Tube coupling

Details Tube coupling Tube coupling

1986-05-30

1988-03-29

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

2513353, 267122, F16L 2900

Patent

active

047336927

ABSTRACT:
A tube coupling having a socket and a plug, each having a fluid flow passage extending therethrough, and a valve mounted in the flow passage of at least one of the socket and plug for axial movement between a first position for closing the flow passage and a second position for opening the flow passage said valve being normally biased towards the first position by a spring when the socket and plug are disconnected, and moved to the second position when the socket and plug are coupled together, characterized in that at least those portions of the socket and plug which will be exposed to fluid during the use are formed of fluorocarbon resin, the spring being disposed in said flow passage and comprising bellows made of fluorocarbon resin having continuous helically extending pleats.

REFERENCES:
patent: 3741598 (1973-06-01), Novak et al.
patent: 4445539 (1984-05-01), Credle
patent: 4625761 (1986-12-01), Uchida et al.

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