Fluid flow control devices

Details Fluid flow control devices Fluid flow control devices

1973-06-14

1978-03-07

Weakley, Harold W.

Fluid handling

Larner-johnson type valves; i.e., telescoping internal valve...

137220, 13750518, 251282, F16K 31124

Patent

active

040774252

ABSTRACT:
Fluid flow control devices comprise a cylinder and a piston movable therein in accordance with the pressure at the outlet of the device. The piston rod is fixed to a regulating sleeve which moves with the piston to enlarge or restrict a passageway from the inlet to the outlet in accordance with the outlet pressure. In several of the described embodiments, the regulating sleeve is also effective to completely close the passageway and thereby to act as an on-off valve, should the upstream water flow be terminated.

REFERENCES:
patent: 2970806 (1961-02-01), Rexford
patent: 3035607 (1962-05-01), Quenneville
patent: 3035608 (1962-05-01), Ray
patent: 3251376 (1966-05-01), Worden
patent: 3438391 (1969-04-01), Yocum
patent: 3533434 (1970-10-01), Smith
patent: 3654950 (1972-04-01), Hamm

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