Pipe coupling with improved pull-out restraint

Details Pipe coupling with improved pull-out restraint Pipe coupling with improved pull-out restraint

1998-07-09

2000-08-22

Nicholson, Eric K.

Pipe joints or couplings

Movable jaw

285337, 285348, 285104, F16L 1700

Patent

active

061060291

ABSTRACT:
A pipe coupling for the joining of plain end plastic or metallic pipe that includes an annular follower, a tubular middle ring extending between opposite followers, an annular gasket within the follower contiguous to the middle ring and a restrainer unit within the follower comprising a lock ring having a plurality of arcuately spaced radial slots for slideably supporting individual gripper segments that are operative during tightening installation of the follower about a received pipe end to effect a penetrating restraining grip against the surface of the pipe end.

REFERENCES:
patent: 817300 (1906-04-01), David
patent: 2755109 (1956-07-01), Risley
patent: 2779610 (1957-01-01), Risley
patent: 4070046 (1978-01-01), Felker et al.
patent: 4092036 (1978-05-01), Sato et al.
patent: 4569542 (1986-02-01), Anderson et al.
patent: 4664426 (1987-05-01), Ueki
patent: 5100183 (1992-03-01), Montesi et al.
patent: 5645285 (1997-07-01), Percebois et al.
patent: 5779285 (1998-07-01), Robison
2" IPS Universal Maxi-Hold-By Coupling Systems, Inc. (Dates Unknown).

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