Pipe joints or couplings – With means blocking release of holding means
Patent
1996-05-14
1998-03-10
Arola, Dave W.
Pipe joints or couplings
With means blocking release of holding means
285 86, 285319, 285340, 285921, 285906, F16L 3500
Patent
active
057252572
ABSTRACT:
A pipe joint comprises a pipe having a spigot formed with an annular projection on an outer periphery of an end portion of the pipe, a member having a socket including a tubular portion for receiving the spigot therein and formed with an aperture in a peripheral wall of the tubular portion, the socket being internally formed with a bearing portion for receiving and bearing on the annular projection when the spigot is inserted into the socket, a resilient stopper mountable on the tubular portion of the socket and having a fitting portion fittable in the aperture, and a tubular stopper holder capable of covering the stopper. The stopper holder is so fixed as to cover the stopper by a recess formed in an outer surface of the stopper and an inward protrusion formed on the stopper holder and fittable in the recess. The fitting portion of the stopper is fitted into the socket aperture in an inwardly projecting state when the stopper is mounted on the socket tubular portion, and the annular projection of the spigot is fixedly positioned between the bearing portion and the stopper fitting portion when the spigot is inserted into the socket.
REFERENCES:
patent: 3428340 (1969-02-01), Pelton
patent: 3574359 (1971-04-01), Klein
patent: 3922011 (1975-11-01), Walters
patent: 4913467 (1990-04-01), Washizu
patent: 5028080 (1991-07-01), Dennony
patent: 5069489 (1991-12-01), Bartholomew
patent: 5211427 (1993-05-01), Washizu
patent: 5324081 (1994-06-01), Umezawa
Inoue Koichi
Okuda Nobuyuki
Sakane Hideto
Yagi Hisayuki
Arola Dave W.
Honda Giken Kogyo Kabushiki Kaisha
Showa Aluminum Corporation
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