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:
Jan. 29, 2013
Filed:
Mar. 08, 2010
Michael Micke, Stuttgart, DE;
Guenter Jokschas, Murrhardt, DE;
Martin Weindorf, Kornwestheim, DE;
Dieter Schreckenberger, Marbach, DE;
Elke Duerr, Asperg, DE;
Michael Micke, Stuttgart, DE;
Guenter Jokschas, Murrhardt, DE;
Martin Weindorf, Kornwestheim, DE;
Dieter Schreckenberger, Marbach, DE;
Elke Duerr, Asperg, DE;
Mann + Hummel GmbH, Ludwigsburg, DE;
Abstract
A filter device for a motor vehicle has a filter element with a porous ceramic support body provided with one or more passages for receiving a liquid to be filtered and filter membranes formed on inner walls of the passages. The liquid to be filtered passes through the filter membranes into the support body and exits from the support body through a circumferential surface of the support body. At least one compensation element is arranged at an end face of the support body. The compensation element is elastically deformable for providing an additional liquid volume that is generated when the liquid expands due to freezing.