Pipe joints or couplings – Friction detent
Patent
1988-11-18
1990-12-18
Arola, Dave W.
Pipe joints or couplings
Friction detent
285317, 285321, 285906, F16L 3500
Patent
active
049781502
ABSTRACT:
A quick disconnect coupling having a socket and a plug. In one embodiment, the plug has an outwardly projecting ring at its end that is captured behind a plurality of pins or an inwardly stepped shoulder formed in the socket in order to prevent the plug from being withdrawn from the socket. The plug is releasably retained in the socket by a variety of means, including a resilient ring surrounding the plug that tightly fits into a stepped shoulder formed in the socket or circumferentially spaced ball bearings mounted on either the plug or the socket and biased into a groove formed on the socket or plug, respectively. In another embodiment of the invention, the plug is formed by a cylindrical sleeve on which retaining fingers are pivotally mounted. The retaining fingers each terminate in a respective retaining tab that is captured behind an inwardly stepped shoulder formed in the socket. The retaining fingers releasably retain the plug in the socket so that it may be removed by pulling it axially from the socket. An actuating member surrounds the sleeve adjacent the retaining tabs. In the event of pivotal movement of the sleeve, the actuating member contacts the inside surface of at least one retaining tab to prevent the retaining tab from being released from the socket.
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Arola Dave W.
The Boeing Company
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