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:
Dec. 26, 2006

Filed:

Jan. 20, 2005
Applicants:

Kazuhiro Shibagaki, Kariya, JP;

Akihiro Maeda, Kariya, JP;

Inventors:

Kazuhiro Shibagaki, Kariya, JP;

Akihiro Maeda, Kariya, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F 1/04 (2006.01); B23P 15/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A tubeis constituted by a pair of plateswhich are fitted with each other in such a manner as to put an inner finbetween the plateand the plateDifferences in levelare formed on the second platewhich fits inside, which differences in level each protrude inwardly by a distance equal to the thickness of the first platewhereby the outer wall surface of the tubeis made substantially level thereover. A gap which is formed between the outer wall surface of the tubeand a core plate, when the tube is passed through the core plate, can be as small as possible whereby the brazing properties can be improved.


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