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. 12, 2020
Filed:
Jun. 10, 2009
Applicant:
Michael Dedering, Morsbach-Lichtenberg, DE;
Inventor:
Michael Dedering, Morsbach-Lichtenberg, DE;
Assignee:
IBS FILTRAN KUNSTSTOFF-/METALLERZEUGNISSE GMBH, Morsbach, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 11/03 (2006.01); B01D 29/01 (2006.01); B01D 29/56 (2006.01);
U.S. Cl.
CPC ...
B01D 29/01 (2013.01); B01D 29/56 (2013.01); B01D 2201/04 (2013.01);
Abstract
A filter medium for the filtration of oil, in particular in the oil circuit of gear mechanisms and internal combustion engines, comprises a first and a second filtration layer, the first filtration layer comprising an open filtration medium and being arranged on the second filtration layer comprising a tight filtration medium, an intermediate chamber being arranged between the first and the second filtration layer, so that the first and the second filtration layer are set apart from each other in the region of the intermediate chamber in the direction of filtration.