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. 16, 2004
Filed:
Oct. 31, 2001
Lionel J. Milberger, Houston, TX (US);
Larry E. Reimert, Houston, TX (US);
Dril-Quip, Inc., Houston, TX (US);
Abstract
A sealing system for sealing with a generally cylindrical surface of a tubular or another tool includes an annular packer element a wedge ring having a substantially conical outer surface configured to radially expand the packer element, and a positioner for moving one of the packer element and wedge ring relative to the other packer element and wedge ring. The packer element includes an first elastomeric seal body axially supported on a first metal rib extending radially from a metal base and a second seal body axially supported on a second metal rib The second seal body has an elasticity lower than that of the first seal body. According to the method of the invention, the positioner is moved to cause the first seal body to sealingly engage the cylindrical surface, and hydraulic forces due to that sealing engagement then move the packer element to the expanded diameter sealing position, in which the second seal body seals against the cylindrical surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile