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:
May. 21, 2013
Filed:
Oct. 26, 2007
Applicant:
Winfried Rüb, Waldshut-Tiengen, DE;
Inventor:
Winfried Rüb, Waldshut-Tiengen, DE;
Assignee:
Hydac Filtertechnik GmbH, Sulzbach/Saar, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A controlling device for hydraulic consumers () has one controlling valve () for controlling a supply pipeline (T) for the hydraulic consumer () and a tank return pipeline (T). Because the control valve () is connected to an additional supply pipeline (T) and constructed as a priority valve, the supply pipeline (T) receives priority preference of a fluid supply system over the priority of the tank return pipeline (T). A sensor circuit is realized which checks whether, in accordance with the load situation at the hydraulic consumer (), there is any need at all for a supply flow.