PIPE FITTING ELEMENT, PARTICULARLY FOR PLASTIC PIPES

Title:

PIPE FITTING ELEMENT, PARTICULARLY FOR PLASTIC PIPES

Document Type and Number:

WIPO Patent Application WO2001031243

Kind Code:

A3

Abstract:

The invention relates to a pipe fitting element, comprising a tubular fit-in sleeve (1) which can be fitted into an end of a pipe (2) to be connected, and a clamping ring nut (10), coaxial to the sleeve (1), the pipe (2) being arranged to be clamped by tightening the ring nut (10) on the sleeve (1) and translating it towards the pipe (2) while drawing two clamping surfaces (5, 13) mutually closer, the one situated on the outer surface of the sleeve (1) and the other situated on the inner surface of the ring nut (10). According to the invention, these clamping surfaces (5, 13) consist of progressive widenings (105, 113) of the outside diameter of the sleeve (1) and of the inside diameter of the end of the ring nut (10) turned towards the pipe (2). The invention also relates to a pipe joint, which has at each end a pipe fitting element of the above described type.

Inventors:

GIUFFRE CARMELO (IT)

Application Number:

PCT/EP2000/004727

Publication Date:

October 17, 2002

Filing Date:

May 24, 2000

Export Citation:

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Assignee:

IRRITEC S R L (IT)
GIUFFRE CARMELO (IT)

International Classes:

F16L47/04; (IPC1-7): F16L47/04

Foreign References:

GB1301057A	1972-12-29
BE535526A
FR1141189A	1957-08-27
US5622393A	1997-04-22
FR1267065A	1961-07-17
US4749217A	1988-06-07

Other References: