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:
Sep. 07, 2010
Filed:
Dec. 01, 2006
William A. Nagle, Laureldale, PA (US);
Michael V. Porter, Easton, PA (US);
Scott D. Madara, Nazareth, PA (US);
Douglas R. Dole, Whitehouse Station, NJ (US);
William A. Nagle, Laureldale, PA (US);
Michael V. Porter, Easton, PA (US);
Scott D. Madara, Nazareth, PA (US);
Douglas R. Dole, Whitehouse Station, NJ (US);
Victaulic Company, Easton, PA (US);
Abstract
A concave bearing surface for use with lugs of pipe coupling segments and a method of joining pipe ends. The concave bearing surface is positioned on the lug and surrounds an aperture which receives a fastener attaching the coupling segments together end to end surrounding pipe ends to be joined. Either the nut or the head of the fastener that engages the concave surface may be rotated to tighten the fastener. Engagement between the concave surface and the rotating member reduces the torque required to tighten the fastener and effect a stiff, fluid tight joint.