Pressure relief and load check valve assembly

Details Pressure relief and load check valve assembly Pressure relief and load check valve assembly

1977-07-15

1979-01-23

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137491, G05D 1100, F16K 31363

Patent

active

041355415

ABSTRACT:
A valve assembly has a housing, a spool positioned in the housing, and a sleeve positioned about the spool. The housing has an inlet and first and second outlets. The spool is movable between a first position at which communication between the inlet and second outlet is blocked and a second position at which the inlet and second outlet are in communication. The spool is movable to the second position in response to the inlet fluid pressure exceeding a preselected value. The sleeve is movable between a first position at which communication between the first outlet and inlet is blocked and a second position at which the inlet communicates with the first outlet. The sleeve substantially maintains the pressurized fluid in the first outlet while in the first position.

REFERENCES:
patent: 3817276 (1974-06-01), Scheynayder
patent: 3878864 (1975-04-01), Schurger
patent: 3978879 (1976-09-01), Termansen et al.
patent: 3987814 (1976-10-01), Hall
patent: 3989062 (1976-11-01), Tennis

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