Self closing safety gate valve for viscous fluids

Details Self closing safety gate valve for viscous fluids Self closing safety gate valve for viscous fluids

1974-07-22

1976-06-22

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

Spring

137377, 251310, 251313, F16K 2500

Patent

active

039647285

ABSTRACT:
A self closing safety gate valve controls the flow of heavy, viscous fluids such as machine oil, rubber cement, lacquer, or the like. The valve housing contains a rotor with a spring biased thrust exerted laterally against the rotor, to hold it--in normal position--against the housing wall with a metal-to-metal seal at the output orifice. When the rotor turns, a pair of large output orifice openings, in the housing and rotor, are aligned--in off-normal position--in order to enable the out flow of fluid. A spring biased handle automatically returns the rotor from the off-normal to the normal position, where the thrust again presses the rotor body against the large output orifice opening in the housing.

REFERENCES:
patent: 1179387 (1916-04-01), Anschutz
patent: 1267489 (1918-05-01), Wray
patent: 2391278 (1945-12-01), Stark
patent: 2566071 (1951-08-01), Schobert
patent: 2893683 (1959-07-01), Lane
patent: 2979076 (1961-04-01), Kish
patent: 3212752 (1965-10-01), Kast
patent: 3353785 (1967-11-01), Eggers
patent: 3863662 (1975-02-01), Zehr

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