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:
Oct. 07, 2014
Filed:
Jul. 26, 2011
Jean Buytaert, Mineral Wells, TX (US);
Ira Eugene Hining, Mineral Wells, TX (US);
Jean Buytaert, Mineral Wells, TX (US);
Ira Eugene Hining, Mineral Wells, TX (US);
Antelope Oil Tool & Mfg. Co., LLC, Mineral Wells, TX (US);
Abstract
A centralizer having a plurality of collapsible bows interconnecting a first collar and a second collar, with the centralizer disposed on a tubular with a stop collar, and an attachable retainer(s) of the centralizer blocking passage of the stop collar therethrough. The bows may have a yield strength of at least about 200,000 psi. Outer surface of the bows may have a coefficient of friction equal or less than about 0.02. Maximum radial thickness of centralizer when the plurality of collapsible bows is fully collapsed may be equal to or less than 3/16″. Centralizer may be rotatable relative to tubular. Centralizer having a split tubular body forming first and second collars connected by collapsible bows and a retainer to retain the split tubular body on the tubular, and the retainer, the first collar and/or the second collar providing a recess therein to receive a stop collar of the tubular.