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:
Jan. 10, 2023
Filed:
Dec. 23, 2020
Applicant:
Evolution Oil Tools Inc., Calgary, CA;
Inventor:
Emery Stoesser, Calgary, CA;
Assignee:
EVOLUTION OIL TOOLS INC, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/04 (2006.01); F16H 1/16 (2006.01);
U.S. Cl.
CPC ...
E21B 33/0415 (2013.01); F16H 1/16 (2013.01);
Abstract
A tubing rotator and a drive therefor. The tubing rotator includes an input shaft to a tubing rotator gear; an electric motor including an output shaft; and a plurality of worm drives arranged in series and configured to (i) receive input from the electric motor and (ii) output torque to the input shaft of the tubing rotator. The worm drives may be identical speed reducers, such as with an input to output reduction ratio of from 25:1 to 40:1.