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. 11, 2010
Filed:
Jun. 04, 2007
Applicant:
Daniel J. Krieger, Bismarck, ND (US);
Inventor:
Daniel J. Krieger, Bismarck, ND (US);
Assignee:
Clark Equipment Company, West Fargo, ND (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 11/02 (2006.01); B62D 3/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydraulic system includes first and second pumps, first and second motors, and three valves for selectively creating combined and basic hydraulic flow. The arrangement of valves permits combined flow to be provided to both motors in series to cause high speed operation of the motors, and permits combined flow to be provided to one motor and basic flow to the other motor. When applied to a vehicle, the arrangement provides a steerable high speed series arrangement of the vehicle's drive motors.