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:
Jan. 13, 1998
Filed:
Apr. 12, 1996
Applicant:
Inventors:
Hans Erdmannsdoerfer, Dobel, DE;
Bruno Sommer, Ludwigsburg, DE;
Assignee:
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210489 ; 21049701 ;
Abstract
A filter element having a first tube 2 and a second tube 3, the outer circumferential surface of the first tube 2 being surrounded by a nonwoven layer 4, and the second tube 3 surrounding the first tube 2. On the outer periphery of the second tube 3 there is a yarn and/or paper winding 5, and a shrink tube 6 presses the yarn and/or paper winding 5 against the second tube.