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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.:

US 9879919 B1

PDFFull Text
Date of Patent:
Jan. 30, 2018

Filed:

Jun. 03, 2015

Heat exchanger and method of manufacturing same

Applicant:

Yutaka Giken Co., Ltd., Hamamatsu-shi, Shizuoka, JP;

Inventors:

Toru Hisanaga, Hamamatsu, JP;

Hiroshi Nagura, Hamamatsu, JP;

Koji Takeda, Hamamatsu, JP;

Kozue Suzuki, Hamamatsu, JP;

Assignee:

YUTAKA GIKEN CO., LTD., , JP;

Attorneys:

Klintworth & Rozenblat IP LLP

Bruce L. Adams, Esq.

Primary Examiner:

Justin Jonaitis

Int. Cl.
CPC ...
F28F 9/02 (2006.01); F28D 7/16 (2006.01); B23K 26/262 (2014.01); F28D 21/00 (2006.01); B23P 15/26 (2006.01); B23K 101/14 (2006.01);
U.S. Cl.
CPC ...
F28D 7/1684 (2013.01); B23K 26/262 (2015.10); F28D 21/0003 (2013.01); B23K 2201/14 (2013.01); B23P 15/26 (2013.01); F28F 2275/06 (2013.01); Y10T 29/49352 (2015.01);
Abstract

A heat exchanger includes a pair of end plates closing opposite ends of a cylindrical core case, and a plurality of heat exchange tubes each supported at opposite end portions by the end plates. The end plates have support holes, and opposite ends of the tubes are inserted into corresponding support holes in the end plates. Each of the tubes is formed by bending a plate material so that opposite side edge portions of the bent plate material are superimposed on each other, one of the superimposed side edge portions, located inward of the other of the superimposed side edge portions, forming an inner plate portion, the other of the superimposed side edge portions forming an outer plate portion, and then welding a weld bead through the thickness of one of the inner and outer plate portions to fuse to the other plate portion.

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Hisanaga, Toru. (2018). Heat exchanger and method of manufacturing same (U.S. Patent No. 9879919). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9879919

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