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:
Feb. 11, 2003
Filed:
Nov. 29, 2000
Karl-Thomas Rhody, Boostedt, DE;
Helmut Franke, Harsewinkel, DE;
CLAAS Industrietechnik GmbH, Paderborn, DE;
Abstract
A harvesting machine with a front-mounted harvesting attachment that is pivotable about a shaft running transversely to the direction of travel comprising and capable of lifting when an obstacle is detected that includes a sensing device with at least one double-acting hydraulic piston and cylinder unit, having a first cylinder chamber and a second cylinder chamber, arranged on the harvesting attachment, a control valve associated with the sensing device in such a way that when the sensing device is not operated, the first cylinder chamber is in fluid communication with the second cylinder chamber by a control valve and when the sensing device is operated, fluid communication between the first cylinder chamber and the second cylinder chamber is interrupted by the control valve.