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:
Apr. 10, 2001
Filed:
Mar. 29, 1996
Applicant:
Inventor:
Davor Jack Raos, Vista, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 1/704 ;
U.S. Cl.
CPC ...
F04B 1/704 ;
Abstract
The present invention provides a device for actuating a sucker rod pump assembly, the device comprising an electric linear motor positioned about the axis of operation of the sucker rod pump and a counterbalance positioned such that it counterbalances the weight of the sucker rod assembly and the liquid being pumped. The present invention also provides a method for pumping a fluid utilizing a sucker rod assembly, an electric linear motor and a counterbalance.