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:
Oct. 19, 2004
Filed:
Apr. 24, 2003
Applicant:
Inventors:
Siegfried Zenker, Kirchseeon, DE;
Thorkild Christensen, Sonderborg, DK;
Assignee:
Sauer-Danfoss ApS, , DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 1/304 ;
U.S. Cl.
CPC ...
F15B 1/304 ;
Abstract
A hydraulic valve system ( ) has a supply connection arrangement, having a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement, having two working connections (A, B), which can be connected with a hydraulic motor ( ), and a directional valve ( ) between the supply connection arrangement (P, T) and the working connection arrangement (A, B), which is connected with the working connection arrangement (A, B) via working lines ( ), in which are arranged check valves ( ), which can be opened by means of pressure.