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:
Apr. 01, 2003
Filed:
Aug. 23, 2001
Applicant:
Inventors:
Mark C. Allie, Stoughton, WI (US);
Barry M. Verdegan, Stoughton, WI (US);
Murray R. Schukar, Fitchburg, WI (US);
William C. Haberkamp, Cookeville, TN (US);
C. Raymond Cheng, Madison, WI (US);
Matthew P. Henrichsen, Columbus, IN (US);
Assignee:
Fleetguard, Inc., Nashville, TN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 4/600 ; B01D 2/962 ;
U.S. Cl.
CPC ...
B01D 4/600 ; B01D 2/962 ;
Abstract
An exhaust aftertreatment filter is provided with localized and efficient heating for regeneration. Electrical and/or thermal conductors are wound with filter media sheets into a filter roll and/or conductors are provided at axial ends of the filter roll and/or microwave radiation is used for localized hot zone heating. Regeneration is provided at lateral slices of the filter roll lying in a plane extending transversely and radially relative to the filter roll axis.