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. 22, 2005
Filed:
Apr. 27, 2001
Applicant:
Roger Stave, Knarrevik, NO;
Inventor:
Roger Stave, Knarrevik, NO;
Assignee:
ADR Subsea AS, Straume, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B043/00 ;
U.S. Cl.
CPC ...
Abstract
A well pump device, especially for use in connection with the recovery of hydrocarbons, wherein the pump is carried to a predetermined position within a well pipe. The pump is provided with an external seal which is arranged to prevent fluid from flowing from the pressure side of the pump past the pump to the suction side thereof.