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:
Aug. 01, 2006
Filed:
Apr. 18, 2003
Applicants:
Michael T. Sommers, Beggs, OK (US);
Robert L. Brookey, Tulsa, OK (US);
Inventors:
Michael T. Sommers, Beggs, OK (US);
Robert L. Brookey, Tulsa, OK (US);
Assignee:
Team Oil Tools, Tulsa, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 23/01 (2006.01); E21B 19/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order to prevent premature separation of the slip and slip spring and to simplify production of the slip casing, a self-centering spring engageable with a packer tool slip is modified according to the present invention. A groove located at a lower center of the slip below the pocket of the slip cooperates with the spring to retain the spring against the slip and is centered within the pocket without requiring partitions or further welding of lugs to retain the springs.