Coupling element for removably joining pipes

Details Coupling element for removably joining pipes Coupling element for removably joining pipes

2007-05-24

2010-06-08

Dunwoody, Aaron M (Department: 3679)

Pipe joints or couplings

Essential catch

With manipulator

C285S402000

Reexamination Certificate

active

07731243

ABSTRACT:
A female coupling element includes two superposed coaxial rings, a locking ring and safety ring which are rotatably mounted about a body of the coupling element. The locking ring is axially immobilized with respect to the body while the safety ring is able to slide with respect to the locking ring and with the body. The locking ring (2) has at least one locking slot for receiving a projection of a second element inserted within the coupling element and a notch to lock the projection axially with respect to the coupling element, and the safety ring includes at least one safety slot having a notch which locks the projection circumferentially in the notch of the locking ring.

REFERENCES:
patent: 2032196 (1936-02-01), Blake
patent: 2076918 (1937-04-01), Robison
patent: 3470524 (1969-09-01), Culver
patent: 5056560 (1991-10-01), DeMartelaere
patent: 5253716 (1993-10-01), Mitchell
patent: 5741084 (1998-04-01), Del Rio et al.
patent: 6497435 (2002-12-01), Luft et al.
patent: 1 164 327 (2001-12-01), None
patent: 1 526 167 (1968-05-01), None
patent: 1 580 284 (1969-09-01), None

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