Self-centering, self-seating, double-sealing, interference fit t

Details Self-centering, self-seating, double-sealing, interference fit t Self-centering, self-seating, double-sealing, interference fit t

1994-12-16

1996-04-30

Nicholson, Eric K.

Pipe joints or couplings

Deformed

Outwardly expanded

285915, 2853822, 285399, F16L 1314

Patent

active

055118313

ABSTRACT:
The step of soldering, brazing, or welding a tube joint may be eliminated in a tube joint construction that includes a male tube member (10) having a first cylindrical section (14) of relatively lesser diameter and an adjacent, second cylindrical section (18) of relatively larger diameter. Also included is a female joint element (12) having an internal passage (30) which includes an emerging cylindrical section (32) of a diameter just less than the relatively larger diameter and an adjacent, interior cylindrical section (34) of a diameter just less than the relatively lesser diameter. The male tube member (10) is interference fitted into the female joint element (12) to provide a sealed joint without the need for soldering, brazing, or welding. A back-up seal in the form of an adhesive bead (38) may be disposed at the tapered end (28) of the female joint element (12) if desired.

REFERENCES:
patent: 3909045 (1975-09-01), Meagher
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patent: 4076167 (1978-02-01), Wright
patent: 4095825 (1978-06-01), Butler
patent: 4145068 (1979-03-01), Toyomasu et al.
patent: 4502532 (1985-03-01), Tomozaki et al.
patent: 4505017 (1985-03-01), Schukei
patent: 4648616 (1987-03-01), Diekman et al.
patent: 4696499 (1987-09-01), Butler
patent: 5090837 (1992-02-01), Mower
patent: 5211221 (1993-05-01), Lease

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