Pipe joint

Details Pipe joint Pipe joint

2004-07-12

2009-02-10

Bochna, David E (Department: 3679)

Pipe joints or couplings

Particular interface

Tapered

C285S249000, C285S323000

Reexamination Certificate

active

07488009

ABSTRACT:
A joint includes a joint main body, a sleeve and a nut. The joint main body has a joining hole and an external threaded part. The nut is threaded onto the external threaded part in a threaded state in which the pipe and the sleeve are inserted through the joining hole. The nut joins the pipe to the joining hole via the sleeve. The sleeve is tightly fitted to the pipe and the joining hole by the threading of the nut to induce deformation that expands radially outward. The deformation prevents insertion of the sleeve into the joining hole to a specific position in an unthreaded state in which the pipe and the sleeve have been pulled out from the joining hole.

REFERENCES:
patent: 1862833 (1932-06-01), Stover
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patent: 3030130 (1962-04-01), Appleton
patent: 3498647 (1970-03-01), Schroder
patent: 3676573 (1972-07-01), Avery
patent: 3746376 (1973-07-01), Gold
patent: 3866958 (1975-02-01), Gold
patent: 3893716 (1975-07-01), Moreiras et al.
patent: 4043576 (1977-08-01), Reich et al.
patent: 4586731 (1986-05-01), Castrup
patent: 6905142 (2005-06-01), Do et al.
patent: 7270349 (2007-09-01), Bamberger et al.
patent: S58-175287 (1983-11-01), None
patent: 61-26705 (1986-08-01), None
patent: 2000-304180 (2000-11-01), None
patent: 2001-159481 (2001-06-01), None

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