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:
Sep. 29, 2020
Filed:
Nov. 21, 2017
Applicant:
Carl Freudenberg KG, Weinheim, DE;
Inventors:
Assignee:
CARL FREUDENBERG KG, Weinheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); B01D 46/52 (2006.01); B01D 39/14 (2006.01); B60H 3/06 (2006.01); B01D 46/10 (2006.01);
U.S. Cl.
CPC ...
B01D 46/521 (2013.01); B01D 39/14 (2013.01); B01D 46/0002 (2013.01); B01D 46/0005 (2013.01); B01D 46/0036 (2013.01); B01D 46/10 (2013.01); B60H 3/06 (2013.01); B01D 2239/0407 (2013.01); B01D 2239/065 (2013.01); B01D 2275/10 (2013.01); B01D 2279/40 (2013.01);
Abstract
In an embodiment, the present invention provides a filter element including: a bellows in the shape of a zig-zag having pleat walls and a pleat ridge, edges of the pleat walls and the pleat ridge being provided with edge elements; and a frame element being assigned to at least one end pleat of the bellows. The frame element surrounds the end pleat so as to form a positive fit on both sides, the frame element being fixed to the edge elements.