Self-aligning tube fitting

Details Self-aligning tube fitting Self-aligning tube fitting

1979-09-06

1981-04-21

Callaghan, Thomas F.

Pipe joints or couplings

With fluid pressure seal

Flexible lip

2853344, F16L 1900

Patent

active

042629411

ABSTRACT:
A gas-tight fitting which is an improvement over the lip-seal fitting shown in U.S. Pat. No. 3,672,704 (Roger D. Christianson, inventor). The fitting includes three parts which are a nut, a sleeve, and a threaded nipple. The sleeve ends in an annular flange having an arched cross section which rests upon a seat on said nipple when said nut is tightened into position. Between the flange and the sleeve proper, there is a neck which terminates at its top in a spherically arcuate section which is complementary to a similar section in the nut. Together, the spherical sections form a swivel joint to accommodate axial misalignments.

REFERENCES:
patent: 3672704 (1972-06-01), Christianson
patent: 3891246 (1975-01-01), Hopper
patent: 4025092 (1977-05-01), Wakefield

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