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:
Sep. 23, 2003
Filed:
Dec. 14, 2000
Applicant:
Inventors:
Trent Michael Victor Kaiser, Edmonton, Alberta, CA;
Maurice William Slack, Edmonton, Alberta, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 1/702 ;
U.S. Cl.
CPC ...
E21B 1/702 ;
Abstract
A plurality of steel rings are crimped or shrink fitted onto a joint of steel well casing to produce the casing anchor. The rings and joint are sufficiently interlocked so that, when the anchor is cemented in a well, the joint can transfer axial load from the casing string to the cement through the rings to provide resistance to axial displacement of the anchor relative to the surrounding earth material.