Title:
PIPE LAP JOINT WITH IMPROVED SEALING SLOT FOR INCREASED CIRCUMFERENTIAL CLOSURE
Document Type and Number:
WIPO Patent Application WO2006041752
Kind Code:
A3
Abstract:
A pipe lap joint for use with vehicle exhaust systems which includes an inside pipe end telescopically inserted into an outside pipe end with the pipe ends secured together by a band clamp. The outside pipe end includes a sealing zone having a collapsible sealing slot that enables the outside pipe end to be drawn tight over the outside surface of the inside pipe end via the band clamp to thereby provide a fluid-tight seal between the pipes. The sealing slot extends from an open end of the outside pipe end and includes a pair of opposing sidewalls each having a tooth and recess. As the band clamp is tightened, the sealing slot collapses such that the teeth of the sidewalls move into the opposing, complementarily-shaped recesses, while adjoining circumferential edges of the teeth engage each other to thereby form a fluid seal.
Inventors:
IGNACZAK BRIAN T (US)
POLASKI ALAN (US)
POLASKI ALAN (US)
Application Number:
PCT/US2005/035396
Publication Date:
December 28, 2006
Filing Date:
October 04, 2005
Export Citation:
Assignee:
BREEZE TORCA PRODUCTS LLC (US)
IGNACZAK BRIAN T (US)
POLASKI ALAN (US)
IGNACZAK BRIAN T (US)
POLASKI ALAN (US)
International Classes:
F16L25/00
Foreign References:
| US6435565B2 | 2002-08-20 | |||
| US6199921B1 | 2001-03-13 | |||
| US6089624A | 2000-07-18 | |||
| US5944365A | 1999-08-31 | |||
| US5588680A | 1996-12-31 | |||
| US4629226A | 1986-12-16 | |||
| US4113289A | 1978-09-12 |
Other References:
See also references of EP 1797363A4
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