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:
Nov. 23, 2004
Filed:
Jan. 09, 2003
Fumihiko Kato, Tokyo, JP;
Calsonic Kansei Corporation, Tokyo, JP;
Abstract
A wide sheet formed of a metal foil is wound a plurality of times around outer peripheral surfaces of four honeycomb matrices arranged in series to form an intermediate tube. As a result, a subassembly is formed. A brazing filler material is wound around an outer peripheral surface of the subassembly at an end portion thereof. The subassembly is inserted into an outer tube. The outer tube is caulked to reduce an outer diameter thereof. Then, heat processing is performed in vacuum to diffusion bond a corrugated sheet and a flat sheet, which form the honeycomb matrices, and the wide sheet of the intermediate tube to each other. The intermediate tube and the outer tube are brazed to each other. Thus, a metal substrate for carrying a catalyst is achieved.