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:
Mar. 07, 2017

Filed:

Dec. 18, 2013
Applicant:

Sumitomo Precision Products Co., Ltd., Amagasaki-shi, Hyogo, JP;

Inventors:

Eiji Togo, Hyogo, JP;

Takashi Eta, Hyogo, JP;

Yasuhiro Fujita, Hyogo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D 7/10 (2006.01); F28F 9/02 (2006.01); B23K 31/02 (2006.01); B23K 33/00 (2006.01); F28D 9/00 (2006.01);
U.S. Cl.
CPC ...
F28F 9/0243 (2013.01); B23K 31/02 (2013.01); B23K 31/027 (2013.01); B23K 33/004 (2013.01); F28F 9/02 (2013.01); B23K 2201/14 (2013.01); F28D 9/0062 (2013.01); F28F 2275/06 (2013.01);
Abstract

This heat exchanger includes a core and a header tank. The entire peripheral edge of an opening of the header tank welded to the core has a bevel inclined from the internal surface of the header tank toward the external surface thereof at a predetermined bevel angle. At least a portion of the peripheral edge of the opening of the header tank has a second inclined portion inclined from the external surface of the header tank toward the internal surface thereof at an angle larger than the predetermined bevel angle.


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