Self restraining gasket and pipe joint

Details Self restraining gasket and pipe joint Self restraining gasket and pipe joint

2005-12-13

2005-12-13

Nicholson, Eric (Department: 3679)

Pipe joints or couplings

Packed

Externally with clamp

C285S421000, C285S339000, C285S374000, C285S104000, C285S910000

Reexamination Certificate

active

06974160

ABSTRACT:
A restraining element for preventing separation of a pipe joint used to join a bell end of a female plastic pipe to the male end of a mating pipe. The restraining element is formed from a compressible body of elastomeric material, the compressible body having a segmented metal ring located therein with gripping teeth for engaging an outer surface of the mating male pipe. The ring segments making up the segmented metal ring are oriented such that the gripping teeth of the ring segments are out of contact with and initially angled away from the outer surface of the male plastic pipe. The teeth of the annular gasket are forced into engagement with the exterior surface of the male plastic pipe as the pipe joint is assembled. The teeth are oriented to allow movement of the male pipe in a first direction relative to the female bell end opening during assembly, but to resist movement in a opposite direction after the pipe joint has been assembled.

REFERENCES:
patent: 2585453 (1952-02-01), Gallagher et al.
patent: 3381983 (1968-05-01), Hanes
patent: 3963298 (1976-06-01), Seiler
patent: 4848805 (1989-07-01), Bucher et al.
patent: 4867488 (1989-09-01), Jones
patent: 5037144 (1991-08-01), Peting et al.
patent: 5067751 (1991-11-01), Walworth et al.
patent: 5188401 (1993-02-01), Staniforth
patent: 5197768 (1993-03-01), Conner
patent: 5295697 (1994-03-01), Weber et al.
patent: 5297826 (1994-03-01), Percebois et al.
patent: 5431453 (1995-07-01), Yamashita et al.
patent: 5464228 (1995-11-01), Weber et al.
patent: 5476290 (1995-12-01), Bergmann et al.
patent: 5779285 (1998-07-01), Robison
patent: 5803513 (1998-09-01), Richardson
patent: 5951058 (1999-09-01), Dickinson et al.
patent: 6488319 (2002-12-01), Jones
patent: 6502867 (2003-01-01), Holmes, IV et al.
patent: 6505860 (2003-01-01), Trichard
patent: 6688652 (2004-02-01), Holmes et al.
patent: 2003/0025329 (2003-02-01), Saito et al.
patent: 2272264 (1994-05-01), None

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