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. 29, 1994
Filed:
Oct. 01, 1992
Applicant:
Inventors:
Robert A Merkin, Nacogdoches County, TX (US);
Thomas R Smith, Nacogdoches County, TX (US);
John G Cechin, Nacogdoches County, TX (US);
Assignee:
J.M. Clipper Corp., Denver, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277124 ; 2771 / ; 277205 ;
Abstract
A sealing ring for a seal assembly used in oil field equipment including an elastomeric body and a reinforced face. The reinforced face is of molded polytetrafluoroethylene and is integral with the elastomeric body to provide improved pressure capability for the seal without the need for backup rings. The elastomeric body is formed to have a waisted cross section with a narrower portion in the middle and a wider portion at each end. The wider ends provide multiple sealing surfaces and allow fewer rings to be used.