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:
Oct. 15, 1985
Filed:
Mar. 05, 1982
Theodor Abels, Aschaffenburg-Nilkheim, DE;
Linde Aktiengesellschaft, Hollriegelskreuth, DE;
Abstract
A hydrostatic-transmission control system for fork-lift trucks and like industrial vehicles has at least one of variable-displacement hydrostatic motor driving wheels on opposite sides of the vehicle and supplied by a pump having a control element for varying its displacement under the control of an operator. The prime mover, e.g. a gasoline engine or electric motor, drives the pump. The control system comprises means whereby, for low and average output speeds of the transmission consisting of a combination of the pump and motors, the control of the transmission ratio is a function only of the operator-set position of the aforementioned element whereas, for the highest output speeds, the ratio is controlled by both the position of this element and by a further parameter, usually the output speed of the prime mover.