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, 2018
Filed:
Jan. 16, 2014
Applicant:
Hydac Filtertechnik Gmbh, Sulzbach/Saar, DE;
Inventor:
Werner Wilkendorf, Ottweiler, DE;
Assignee:
HYDAC FILTERTECHNIK GMBH, Sulzbach/Saar, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 21/04 (2006.01); B01D 35/157 (2006.01); B01D 29/54 (2006.01); B01D 35/147 (2006.01); B01D 35/153 (2006.01); B01D 29/58 (2006.01);
U.S. Cl.
CPC ...
F15B 21/041 (2013.01); B01D 29/54 (2013.01); B01D 29/58 (2013.01); B01D 35/147 (2013.01); B01D 35/153 (2013.01); B01D 2201/295 (2013.01); B01D 2201/342 (2013.01); B01D 2201/4084 (2013.01); F15B 2211/611 (2013.01); F15B 2211/615 (2013.01);
Abstract
A filter device has a first connection (A) to a hydraulic working circuit, an associated filter element (F) and an additional connection (A) by which leakage oil amounts of hydraulic components can be fed. A control apparatus (V) can feed the leakage oil amounts from the additional connection (A) to the filter element (F) when a specified working pressure of the working circuit is not reached at the first connection (A).