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:
May. 08, 2001
Filed:
Aug. 21, 1998
Nikolaus Eggert, Hamburg, DE;
Matthias Kube, Herborn-Schönbach, DE;
Ralf Baginski, Neetze, DE;
Nis-Georg Nissen, Henstedt-Ulzburg, DE;
Frank Mänken, Norderstedt, DE;
Jungheinrich Aktiengesellschaft, Hamburg, DE;
Abstract
A follower industrial truck including a drive motor, a handle lever having a first end which is linked to a steering shaft of the industrial truck to pivot about a horizontal axis, a handle lever head which is movably mounted with respect to the handle lever in a pull and push manner, a spring arrangement between the handle lever and the head, which biases the head in opposite directions towards a neutral position produces a path signal (S,), the magnitude of the path signal (S,) being approximately proportional to the extent of the deflection, a first controller which produces a first nomimal value (I,) for the current of the drive motor, and a further controller adapted to receive a comparison current value which is achieved by the comparison of the actual current value (I,) of the drive motor and of the first nomimal value (,) from the first controller in order to produce a setting current value for the drive motor.