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:
Nov. 15, 2016
Filed:
Sep. 15, 2011
Applicants:
Shaun Arthur Wold, Cochrane, CA;
Michael John Derkach, Lloydminster, CA;
Inventors:
Shaun Arthur Wold, Cochrane, CA;
Michael John Derkach, Lloydminster, CA;
Assignee:
EVOLUTION OIL TOOLS INC., , CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/10 (2006.01); E21B 43/12 (2006.01);
U.S. Cl.
CPC ...
E21B 43/10 (2013.01); E21B 43/126 (2013.01);
Abstract
Disclosed herein is a tubing string anchor for resisting angular rotation of the tubing string, as when undergoing pumping through the string. The anchor includes a plurality of anchoring members each rotatable about a fulcrum between a locking position and a non-locking position. The anchor housing has a groove formed between adjacent anchoring members through which a string may be run to access below the anchor when the anchor is installed.