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:
Jul. 26, 2005
Filed:
May. 02, 2003
Applicant:
David E. Hirth, Pasadena, TX (US);
Inventor:
David E. Hirth, Pasadena, TX (US);
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B033/129 ;
U.S. Cl.
CPC ...
Abstract
A wellbore anchoring device for anchoring a down-hole tool within a string of casing is provided, comprising an expandable cone having at least one annular integral shoulder, defining the large end of at least one conical annular recess on an outer surface of the cone, and at least one resilient slip positioned within the at least one annular recess, wherein axial travel of the at least one slip relative to the cone is actively limited by engagement with at least one integral shoulder on the cone.