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:
Jul. 25, 2006
Filed:
Feb. 09, 2004
John G. Berger, Landisville, PA (US);
Jeremy Daniel Peters, New Holland, PA (US);
James T. Clevenger, Jr., Lancaster, PA (US);
Philip J. Ehrhart, Narvon, PA (US);
Richard P Strosser, Akron, PA (US);
Christopher A. Foster, Winchester, NZ;
John G. Berger, Landisville, PA (US);
Jeremy Daniel Peters, New Holland, PA (US);
James T. Clevenger, Jr., Lancaster, PA (US);
Philip J. Ehrhart, Narvon, PA (US);
Richard P Strosser, Akron, PA (US);
Christopher A. Foster, Winchester, NZ;
CNH America LLC, New Holland, PA (US);
Abstract
The apparatus is an electronic speed control for farm machines. A microprocessor is fed data on the tractor engine speed, the tractor ground speed, and the manual speed lever setting, and electronically matches the desired ground speed to the engine speed to prevent stalling the engine. Ground speed is controlled by using the microprocessor to electrically vary a control valve that replaces the usual mechanical linkage between the speed control lever and the hydraulic pumps driving the hydraulic wheel motors.