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:
Feb. 27, 2018
Filed:
Dec. 19, 2014
Applicant:
T.rad Co., Ltd., Shibuya-ku, Tokyo, JP;
Inventor:
Yoichi Nakamura, Tokyo, JP;
Assignee:
T.RAD Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D 7/10 (2006.01); F28D 9/00 (2006.01); F28F 9/02 (2006.01); F28D 7/16 (2006.01); F28F 3/08 (2006.01); F28F 1/02 (2006.01); F28D 21/00 (2006.01); F28F 9/18 (2006.01);
U.S. Cl.
CPC ...
F28D 9/0037 (2013.01); F28D 7/1684 (2013.01); F28D 21/0003 (2013.01); F28F 1/025 (2013.01); F28F 3/086 (2013.01); F28F 9/0221 (2013.01); F28F 9/182 (2013.01); F28F 2009/029 (2013.01); F28F 2265/16 (2013.01); F28F 2275/04 (2013.01); F28F 2275/12 (2013.01);
Abstract
With respect to a header plateless heat exchanger having as a component a flat tube formed by joining a pair of grooved plates together, air-tightness and liquid-tightness are improved between the portion of the flat tube where the plates are joined together and a header tank. A flat tube is formed by folding tab parts extending from side walls of a first plate back outwards to lie over the outer surfaces of those side walls of the first plate, and placing seating portions of side walls of a second plate on the upper end surfaces of the tab parts, after which a header tank is fitted on each longitudinal end of the flat tube.