Valves and valve actuation – With means to increase head and seat contact pressure – Fluid pressure
Patent
1976-07-29
1978-03-14
Schwadron, Martin P.
Valves and valve actuation
With means to increase head and seat contact pressure
Fluid pressure
251251, 251257, 2853342, 285355, F16k 2500
Patent
active
040787648
ABSTRACT:
A plumbing valve having a plastic body with a lateral outlet and adapted for threaded connection with a metal pipe and including a resilient seal engaged and compressible upon connection of said valve body and pipe to maintain a seal therebetween incident to varying rates of expansion and contraction of said valve body and pipe with temperature changes. The valve has a rotatable actuator with an eccentric longitudinal part mounting a resilient tube having a portion pressed into contact with the cavity of the body to seal the outlet in one position and a second longitudinal part spaced from said concentric part and cooperating therewith to confine a part of said tube against radial expansion incident to liquid pressure from said metal supply pipe and retaining said tube against endwise displacement on said eccentric part.
REFERENCES:
patent: 1548533 (1925-08-01), Laderer
patent: 2349081 (1944-05-01), Douglass
patent: 2534577 (1950-12-01), Courtot
patent: 2775471 (1956-12-01), Douglass
patent: 3136336 (1964-06-01), Priesmeyer
patent: 3195573 (1965-07-01), Daumy
patent: 3338597 (1967-08-01), Mason
patent: 3386700 (1968-06-01), Greene et al.
patent: 3645493 (1972-02-01), Manorgian et al.
Qest Products, Inc.
Schwadron Martin P.
Walton G. L.
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