Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1990-02-08
1990-11-27
Cohan, Alan
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
13750546, 13750547, 251118, G05D 1606
Patent
active
049728687
ABSTRACT:
A metallic gas pressure regulator includes a spring casing and a lower casing, sandwiching a diaphragm. The lower casing has axially aligned inlet and outlet ports. A one piece plastic cam stem and relief seat is mounted for movement with the diaphragm and includes a cam surface engaging a movable plastic disk holder. The disk holder is movable within a plastic orifice tube that supports a plastic valve seat. The orifice tube has a removable plastic boost end cap for providing a boost action to the diaphragm. A pressure relief mechanism is incorporated within the upper portion of the diaphragm. A metal disk is affixed in the inlet and includes a flow restricting hole and a flow diverter for directing flow toward the pressure relief mechanism in the event of destruction of the plastic orifice tube.
REFERENCES:
patent: 1893254 (1933-01-01), Sweeney
patent: 1934832 (1933-11-01), Temple
patent: 2263011 (1941-11-01), Carnes
patent: 2967536 (1961-01-01), Stratman
patent: 3086548 (1963-04-01), Galiger et al.
patent: 3207175 (1965-09-01), Pauly
patent: 3633611 (1972-01-01), MacNeil
patent: 4842013 (1989-06-01), Rice et al.
patent: 4889158 (1989-12-01), Rice et al.
Davis David B.
Rice Donald D.
Woollums David E.
Camasto Nicholas A.
Cohan Alan
Cole Arnold H.
Fisher Controls International Inc.
Kubly Dale A.
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