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:
Aug. 07, 2007
Filed:
Feb. 04, 2005
Andrew J Happel, Fort Wayne, IN (US);
Andrew J Happel, Fort Wayne, IN (US);
Press-Seal Gasket Corporation, Fort Wayne, IN (US);
Abstract
A gasket for pipe-to-pipe connections, which is closely received within a rectangular-shaped annular groove in the bell end of a pipe, and provides a compressive, fluid-tight seal with the spigot end of another pipe. The gasket includes a two-part body having a substantially rectangular profile in section, including a relatively rigid component joined to a relatively resilient component. The resilient component includes a radially inwardly projecting sealing lobe for providing a compressive seal with the spigot end of a pipe, and a reinforcement portion of the rigid component is disposed between the sealing lobe and the pipe bell end to provide a radially non-compressible reaction surface against which the sealing lobe is compressed. The rigid component also includes a tapered leading edge portion for aligning and centering the spigot end of a pipe upon insertion within the gasket, and the leading edge portion is reinforced by a plurality of circumferentially spaced ribs.