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:
Oct. 18, 2011
Filed:
Jan. 22, 2007
Applicants:
Haruhiko Watanabe, Yokkaichi, JP;
Yuuji Sako, Hazu-gun, JP;
Kyoujirou Nakata, Kariya, JP;
Inventors:
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F 9/02 (2006.01); F28F 1/14 (2006.01); F28F 1/36 (2006.01); F28F 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tube is composed of a first plate and a second plate which are opposed and engaged with each other. In a first region on both end sides of the tube, the first plate is formed into a shape in which an edge portion of the first plate is laid along a bent portion of the second plate so that an outer wall face of the tube forms a continuous face. In a second region of the tube, the first plate is formed into a shape in which the edge portion of the first plate is laid between the edge portion of the second plate and the bent portion of the second plate.