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Patent Searching and Data


Title:
PIPE COUPLING
Document Type and Number:
WIPO Patent Application WO/2014/144026
Kind Code:
A3
Abstract:
A pipe coupling for connecting adjacent pipes. The pipe coupling has a connection type at each end that may be male or female. A female end may have an interior surface defining a receiving chamber. An interior circumferential groove is formed in the interior surface in which a band is seated. A plurality of rigid fingers is extends from the band into the receiving chamber. The receiving chamber receives a male end of an adjacent pipe, the male end having an exterior surface. An exterior circumferential groove is defined on the exterior surface to receive the plurality of rigid fingers. A variety of connection types and combinations are disclosed. The female end may define a sight window to permit viewing of the position of a male end of an adjacent pipe. The receiving chamber may have a reduced diameter proximate to the middle of the coupling to improve sealing.

Inventors:
HENNEMANN THOMAS L (US)
BERGER THOMAS JAMES (US)
Application Number:
PCT/US2014/028259
Publication Date:
June 11, 2015
Filing Date:
March 14, 2014
Export Citation:
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Assignee:
BILFINGER WATER TECHNOLOGIES INC (US)
International Classes:
F16L25/00
Foreign References:
US20100194098A12010-08-05
US20100078934A12010-04-01
US6499771B12002-12-31
US20080303274A12008-12-11
US4962579A1990-10-16
US5716081A1998-02-10
US20100295299A12010-11-25
Attorney, Agent or Firm:
WITSIL, Matthew W. (PLLCP.O. Box 1370, Research Triangle Park North Carolina, US)
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