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:
Mar. 20, 2018
Filed:
Sep. 08, 2015
Claas Industrietechnik Gmbh, Paderborn, DE;
Helmut Claas, Harsewinkel, DE;
Heinrich Dueckinghaus, Bielefeld, DE;
Robert Obermeier-Hartmann, Bueren, DE;
Hendrik Schulze Zumkley, Rietberg, DE;
CLAAS Industrietechnik GmbH, Paderborn, DE;
Abstract
A steerable crawler track for an agricultural utility vehicle such as a tractor or a self-propelled harvesting machine has a left-side track roller unit, a right-side track roller unit, a differential having a transmission input driven by an engine, a first transmission output for driving the left track roller unit, and a second transmission output for driving the right track roller unit and a hydraulic transmission having a variable transmission ratio (i). The transmission outputs of the differential are coupled to one another via the hydraulic transmission such that the ratio of the rotational speeds (n, n) of the transmission outputs are influenced by changing the transmission ratio (i) of the hydraulic transmission.