Relief valve

Details Relief valve Relief valve

1975-08-25

1977-08-30

Michell, Robert W.

Fluid handling

Systems

Flow path with serial valves and/or closures

128351, 128349BV, 137508, 141 46, 141302, F16K 1120

Patent

active

040447936

ABSTRACT:
A relief valve having a main passage normally closed with a main valve member and a vent passage normally closed with a vent valve member, the vent valve member being constructed to open the vent passage upon application of a predetermined pressure into the main valve passage to thereby prevent application of greater than said predetermined pressure to the outlet of the valve is disclosed.

REFERENCES:
patent: 1608618 (1926-11-01), Richards
patent: 3229716 (1966-01-01), Johnson et al.
patent: 3406682 (1968-10-01), Engstrom
patent: 3478743 (1969-11-01), Ericson
patent: 3491786 (1970-01-01), Crossman et al.
patent: 3794043 (1974-02-01), McGinnis
patent: 3841348 (1974-10-01), O'Neill
patent: 3910270 (1975-10-01), Stewart

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