Pipe fitting

Details Pipe fitting Pipe fitting

1994-08-01

1995-07-18

Arola, Dave W.

Pipe joints or couplings

End to side or plate

Screw

2853323, F16L 502

Patent

active

054334896

ABSTRACT:
A pipe fitting for use with fluid-holding apparatuses has a thread that matches any of several different types of pipe threads of the same diameter. Imperfect sealing is eliminated by simple means by taking advantage of a small chamfered area that is provided at the outer end of an internally threaded bore. An external thread matching several different types of internal pipe threads of the same diameter has a flared surface tapered at an angle of approximately 90 degrees at its base. A sealing member to seal the clearance between the pipe fitting and the internal thread in the fluid-holding apparatus provided at a point corresponding to the chamfered area that is positioned slightly outside the periphery of the outermost root of the internal thread cut in its outer end.

REFERENCES:
patent: 3160427 (1964-12-01), Natho
patent: 3489438 (1970-01-01), McClure
patent: 4209193 (1980-06-01), Ahlstone
patent: 4280721 (1981-07-01), Norkon
patent: 4531767 (1985-07-01), Andreolla
patent: 4770448 (1988-09-01), Strickland et al.
patent: 4934742 (1990-06-01), Williamson
patent: 5165731 (1992-11-01), Kimuta

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