Plug-in safety coupling

Details Plug-in safety coupling Plug-in safety coupling

2008-01-22

2008-01-22

Hewitt, James M. (Department: 3679)

Pipe joints or couplings

Adjustable angle

C285S263000, C285S271000, C285S276000, C251S089500, C251S148000, C251S352000

Reexamination Certificate

active

07320484

ABSTRACT:
A plug-in safety coupling for pressurized conduits includes a blocking element, which is mounted in a coupling housing; the blocking element includes a through bore in which a coupling plug may be introduced in a sealing manner. A pivot path of the coupling housing permits the coupling plug, being introduced into the blocking element, to pivot relative to the housing between a conducting position, in which a through-bore of the blocking element communicates with a compressed air feed bore of the housing, and a blocking position, in which the blocking element blocks the compressed air feed bore. The coupling plug and the blocking element are provided with reciprocally corresponding locking parts to effect a locked retention of the coupling plug in the blocking element.

REFERENCES:
patent: 2632660 (1953-03-01), Krauthamer
patent: 3104897 (1963-09-01), Berger
patent: 3679236 (1972-07-01), Warshawsky
patent: 4180285 (1979-12-01), Reneau
patent: 4397445 (1983-08-01), Burquier
patent: 4989791 (1991-02-01), Ridenour
patent: 5129584 (1992-07-01), Ridenour
patent: 5681027 (1997-10-01), Wuethrich
patent: 5975490 (1999-11-01), Essman
patent: 6059325 (2000-05-01), Heckele et al.
patent: 6123268 (2000-09-01), Chastine
patent: 6705647 (2004-03-01), Palmer
patent: 6827329 (2004-12-01), Mikiya et al.
patent: 0 327 494 (1989-01-01), None
patent: 0 406 203 (1990-06-01), None
patent: WO 94/17322 (1994-08-01), None

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