CLAMPING MECHANICAL PIPE COUPLING DERIVED FROM A STANDARD FITTING

Title:

CLAMPING MECHANICAL PIPE COUPLING DERIVED FROM A STANDARD FITTING

Document Type and Number:

WIPO Patent Application WO/2004/046602

Kind Code:

A1

Abstract:

A coupling for joining pipe segments together is disclosed. The coupling is derived frorn a standard fitting and has a housing with a socket and a first expanded region adjacent to the socket and a second expanded region adjacent to the first expanded region. A sealing member is positioned in the first expanded region, a retainer is positioned in the second expanded region and a support washer having transversely oriented radial and coaxial flanges is positioned adjacent to the retainer. A clamping tab turned inwardly on the second expanded region overlaps the radial flange and clamps the support washer and retainer against a shoulder within the second expanded region thereby also capturing the sealing member within the coupling. The retainer has a plurality of radial teeth angularly oriented to engage a pipe and prevent its removal from the coupling. The teeth are twisted about their longitudinal axes.

Inventors:

SNYDER RONALD R SR (US)
WILK CHARLES E JR (US)
THAU LAWRENCE W JR (US)
DOLE DOUGLAS R (US)
CAROM TERRANCE M (US)

Application Number:

PCT/US2003/034983

Publication Date:

June 03, 2004

Filing Date:

November 03, 2003

Export Citation:

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Assignee:

VICTAULIC CO OF AMERICA (US)
SNYDER RONALD R SR (US)
WILK CHARLES E JR (US)
THAU LAWRENCE W JR (US)
DOLE DOUGLAS R (US)
CAROM TERRANCE M (US)

International Classes:

F16L19/08; F16L37/091; (IPC1-7): F16L17/00

Foreign References:

US4613172A	1986-09-23
US6464266B1	2002-10-15
US5160175A	1992-11-03
US5695224A	1997-12-09
US5792990A	1998-08-11