Method of forming a metal to metal seal between two confronting

Details Method of forming a metal to metal seal between two confronting Method of forming a metal to metal seal between two confronting

1997-08-21

1999-08-31

Knight, Anthony

Seal for a joint or juncture

Process of static sealing

Pipe, conduit, or cable

277603, 277607, 277626, 277627, 2853342, 285370, E21B 1708, F16L 2316

Patent

active

059443197

ABSTRACT:
A metal to metal seal and a method of forming the same includes providing a pair of opposed clamping faces. Each of the clamping faces surround apertures. Seal grooves serve to widen each of the apertures. Each of the seal grooves have truncated angular corners. A malleable metal sealing ring is positioned in the seal grooves. The sealing ring has truncated angular outer edges complementary to the truncated angular corners in the seal grooves. The clamping faces are clamped together in face to face relation to energize the sealing ring. The sealing ring has an enlarged inner diameter to create an deflectable edge at the truncated annular edges. The subsequent application of internal pressure serves to promote deflection of the metal sealing ring at the truncated angular edges and further energize the sealing ring.

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