Method of manufacturing a seal and restraining system

Details Method of manufacturing a seal and restraining system Method of manufacturing a seal and restraining system

2007-10-23

2007-10-23

Cozart, Jermie E. (Department: 3726)

Metal working

Method of mechanical manufacture

Assembling or joining

C029S450000, C029S453000, C285S374000, C277S314000, C277S626000

Reexamination Certificate

active

11120550

ABSTRACT:
A method and apparatus for restraining pipe against both internal and external forces at a pipe or fitting connection and to join and seal at least two pipes to form a pipeline is shown featuring an improved restraining and sealing mechanism. The restraining and sealing mechanism includes a circumferential housing and a companion sealing ring which are received within a mating groove provided in the belled end of a female pipe. The circumferential housing has an interior region which contains a gripping ring insert. The sealing ring and housing are integrally located within a belled pipe end during belling operations.

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patent: 6488319 (2002-12-01), Jones
patent: 0 748 973 (1996-12-01), None

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