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:
May. 29, 2012
Filed:
Feb. 16, 2006
Applicant:
Albrecht Heinrichs, Erkelenz, DE;
Inventor:
Albrecht Heinrichs, Erkelenz, DE;
Assignee:
Aker Wirth GmbH, Erkelenz, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 11/00 (2006.01); F04B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pumping system for pumping drilling fluid during the driving or sinking of bore holes includes a pump unit, a rotary drive unit configured to drive the pump unit, a gearbox that includes a driving gear and a driven gear, and a pump shaft drive. The rotary drive unit is operatively connected with the pump unit via the gearbox, and the driven gear of the gearbox is nonrotatably connected with the pump shaft drive.