Pipe lap joint with improved sealing slot for increased...

Details Pipe lap joint with improved sealing slot for increased... Pipe lap joint with improved sealing slot for increased...

2007-07-24

2007-07-24

Bochna, David (Department: 3679)

Pipe joints or couplings

Deformed

C285S403000, C285S420000, C029S890140

Reexamination Certificate

active

11243234

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.

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patent: 6877780 (2005-04-01), Potts et al.
patent: 7025393 (2006-04-01), Amedure et al.

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