Connection seal

Details Connection seal Connection seal

1990-01-19

1991-11-05

Nicholson, Eric K.

Pipe joints or couplings

Temperature responsive joint element; e.g., shrunk fit

Memory plastic element

285917, F16L 1504

Patent

active

050626671

ABSTRACT:
A tubular pin member is received within a tubular box member. The pin member includes a reduced diameter portion forming a shoulder having an annular groove in the shoulder. A metal seal ring of aluminum bronze is shrink fitted onto the outer diameter wall of the annular groove. The tubular box member and the tubular pin member have cooperable connection means connecting the tubular members. The metal seal ring sealingly engages the box thereby establishing a metal-to-metal seal between the tubular members. Pressure in the flow bore of the tubular members applies a force to the inner diameter of the metal seal ring to enhance the metal-to-metal sealing engagement between the seal ring and the outer diameter wall and the box.

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patent: 4537406 (1985-08-01), Hirasuna et al.
patent: 4601498 (1986-07-01), Haugen
patent: 4793382 (1988-12-01), Szalvay

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