Pipe coupling

Details Pipe coupling Pipe coupling

1993-07-10

1994-09-06

Schwadron, Martin P.

Fluid handling

Systems

Flow path with serial valves and/or closures

285316, F16L 3728

Patent

active

053438922

ABSTRACT:
A freely-detachable pipe coupling comprising a socket having plural slits each formed at a plug-connected front end area of the socket, extending in the circumferential direction of the socket, and also having stopper members each capable of coming into and out of its corresponding slit in the radial direction of the socket, a plug having a stopper groove round it to elastically stop and hold the plural stopper members therein and also having a portion whose outer diameter is substantially equal to the inner diameter of that plug-connected front end of the socket where the slits are formed, said portion of the plug serving to partly project the stopper members outside from the slits of the socket before the plural stopper members are elastically stopped and held in the stopper groove, and a sleeve freely slidably fitted onto the plug and forwarded to press the stopper members to the axial center of the socket, when the plug is pushed into the socket, to thereby elastically stop and hold the stopper members in the stopper groove of the plug, wherein each of the slits has a guide groove which is formed on the inner face of the socket, extending, parallel to the axial line of the socket, from a front side of the slit, and each of the stopper members has a stopper projection shiftable in the guide groove in the radial direction of the socket.

REFERENCES:
patent: 4026581 (1977-05-01), Pasbrig
patent: 4485845 (1984-12-01), Brady
patent: 5120085 (1992-06-01), Shin
patent: 5144979 (1992-09-01), Shobuzako et al.

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