Pipe joints or couplings – Movable jaw – Wedge bushing
Patent
1987-01-20
1988-02-02
Smith, Gary L.
Pipe joints or couplings
Movable jaw
Wedge bushing
156 731, 285423, 285286, F16L 1702, F16L 4702
Patent
active
047225602
ABSTRACT:
The disclosure relates to a quick release tube couplings in which a collet with resilient arms is arranged to co-operate with a tapering cam surface in a member surrounding the collet to force the arms to grip a tube within the collet. The member is formed from two, male and female parts each having a bore, the male part bore being tapered to provide the cam surface. The male and female parts are assembled with a pair of annular surfaces on the respective parts spaced apart by an edge or projection on one of the surfaces and ultrasonic vibration is applied to soften the ridge to cause the surfaces to weld together and to allow two other opposed annular surfaces to come together and be welded by said ultrasonic vibration to weld the two parts together at two spaced annular region.
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Nicholson Eric K.
Smith Gary L.
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