Apparatus and method for sealing a tube joint

Details Apparatus and method for sealing a tube joint Apparatus and method for sealing a tube joint

1982-10-13

1984-11-06

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277190, F16J 1508, F16L 3311

Patent

active

044808410

ABSTRACT:
An apparatus for sealing a joint between two substantially collinear tubes (12,14) is provided. Particularly useful for repairing a welded joint which has developed a crack (20) in the area of the weld (18), the apparatus provides a sleeve (26) which fits closely over the cracked joint. A housing (32), surrounding the sleeve (26), and a thrust ring (38) act to compress packing rings (28,30) against the sleeve to form a fluid-tight seal over the leaking joint. The sealing nut (40) maintains compression on the packing rings (28,30) when the installation apparatus (50,60,70) is removed. A method for installing the sealing apparatus is also disclosed herein.

REFERENCES:
patent: 3207523 (1965-09-01), Johnson
patent: 3479063 (1969-11-01), Rauer
patent: 3971566 (1976-07-01), Levinsohn
patent: 4193604 (1980-03-01), Saraunne
patent: 4281841 (1981-08-01), Kim et al.

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