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:
Oct. 09, 2001
Filed:
Mar. 03, 1999
Samuel Guzowski, San Jose, CR;
Bradford G. Corbett, Jr., Fort Worth, TX (US);
S&B Technical Products, Fort Worth, TX (US);
Abstract
A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket includes a ring shaped body which, when viewed in cross-section includes a leading nose region and a radially inwardly slanting primary sealing surface which forms a lip seal for engaging a mating spigot end during insertion, the primary sealing surface being joined to a secondary sealing surface by an intermediate circumferential groove region, the secondary sealing surface comprising a planar circumferential region which terminates in an inside corner of the gasket, the inside corner being connected to an outermost wall region of the gasket by an exterior gasket surface, the outermost wall region of the gasket being connected to the nose region of the gasket by vertical step which joins a uniformly sloping external gasket surface.