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. 08, 1986
Filed:
Apr. 13, 1984
Donald L Schultz, Richland, MI (US);
Clark Equipment Company, Buchanan, MI (US);
Abstract
A lift truck of the order-picker type is provided with an automatic control system for safe-guarding the operation against certain conditions. The electronic control system is responsive to an electrical height signal corresponding to the height of the lift fork to regulate or limit the other operational functions of the truck. The speed control channel compares the speed signal with a speed command signal and produces a speed control signal of limiting value. A travel interrupt channel compares the height signal with the steering angle and interrupts the vehicle travel if the steering angle is excessive. Usually, the high speed lift is cut-off when a predetermined height is reached; the lowering of the upright is disabled at a predetermined lower limit subject to manual override.