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. 06, 1999
Filed:
Feb. 28, 1997
Abstract
An industrial truck has a height-adjustable standing and/or sitting arrangement for an operator and steering hydraulics. The standing and/or sitting arrangement is connected with a hydraulic positioning cylinder, which is connected to the steering hydraulics for the height adjustment of the standing and/or sitting arrangement. The positioning cylinder is connected in parallel with a steering motor and can be acted upon from both sides by the steering hydraulics. An electromagnetically actuatable valve, which can be controlled by a control unit, is disposed in a hydraulic line leading to a positioning space of the positioning cylinder associated with the upward movement of the height adjustment. The control unit prevents height adjustment if another work function is being executed by the industrial truck.