Pipe joints or couplings – Particular interface – Tapered
Patent
1996-12-19
1998-03-10
Nicholson, Eric K.
Pipe joints or couplings
Particular interface
Tapered
285354, F16L 1902
Patent
active
057252599
ABSTRACT:
A conduit coupling includes generally cylindrical female, internal and male pieces wherein the female piece has an inner tapered shoulder at an angle and the internal piece has a tapered collar formed at a complimentary angle to the angle for disposal adjacent to the shoulder and an end tapered at another angle and the male piece has a tapered end formed at an angle complimentary to the another angle for disposal adjacent the tapered end of the internal piece.
REFERENCES:
patent: 2547889 (1951-04-01), Richardson
patent: 2850303 (1958-09-01), Bauer
patent: 3195936 (1965-07-01), Conder
patent: 4665876 (1987-05-01), Hasimoto
patent: 4802695 (1989-02-01), Weinhold
patent: 5060988 (1991-10-01), Williamson
patent: 5074599 (1991-12-01), Wirbel
patent: 5242199 (1993-09-01), Hann et al.
patent: 5308122 (1994-05-01), Crawford et al.
Graham R. William
Nicholson Eric K.
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