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. 05, 2019
Filed:
Jan. 22, 2016
Weatherford Technology Holdings, Llc, Houston, TX (US);
Clark E. Robison, Tomball, TX (US);
Benson Thomas, Pearland, TX (US);
Michael Gilbert Chavira, Humble, TX (US);
Luis Alberto Garcia, Humble, TX (US);
Jeffrey Wing Lun Seto, Stafford, TX (US);
Michael Charles Ramsey, Round Rock, TX (US);
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Abstract
A reciprocating rod pumping unit includes a tower; a counterweight assembly movable along the tower; and a drum connected to an upper end of the tower and rotatable relative thereto. The unit also includes a belt having a first end connected to the counterweight assembly, extending over the drum, and having a second end connectable to a rod string. The unit further includes a prime mover for reciprocating the counterweight assembly along the tower; a sensor for detecting a condition of the pumping unit; a brake system for halting movement of the counterweight assembly; and a controller in communication with the at least one of the sensors and operable to activate the brake system in response to detection of the faulty condition of the pumping unit.