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. 01, 2019
Filed:
Dec. 10, 2015
Weatherford Technology Holdings, Llc, Houston, TX (US);
James S. Trapani, Houston, TX (US);
Clark E. Robison, Tomball, TX (US);
Jeffrey J. Lembcke, Cypress, TX (US);
Benson Thomas, Pearland, TX (US);
Kyle C. Brosch, Richmond, TX (US);
Weatherford Technology Holdings, LLC, Houston, TX (US);
Abstract
A well pumping system can include an actuator that reciprocates a rod string, and a rod rotator including at least one helical profile and at least one engagement device. The rod string may rotate in response to longitudinal displacement of the rod string while the engagement device is engaged with the helical profile. A method of rotating a rod string in a well can include rotating a rod in a rotary direction, in response to displacement of the rod in a longitudinal direction, and preventing rotation of the rod in an opposite rotary direction, in response to displacement of the rod in an opposite longitudinal direction.