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:
Mar. 30, 2004
Filed:
Feb. 27, 2002
Applicant:
Inventors:
C. Raymond Cheng, Madison, WI (US);
Z. Gerald Liu, Madison, IN (US);
Randolph G. Zoran, McFarland, WI (US);
Assignee:
Fleetguard, Inc., Nashville, TN (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 5/392 ; F01N 3/28 ;
U.S. Cl.
CPC ...
B01D 5/392 ; F01N 3/28 ;
Abstract
An exhaust aftertreatment device has a diffuser upstream of an aftertreatment element such as a catalyst element or a filter element such as a diesel particulate filter. The diffuser de-focuses centralized velocity force flow against the aftertreatment element from the inlet in a space efficient and flow efficient construction.