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:
Jun. 21, 2011
Filed:
May. 15, 2009
Andrew Kutac, Hallettsville, TX (US);
Andrew Kutac, Hallettsville, TX (US);
Tam International, Inc., Houston, TX (US);
Abstract
A swellable downhole packer () is provided for positioning downhole in a well to seal with the interior surface of a borehole or the interior surface of a downhole tubular. The packer includes a swellable elastomeric sleeve-shaped body () positioned over a mandrel () for swelling, and a rigid end ring (). An elastomeric anti-extrusion member () is spaced axially between the sleeve-shaped body and the rigid end ring, and has a radial thickness adjacent the end ring greater than the radial thickness adjacent the sleeve-shaped body. A swellable elastomeric member () is spaced radially between the exterior surface of the mandrel and the elastomeric anti-extrusion member.