluid pipe, a second or operating shutter operable in a self-actuating manner, and an actuator operated by the fluid under pressure, and opening the operating shutter when the differential pressure between the upstream and downstream pipes is decreased.

REFERENCES:
patent: 680852 (1901-08-01), Foster
patent: 948445 (1910-02-01), Golden
patent: 2333455 (1943-11-01), Warren
patent: 2888953 (1959-06-01), Gratzmoller
patent: 3166500 (1965-01-01), Noakes
patent: 3631888 (1972-01-01), Anton
patent: 3631894 (1972-01-01), Frantz
patent: 4075928 (1978-02-01), Bitonti

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