Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1992-11-03
1994-03-08
Nicholson, Eric K.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285308, 285340, F16L 3712
Patent
active
052921573
ABSTRACT:
A detachable push-in connector for semirigid pipes, consisting of housing (1) having a through hole (2) and a plurality of cavities increasing step-wise in size to receive a pipe (3), and a sealing ring (7). Sealing ring (7) is preceded, in the push-in direction of pipe (3), by a retaining ring (14) having inwardly projecting spring tongues (16) capable of opening out elastically and that is held in place by a supporting ring (17). Tongues (16) form a flat truncated cone whose tip points in in the push-in direction. Between retaining ring (14) and sealing ring (7) is a stop ring (9) having a conically bevelled inner portion in the region of spring tongues (16) to permit them to open out. A disconnecting ring (22) axially slidable relative to supporting ring (17) is disposed upstream of retaining ring (14) in the push-in direction and has a conical forward edge (23) for spreading out spring tongues (16) of retaining ring (14 ) when disconnecting ring (22) is pressed into housing (1). To prevent disconnecting ring (22) from being accidentally pressed in, the ring's rear edge (29) is recessed inwardly of the connector and the outer edge (30) of supporting ring (17).
REFERENCES:
patent: 4288113 (1981-09-01), Saulnier
patent: 4712810 (1987-12-01), Pozzi
patent: 4895395 (1990-01-01), Ceriani
patent: 4919457 (1990-04-01), Moretti
patent: 4927185 (1990-05-01), McNaughton
patent: 4979765 (1990-12-01), Bartholomew
patent: 4993755 (1991-02-01), Johnston
patent: 5161834 (1992-11-01), Norkey
A. Raymond & Cie
Nicholson Eric K.
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