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. 08, 1983
Filed:
May. 23, 1979
Applicant:
Inventors:
Joseph T Hamrick, Roanoke, VA (US);
Leslie C Rose, Franklin Heights, VA (US);
Assignee:
Well-Pack Systems, Inc., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166369 ; 166106 ; 166387 ;
Abstract
A borehole water pump having an inflatable packer to permit the borehole casing to be used as the water conduit to the surface. The pump may be operated by a line shaft extending from the surface or by a downhole electric or hydraulic motor. In another embodiment the system utilizes a column pipe with outlet apertures formed through the wall thereof above the packer for allowing flow to the surface by way of the column pipe and the annulus between the column pipe and the borehole wall.