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:
Nov. 03, 2009
Filed:
Feb. 07, 2007
Nikolaus Moser, Ditzingen, DE;
Andreas Beck, Ludwigsburg, DE;
Josef Rohrmeier, Laberweinting, DE;
Matthaeus Huber, Resibach, DE;
Markus Kolczyk, Mundelsheim, DE;
Michael Durst, Frankenhardt, DE;
Yves Klett, Dauchingen, DE;
Klaus Drechsler, Feldkirchen, DE;
Rainer Kehrle, Stuttgart, DE;
Nikolaus Moser, Ditzingen, DE;
Andreas Beck, Ludwigsburg, DE;
Josef Rohrmeier, Laberweinting, DE;
Matthaeus Huber, Resibach, DE;
Markus Kolczyk, Mundelsheim, DE;
Michael Durst, Frankenhardt, DE;
Yves Klett, Dauchingen, DE;
Klaus Drechsler, Feldkirchen, DE;
Rainer Kehrle, Stuttgart, DE;
Mann & Hummel GmbH, Ludwigsburg, DE;
Universitaet Stuttgart Institut fuer Flugzeugbau, Stuttgart, DE;
Abstract
A filter element () with a tubular folded bag () of folded filter material, which has a plurality of fold blades () adjacent each other in the longitudinal direction () of the folded bag () a closure cover () is attached at at least one axial end () of the folded bag (). In order to provide a filter element which can be bent to any desired curved form while maintaining a high degree of filtration performance, and can be produced in a cost effective manner, the fold blades () of a folded bag () are provided with a combination of diagonal folds extending at an angle relative to each other such that the fold blades () in the longitudinal direction () of the folded bag extend back and forth and thereby form a three-dimensional crown structure (). At least the outer margin of the closure cover () has a form corresponding to the crown structure () of the fold blades ().