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:
May. 10, 2016
Filed:
Sep. 05, 2013
Applicant:
Mann+hummel Gmbh, Ludwigsburg, DE;
Inventor:
Andreas Franz, Ludwigsburg, DE;
Assignee:
MANN+HUMMEL GMBH, Ludwigsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); C04B 38/00 (2006.01); B01D 46/24 (2006.01); B01D 39/16 (2006.01); B01D 39/18 (2006.01); B01D 39/20 (2006.01); B01D 46/52 (2006.01); F01N 3/022 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
B01D 46/0001 (2013.01); B01D 39/1623 (2013.01); B01D 39/18 (2013.01); B01D 39/2075 (2013.01); B01D 46/2418 (2013.01); B01D 46/527 (2013.01); C04B 38/0083 (2013.01); B01D 46/2429 (2013.01); B01D 2046/2433 (2013.01); B01D 2239/0695 (2013.01); B01D 2275/30 (2013.01); C04B 2111/00793 (2013.01); F01N 3/0222 (2013.01); F01N 2330/60 (2013.01);
Abstract
In a method for manufacturing a ceramic filter element for an exhaust gas filter of internal combustion engines, a combustible non-ceramic filter medium is shaped to a coil and impregnated with a ceramic slurry having a powder size distribution selected such that the ceramic filter element in the finished state has a desired porosity distribution that varies across the coil cross-section of the ceramic filter element.