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:
Sep. 02, 2003
Filed:
Oct. 30, 2000
Curtis Lester, Lubbock, TX (US);
Goulds Pumps, Incorporated, Seneca Falls, NY (US);
Abstract
An apparatus for cleaning a well casing and a method for its use. The apparatus includes: a coupling having first and second ends, the first end constructed and arranged for connection to a drill stem of a drilling rig having vertical and rotational motion and means for pumping liquid therethrough to the coupling, the coupling having a central passageway therethrough connected to the means for pumping liquid; a drill collar tube having first and second ends, the first end of the drill collar tube connected to the second end of the coupling, the drill collar tube having a central passageway therethrough connected to the central passageway of the coupling, an outer surface, a plurality of nozzles disposed between the central passageway and the outer surface, and closure means for closing the second end of the drill collar tube; and a plurality of brushes disposed generally perpendicularly to the outer surface of the drill collar tube.