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:
Apr. 17, 2018
Filed:
Jan. 17, 2014
Filter material for a fluid and drainage layer for such a filter material including a filter element
Applicant:
Hydac Filtertechnik Gmbh, Sulzbach/Saar, DE;
Inventor:
Matthias Schwender, Kirkel, DE;
Assignee:
HYDAC FILTERTECHNIK GMBH, Sulzbach/Saar, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/16 (2006.01); B01D 39/08 (2006.01);
U.S. Cl.
CPC ...
B01D 39/083 (2013.01); B01D 39/086 (2013.01); B01D 39/16 (2013.01); B01D 39/1623 (2013.01);
Abstract
A filter material for a fluid, particularly a hydraulic fluid, has a multi-layer filter medium () through which a fluid can flow and having a filter layer () and a drainage layer () forming a three-dimensional structure designed to enlarge the flow channels formed for the fluid to flow through. The drainage layer cooperates with an adjacent drainage layer and/or has individual line elements () that form a mesh or grid structure. Those line elements are arc-shaped or curved at least to some extent.