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:
Nov. 02, 1993
Filed:
Apr. 05, 1991
Applicant:
Inventors:
Richard L Bloom, Woodville, WI (US);
William T Fay, St. Paul, MN (US);
Joel H Sabean, Eagan, MN (US);
Mark P Smith, Lino Lakes, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
422174 ; 422180 ; 422181 ; 422171 ; 60299 ; 60311 ; 55484 ; 55520 ; 55527 ;
Abstract
An electrically regenerable diesel particulate trap or filter comprising an electrically resistive expanded metal sheet or sleeve which when energized heats the filter element to a temperature sufficient to allow the trapped soot particulates to burn.