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.:
Date of Patent:
Apr. 16, 2019
Filed:
Jul. 24, 2015
Applicant:
T.rad Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
T.RAD Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F 3/08 (2006.01); B21D 53/04 (2006.01); F28F 3/10 (2006.01); F28F 1/02 (2006.01); F28F 1/04 (2006.01); F28D 9/00 (2006.01); F28F 1/00 (2006.01); F28F 3/12 (2006.01); F28D 1/03 (2006.01); F28D 7/16 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
F28F 3/08 (2013.01); B21D 53/04 (2013.01); F28F 1/025 (2013.01); F28F 1/04 (2013.01); F28F 3/10 (2013.01); F28D 1/0308 (2013.01); F28D 7/1684 (2013.01); F28D 9/00 (2013.01); F28D 9/0031 (2013.01); F28D 21/0003 (2013.01); F28F 1/00 (2013.01); F28F 1/006 (2013.01); F28F 1/02 (2013.01); F28F 3/12 (2013.01); F28F 2001/027 (2013.01);
Abstract
A flat tube for a header-plateless heat exchanger has an inner plate and an outer plate that are each press-molded from a metal plate and are curved/folded into a groove shape comprising a groove bottom section and two side wall sections. Both plates are such that the outer plate is fitted to the outside of the inner plate in a manner such that the groove bottom sections oppose each other, and an expanded opening in the thickness direction is formed at both ends of the plates.