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:
Sep. 04, 2001
Filed:
Oct. 08, 1998
Wolfgang Adamek, Lohmar, DE;
Herbert Coenen, Königswinter, DE;
Jürgen Vollmer, Lohmar, DE;
GKN Walterscheid GmbH, Lohmar, DE;
Abstract
The invention relates to a device for stabilizing the two lower steering arms (,) of a tractor. The lower steering arms (,) can be actuated by a hydraulic power lift (,). Each lower steering arm (,) is associated with a side strut (,) which includes a single-acting hydraulic cylinder (,) to stabilize and secure the lower steering arm (,). A pre-selection valve (,) and a control valve (,) enable the hydraulic cylinders to be connected to the power lift (,) either via a line or loaded separately by a second pressure source (P,). Thus, independently of the actuation of the power lift (,), the two lower steering arms can be centrally centered by the hydraulic cylinders (,).