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:
Dec. 25, 2012
Filed:
May. 20, 2010
Wolfgang Bauer, Weinheim, DE;
Wolfgang Bauer, Weinheim, DE;
Deere & Company, Moline, IL (US);
Abstract
A stop valve is provided for a hydraulic system. The stop valve includes a valve slide that can be moved to a closed position and to an open position. A blocking device for limiting the activation of the valve slide is provided at an intermediate position located between the closed position and the open position, wherein, in this intermediate position, the opening cross section of the stop valve equals only a fraction of the opening cross section present in the open position. The blocking device is constructed such that limiting the activation of the valve slide by the blocking device is realized as a function of a pressure difference value between a pressure in front of and a pressure behind the stop valve, wherein the limiting can be canceled when the value falls below a given pressure difference value. This guarantees a pressure balance controlled according to the flow when the stop valve is opened.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile