The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 1987
Filed:
Apr. 02, 1985
Thomas R Cassel, Birmingham, MI (US);
Scott T Cassel, Birmingham, MI (US);
BKS Company, Birmingham, MI (US);
Abstract
A pipe coupling for improved pull-apart strength of pipe lap joints is disclosed. A clamping band is applied to the outside pipe around the overlap region of the pipes. An attachment is applied around the inside pipe and the two bands are connected together by a linkage extending alongside the pipes. Preferably, a sealing structure is provided on the outer pipe in the overlap region such that sealing engagement between the outside and inside pipes is obtained when the clamping band is tightened. When the pipes are subjected to pull-apart forces, the linkage resists slippage or pull-apart motion. If there is slippage, more will occur on the side opposite the linkage and an oblique relationship of the pipes results. This produces a binding action between the pipes with increased frictional resistance to the pull-apart forces.