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:
Mar. 20, 2007
Filed:
Jan. 20, 2004
Applicant:
Dieter Amesoeder, Tamm, DE;
Inventor:
Dieter Amesoeder, Tamm, DE;
Assignee:
Mann & Hummel GmbH, Ludwigsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 27/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter insert () having an annular filter element () which is connected in a fluid-tight manner to a cover () on one axial end face () and to a base () on an opposite axial end face (). The filter element () has a central channel () in which a central tube () is situated. The central tube () extends between the cover () and the base () and communicates with a central opening () in the cover (). To ensure high stability of the filter () with a low manufacturing complexity, the central tube () is designed to have a variable length in the direction of its longitudinal central axis ().