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. 28, 1999
Filed:
Oct. 22, 1997
Michael C Shrader, Lynchburg, VA (US);
Michael Frazier, Forest, VA (US);
Other;
Abstract
A process and an adjustable circuit using a joystick activated controller constructed in accordance with the principles of the present invention to provide balanced forward and reverse directional regulation of bidirectional motors oppositely deployed to cooperation in the propulsion of an item of equipment. The joystick responds to the hand of a human operator to regulate the operation of a pair of motors driving opposite sides of an item of equipment along a path of travel. By operating the joystick, the operator can adjust the speed and the forward and reverse directions while trimming the motors or actuators to allow the piece of construction equipment to travel a straight path, or alternatively, to enable the operator to toggle the joystick to guide the equipment during its operational performance, along a path of varied direction.