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. 03, 2012
Filed:
Aug. 14, 2008
Larry D. Best, Springtown, TX (US);
Larry D. Best, Springtown, TX (US);
Global Oilfield Services LLC, Houston, TX (US);
Abstract
A hybrid hydraulic-electric pumping unit () with downstroke energy recovery is disclosed which is operated in a conventional flow mode to supply hydraulic fluid to a hydraulic ram (), and then is operated in a reverse flow mode to receive the hydraulic fluid from the hydraulic ram () and turn an electric motor () to generate electric power. A single hydraulic hose () connects the pump () to the hydraulic ram (), and is used for both passing the hydraulic fluid from the pump () to the hydraulic ram () and from the ram () to the pump (). The potential energy of the weight of sucker rods () lifted in operating the pumping unit () is recovered by operating the pump () and motor () with return of the hydraulic fluid from the hydraulic ram () through the pump (), which turns the motor () to generate electric power.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile