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:
Aug. 02, 1988
Filed:
Oct. 10, 1986
Applicant:
Inventors:
August Muhlratzer, Krailling, DE;
Siegfried Lassmann, Grobenzell, DE;
Roland Bertinger, Munich, DE;
Herbert Gutwein, Pasenbach, DE;
Renate Sanden, Hebertshausen, DE;
Assignee:
Man Technologie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428198 ; 156 622 ; 427249 ; 427255 ; 427344 ; 4274342 ; 4274432 ; 428280 ; 428281 ; 428360 ; 428368 ; 428224 ; 428408 ; 55512 ;
Abstract
A method for the production of soot filters using felt-like or other bats as filter elements, which are made up of loose refractory fibers. In order to bond the fibers together and to anchor then in place, the filter element made up of the fibers is coated by CVD or precipitation from a solution to give an amorphous coating. The coating is also refractory. It bonds the fibers together at their crossovers.