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.

Date of Patent:
Jul. 15, 2003

Filed:

Jun. 10, 2002
Applicant:
Inventors:

Soichi Kato, Saitama, JP;

Shoji Akiyama, Saitama, JP;

Kazuo Ochiai, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F 1/00 ;
U.S. Cl.
CPC ...
F28F 1/00 ;
Abstract

A heat exchanger ( ) is formed by stacking tubes ( ) formed by rolling a flat tube material ( ) with a fin ( ) interposed between the adjacent tubes, joining tanks ( ), ( ) and the tubes, ( ) to appropriately communicate the tubes ( ) and the tanks ( ), ( ), wherein the tube ( ) is provided with a partition ( ) for dividing a passage ( ) of the tube ( ) into passages ( ),( ) and the partition ( ) has an extra section for absorbing a deformation produced when a partition part ( ) and the tube are formed.


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