Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1984-11-01
1986-12-02
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
13761401, 2511498, F16L 3728
Patent
active
046257616
ABSTRACT:
A corrosion-resistant, quick disconnecting coupling assembly for piping use consisting of a female coupling and a male coupling for causing or stopping the conduction of a fluid by connection or disconnection between both is provided. The female coupling and the male coupling comprise each an exterior coupling body, a cylindrical valve member mounted in the body so as to form an annular closed chamber enclosed by the former two, which member has therethrough communicating transverse and longitudinal holes as a flow path of the fluid and a spring housed in the chamber so as to be compressible or extensible. The valve member is wholly or partially slidable. The one valve member may consist of a fixed valve and a slidable valve sleeve and the other valve member may be a slidable poppet valve. Each of the valve members may be a poppet valve which is slidable. O-rings are incorporated to avoid leakage of fluid to the spring chambers and to ensure a leak-tight seal of the fit portions of both the couplings upon connection. The female and male bodies and the female and male valve members are made of a synthetic plastic, preferably a fluoroplastic, the O-rings of the female and male couplings are made of a synthetic rubber, preferably a fluororubber, and the female and male springs are coated with a synthetic plastic, preferably a fluoroplastic.
REFERENCES:
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patent: 4219048 (1980-08-01), Ekmon
Arita Teiji
Matsumoto Hisayuki
Uchida Tatsuro
Chambers A. Michael
Daikin Industries
Yokohama Aeroquip Co. Ltd.
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