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:
Mar. 31, 2015
Filed:
Oct. 05, 2010
Carl R. Douglass, Iii, Willmar, MN (US);
Carl R. Douglass, III, Willmar, MN (US);
Prinsco, Inc., Willmar, MN (US);
Abstract
A heat-fusible gasket for affecting a flexible seal between two adjoining components of a coupling, such as the spigot end of a section of plastic pipe and a bell coupler to be fitted thereover. The gasket has an inner core which is constructed of an elastomeric material, and outer opposing sealing surfaces that are formed at least in part of a heat-fusible material that is compatible with the heat-fusible components with which the gasket is intended to engage. The gasket is co-extruded in continuous lengths with electrically conductive heat resistance wires embedded in the outer compatibly heat-fusible layers. For annular gaskets, the co-extruded lengths of gasket material may be cut and spliced into any desired diameter gasket. Upon connection to a power source, the gasket seal is perfected through electrofusion along the opposing sealing surfaces of the gasket, thereby providing enhanced sealing capability.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile