Fluid handling – Convertible – Unit orientable in a single location between plural positions
Patent
1978-08-31
1980-04-15
Nilson, Robert G.
Fluid handling
Convertible
Unit orientable in a single location between plural positions
91443, 13750518, 137599, F15B 1104, F15B 13042, F16K 1718
Patent
active
041978749
ABSTRACT:
A combination pressure regulating and flow control valve having a first fluid passage interconnecting an upstream port and a downstream port. An adjustable pressure regulating valve is mounted in the first fluid passage to provide a reduced pressure at the downstream port. An adjustable flow control valve is mounted in said first fluid passage for selective provision of either a meter in or meter out action on fluid flowing through said first fluid passage. In parallel with said flow control valve is a spring biased check valve for selective provision of free flow in a direction opposite to the metering action of the flow control valve. A parallel second fluid passage in the valve interconnects the upstream port with the downstream port. Mounted in the second fluid passage is an adjustable, spring loaded pre-exhaust valve which is vented to the upstream port. When a meter out flow takes place from the downstream port through said first fluid passage to the upstream port the pre-exhaust valve is set to allow flow through the parallel second fluid passage until a pre-set pressure at the downstream port is reached and then it closes against flow.
REFERENCES:
patent: Re29292 (1977-07-01), Tennis
patent: 598579 (1898-02-01), Shields
patent: 840876 (1907-01-01), Steedman
patent: 941153 (1909-11-01), Krichbaum
patent: 1210891 (1917-02-01), Blanchard
patent: 2141715 (1938-12-01), Hilger
patent: 2285049 (1942-06-01), Parks
patent: 2495785 (1950-01-01), Stephens
patent: 2499262 (1950-02-01), Stoudt
patent: 2501483 (1950-03-01), Taylor
patent: 2570937 (1951-10-01), Gash
patent: 2881793 (1959-04-01), Lee
patent: 3186307 (1965-06-01), Ellenbogen
patent: 3213886 (1965-10-01), Pearne
patent: 3376792 (1968-04-01), Clarke
patent: 3400735 (1968-09-01), Favors
patent: 3621867 (1971-11-01), Johnson
patent: 3951162 (1976-04-01), Wilke
Mac Valves Inc.
Mentag Robert G.
Nilson Robert G.
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