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:
Sep. 13, 2022
Filed:
Aug. 22, 2019
Applicant:
Noritz Corporation, Hyogo, JP;
Inventors:
Naoya Shiotsu, Akashi, JP;
Masaki Kondo, Kobe, JP;
Assignee:
NORITZ CORPORATION, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24H 8/00 (2022.01); F24H 1/14 (2022.01); F24H 9/00 (2022.01); F24H 9/14 (2006.01);
U.S. Cl.
CPC ...
F24H 1/145 (2013.01); F24H 9/0026 (2013.01); F24H 9/146 (2013.01);
Abstract
A water heating device includes: a heat exchanger having a case to which heating air is supplied, and heat transfer pipes accommodated inside the case; and a straightening vane arranged on the downstream side in a heating air flow direction of the heat transfer pipes, and having a plurality of vent holes. The heat transfer pipe includes a plurality of pipe body portions that extend along a direction intersecting the heating air flow direction and approach the straightening vane. The plurality of vent holes are arranged so as to overlap the plurality of pipe body portions in the heating air flow direction.