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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 11285522 B1

PDFFull Text
Date of Patent:
Mar. 29, 2022

Filed:

Nov. 30, 2017

Heat transfer tube, heat exchanger, and method for manufacturing heat transfer tube

Applicant:

Mitsubishi Aluminum Co., Ltd., Minato-ku, JP;

Inventors:

Yusuke Nakaura, Susono, JP;

Yuki Hateruma, Susono, JP;

Hideo Kume, Susono, JP;

Takuya Okawa, Susono, JP;

Assignee:

Mitsubishi Aluminum Co., Ltd., Minato-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Joel M Attey

Int. Cl.
CPC ...
B21C 1/22 (2006.01); C23C 10/28 (2006.01); C23C 4/08 (2016.01); C23C 4/18 (2006.01); F28F 1/12 (2006.01); F28F 1/40 (2006.01); F28F 21/08 (2006.01); B21C 37/20 (2006.01);
U.S. Cl.
CPC ...
B21C 1/22 (2013.01); C23C 4/08 (2013.01); C23C 4/18 (2013.01); C23C 10/28 (2013.01); F28F 1/12 (2013.01); F28F 1/40 (2013.01); F28F 21/08 (2013.01); B21C 37/20 (2013.01);
Abstract

A heat transfer tube is made of aluminum and includes a streak-shaped Zn diffusion layer () which is spirally formed on a circular outer peripheral surface in a length direction. According to this heat transfer tube, even in a case where rainwater or dew concentration water is intensively accumulated in a portion of the outer peripheral surface in a circumferential direction, it is possible to obtain a sufficient corrosion resistance.

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Nakaura, Yusuke. (2022). Heat transfer tube, heat exchanger, and method for manufacturing heat transfer tube (U.S. Patent No. 11285522). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11285522

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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