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:
Nov. 24, 1992
Filed:
Feb. 06, 1992
Gary R Schaeper, Houston, TX (US);
Marshall N Montgomery, Katy, TX (US);
Cooper Industries, Inc., Houston, TX (US);
Abstract
A sealing structure for sealing between substantially aligned cylindrical surfaces including a seal carrier having a tubular body with external sealing ring grooves spaced apart so that sealing rings positioned in said grooves engage the cylindrical surface in sealing relationship and a relief groove in the central exterior of the seal carrier body to provide increased flexibility of the seal carrier body so that it can accommodate misalignment of the cylindrical surfaces and can respond to pressure differentials between the interior and exterior of the seal carrier body to reduce the extrusion gap between the seal carrier body and the cylindrical surfaces. The improved sealing structure of the present invention has a particular application for sealing between the bonnet and the body of a blowout preventer.