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Patent Searching and Data


Title:
PIPE CLAMP WITH SLEEVE AND GASKET
Document Type and Number:
WIPO Patent Application WO/2011/025935
Kind Code:
A3
Abstract:
A pipe clamp that includes a band, tightening mechanism for the band, a split sleeve within the band, and gasket located inside a circumferential channel in the split sleeve. The split sleeve includes a tongue-and-groove joint in which said tongue has at least one side edge that confronts and engages a side edge of the groove during penetration of the tongue into the groove in response to tightening of the outer band using the fastening mechanism. This provides a metal-to-metal seal at the tongue-and-groove join. The relative construction of the tongue and groove is such that during penetration of the tongue into the groove, there are areas of spaced separation between the confronting side edges of the tongue and groove. Also during tightening the gasket is forced into these areas of spaced separation which provides a second, gasketed seal at the tongue-and-groove joint.

Inventors:
GEESE BRIAN T (US)
IGNACZAK BRIAN T (US)
Application Number:
PCT/US2010/046944
Publication Date:
April 28, 2011
Filing Date:
August 27, 2010
Export Citation:
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Assignee:
NORMA US HOLDING LLC (US)
GEESE BRIAN T (US)
IGNACZAK BRIAN T (US)
International Classes:
F16L21/08; F16L21/02; F16L21/025; F16L21/06
Foreign References:
KR20040080334A2004-09-18
KR760000038Y1
JP2003502597A2003-01-21
KR20070104932A2007-10-29
Other References:
See also references of EP 2470818A4
Attorney, Agent or Firm:
STEVENS, James, D. (P.O. Box 4390Troy, MI, US)
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