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:
May. 19, 1998
Filed:
Aug. 09, 1996
Applicant:
Inventor:
Slater William Hawes, Fenton, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B01J / ;
U.S. Cl.
CPC ...
428116 ; 428118 ; 428131 ; 422171 ; 422180 ; 422222 ; 422169 ; 422168 ;
Abstract
A catalytic converter substrate comprising: a plurality of cell groups, each cell group comprising a plurality of air-flow cells extending axially through the substrate, each cell group comprising a first set of walls defining a radially outer periphery thereof and a second set of walls suspended by the first set of walls partitioning the individual air-flow cells from each other, wherein the first set of walls has a first effective thermal mass and the second set of walls has a second effective thermal mass, wherein the first effective thermal mass is greater than the second effective thermal mass.