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:
Nov. 22, 2022
Filed:
Dec. 17, 2018
Applicant:
T.rad Co., Ltd., Tokyo, JP;
Inventor:
Yoichi Nakamura, Tokyo, JP;
Assignee:
T.RAD CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D 9/00 (2006.01); F28F 3/08 (2006.01); F28F 9/02 (2006.01); F28D 7/16 (2006.01);
U.S. Cl.
CPC ...
F28D 9/0093 (2013.01); F28D 7/1684 (2013.01); F28F 3/086 (2013.01); F28F 9/0221 (2013.01);
Abstract
In a header plateless type heat exchanger, to suppress temperature rise at an apical portion of a tube into which exhaust gas at high temperatures or the like flows, to thereby improve durability. A recessed groove portionrecessed inward with narrow width is formed on outer face side of each of a pair of plates, in parallel to a swelling portionand in the approximately same length.