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:
Jan. 10, 1995
Filed:
May. 02, 1990
Applicant:
Inventors:
Yuzo Hitachi, Shizuoka, JP;
Haruo Serizawa, Shizuoka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
422180 ; 422177 ; 422179 ; 55498 ; 55499 ;
Abstract
An exhaust gas cleaning device is constructed of a metal casing and a honeycomb core body fixedly inserted in the metal casing. The honeycomb core body have been formed by superposing a planar band made of a metal sheet and a corrugated band made from another metal sheet one over the other in a contiguous relation, defines a number of network-patterned axial gas flow passages, and is adapted to carry an exhaust gas cleaning catalyst thereon. The metal casing defines a cavity compartment isolated from an exterior. Preferably, at least one rib or partition wall is arranged in the cavity compartment of the metal casing.