Metal seal ring for tubular joint

Details Metal seal ring for tubular joint Metal seal ring for tubular joint

1996-11-01

1998-11-24

Knight, Anthony

Pipe joints or couplings

Particular interface

Tapered

2853322, 285350, 277603, 277608, F16L 1708, F16L 1710

Patent

active

058397655

ABSTRACT:
A tubular joint has a pair of tubular members (10, 12) with end hubs (14, 16) in opposed relation and secured by a clamp (22). A primary seal ring (40) has external tapered sealing surfaces (42, 44) engaging internal tapered sealing surfaces (28, 30) on the hubs (14, 16) to provide a primary seal. Secondary sealing surfaces (32, 36) on the hubs (14, 16) are engaged by O-rings (62, 64) as shown in FIG. 4 to seal against external fluid flow to the seal ring (40). O-rings (62, 64) permit internal fluid flow outwardly from the seal ring (40) as shown in FIG. 3.

REFERENCES:
patent: 2614793 (1952-10-01), Storm
patent: 3265412 (1966-08-01), Reid et al.
patent: 3329447 (1967-07-01), Hitz
patent: 4361331 (1982-11-01), Kohler
patent: 4470609 (1984-09-01), Poe
patent: 4474381 (1984-10-01), Wilkens et al.

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