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:
Apr. 30, 1991
Filed:
Apr. 10, 1989
Applicant:
Inventors:
Takashi Michimoto, Hiroshima, JP;
Yukinari Nakamoto, Hiroshima, JP;
Kazuhiko Kuwada, Hiroshima, JP;
Nobuyoshi Ishida, Hiroshima, JP;
Assignee:
Babcock Hitachi Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
502439 ; 502527 ;
Abstract
A plate-shaped catalyst for denitration of exhaust gases has a surface roughened expanded metal base strip that is coated on both surfaces with a catalytic layer. Conical convex and concave portions adjoining one another are pressed into the coated strip, and the surfaces of the coated layer are formed with wave-shapes having a predetermined pitch without substantially deforming the expanded metal strip. The plate-shaped catalysts are stacked on one another to form a catalytic unit using the convex and concave portions as spacers.