Pipe gasket with shielded band

Details Pipe gasket with shielded band Pipe gasket with shielded band

1998-08-21

2000-09-05

Melius, Terry Lee

Pipe joints or couplings

Packed

Frictional retention upon insertion

285910, 264322, 277651, F16L 1700

Patent

active

061131598

ABSTRACT:
A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket has a ring shaped body of an elastomeric material and includes a metal reinforcing band. The metal reinforcing band has an angular profile, when viewed in cross-section, with an apex which is embedded within the gasket body but lies in close proximity to an exterior surface of the gasket. The apex provides a reinforced contact point during belling operations but is isolated from surrounding liquids passing through a pipe joint.

REFERENCES:
patent: 2210833 (1940-08-01), Clough
patent: 3315971 (1967-04-01), Sakurada
patent: 3929958 (1975-12-01), Parmann
patent: 4041241 (1977-08-01), Olmstead et al.
patent: 4120521 (1978-10-01), Parmann
patent: 4379559 (1983-04-01), Bohman
patent: 4386045 (1983-05-01), Vaisanen
patent: 4602793 (1986-07-01), Andrick
patent: 4614371 (1986-09-01), Bauder
patent: 4666165 (1987-05-01), Nordin
patent: 4690414 (1987-09-01), Haaland
patent: 4818209 (1989-04-01), Petersson et al.

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