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:
Jun. 29, 2010
Filed:
Feb. 15, 2006
Applicants:
Klemens Dworatzek, Edingen, DE;
Ralf Bauder, Ketsch, DE;
Karlheinz Muenkel, Oberderdingen-Flehingen, DE;
Duc Cuong Nguyen, Laatzen, DE;
Inventors:
Klemens Dworatzek, Edingen, DE;
Ralf Bauder, Ketsch, DE;
Karlheinz Muenkel, Oberderdingen-Flehingen, DE;
Duc Cuong Nguyen, Laatzen, DE;
Assignee:
Mann + Hummel GmbH, Ludwigsburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 35/153 (2006.01); B01D 35/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A liquid filter, especially oil filter for an internal combustion engine, having a cup-shaped housing with a liquid inlet and a liquid outlet, a filter element arranged with a seal between the inlet and outlet, and a one-piece barrier membrane arranged in the area of the opening of the cup-shaped housing such that the liquid inlet and/or the liquid outlet can be closed by the barrier membrane.