Pressure relief valve and regulator

Details Pressure relief valve and regulator Pressure relief valve and regulator

1986-01-09

1987-08-18

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

Direct response valves

137538, 137494, 267172, 267173, F16K 1500

Patent

active

046870229

ABSTRACT:
A pressure relief valve and regulator in which the valve chamber has a side port for connecting to the pressure line to be monitored. The valve seat opens to an exhaust and has a diameter slightly larger than the chamber diameter. The valve incorporates a double ended piston, spring, and cam whereby the cam offsets the normal compression gradient of the spring by rotating as the piston moves in and out.

REFERENCES:
patent: 306568 (1884-10-01), Wilder
patent: 1716832 (1929-06-01), Odend'Hal
patent: 2280937 (1942-04-01), Thornhill
patent: 2326462 (1943-08-01), Johnson
patent: 4006823 (1977-02-01), Berger
patent: 4356977 (1982-11-01), Hofmann
patent: 4400186 (1983-08-01), Leunig

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