Pipe joint

Details Pipe joint Pipe joint

1996-05-15

1998-02-24

Arola, Dave W.

Pipe joints or couplings

Particular interface

285906, 285917, F16L 2500

Patent

active

057205051

ABSTRACT:
A pipe joint comprises a pair of tubular joint members, an annular gasket interposed between abutting end faces of the joint members, and a nut for joining the joint members. A seal projection is formed on the abutting end face of each joint member at a position radially outward of an inner periphery of the end face. When an end of the seal projection is brought into contact with an end face of the gasket by tightening the nut, a clearance is formed between an outer flat portion of the abutting end face of each joint member and the gasket end face opposed thereto. The clearance is greater than a clearance between an inner flat portion of the abutting end face of each joint member and the gasket end face opposed thereto, and is eliminated when the nut is completely tightened up.

REFERENCES:
patent: 1834581 (1931-12-01), Ferrell et al.
patent: 5251941 (1993-10-01), McGarvey
patent: 5340170 (1994-08-01), Shinohara et al.
patent: 5366261 (1994-11-01), Ohmi et al.
patent: 5482332 (1996-01-01), Ohmi et al.

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