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:
Feb. 13, 2024
Filed:
Jan. 21, 2022
Applicant:
Oil Lift Technology Inc., Calgary, CA;
Inventor:
Ross Willard Senger, Airdrie, CA;
Assignee:
Oil Lift Technology Inc., Calgary, CA;
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/10 (2006.01); E21B 33/06 (2006.01); E21B 33/08 (2006.01); E21B 33/03 (2006.01); E21B 43/12 (2006.01);
U.S. Cl.
CPC ...
E21B 33/085 (2013.01); E21B 19/10 (2013.01); E21B 33/03 (2013.01); E21B 33/062 (2013.01); E21B 43/126 (2013.01);
Abstract
A rod lock out clamp includes a housing having a central bore for receiving a rod in spaced relation therethrough and clamp members in the housing for grippingly and frictionally engaging the rod in the bore. At least one of the clamp members has an inner end and a recess in the inner end, the recess having a profile with an arcuate portion having a radius of curvature that reduces from a maximum radius to a minimum radius. Manipulating means are coupled to the housing and the clamp members for moving the clamp members between a rod gripping position and a retracted position.