Valves and valve actuation – With correlated flow path – Valve operated by motion of flow path
Patent
1986-04-30
1987-10-20
Chambers, A. Michael
Valves and valve actuation
With correlated flow path
Valve operated by motion of flow path
285305, 285321, F16L 3728
Patent
active
047009268
ABSTRACT:
A pipe coupling having an annular recess in the body portion of a first coupling part, a transverse slot in a second coupling part across the hollow interior thereof, the slot including a slot base wall across one end thereof and being open to the exterior of the second coupling part at the other end thereof, and a release bar in the slot, the release bar including an aperture therethrough of a diameter similar to the diameter of the first coupling part body portion, and including a top portion protruding from the other end of the slot, the release bar being reciprocally movable within the slot across the hollow interior of the second coupling part towards and away from the slot base, between a first position wherein the aperture in the release bar is substantially aligned with the hollow interior such that the body portion of the first coupling part can be entered into or removed from the hollow interior and a second position wherein the aperture is offset from the hollow interior such that an operative portion of the release bar adjacent the periphery of the aperture engages the annular recess of the first coupling part when same is received in the hollow interior, to retain same therein, and the release bar being resiliently urged towards the second position and manually movable therefrom to the first position by pressure application to the protruding top portion of the release bar.
REFERENCES:
patent: 3773360 (1973-11-01), Timbers
patent: 4039213 (1977-08-01), Walters
patent: 4114853 (1978-09-01), Medvick
patent: 4244608 (1981-01-01), Stuemky
patent: 4564042 (1986-01-01), Ekman
patent: 4576359 (1986-03-01), Oetiker
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