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:
Aug. 08, 1978
Filed:
Dec. 17, 1976
Applicant:
Inventor:
Giampaolo Garcea, Milan, IT;
Assignee:
Alfa Romeo S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
422177 ; 60299 ; 60301 ; 60303 ; 55DI / ;
Abstract
A catalytic muffler for internal combustion engines of cylindrical flattened construction having an inner casing containing the catalyst. Annular flow patterns are provided for gas entry and exit wherein the gas pressure and thus velocity remain substantially constant. The specific connections of the circular faces of the inner casing to the annular wall thereof are slip designed with the design of the outer half shells providing the holding force to keep the same in yieldable, contact throughout the various temperature changes undergone.