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. 09, 2021
Filed:
Aug. 10, 2020
Noritz Corporation, Hyogo, JP;
Midori Nishikawa, Hyogo, JP;
Masaki Kondo, Hyogo, JP;
NORITZ CORPORATION, Hyogo, JP;
Abstract
Provided is a miniaturized water heater having a plate type heat exchanger. The water heater includes a combustion device generating combustion gas by burning fuel; a heat exchange device heating hot water by heat exchange with the combustion gas; and an exhaust part exhausting the combustion gas after heat exchange. The heat exchange device includes a plate laminate in which vertically standing plates are laminated with gaps, and the hot water is heated by alternately flowing the combustion gas and the hot water through the gaps of the plate laminate. The combustion gas flowing in a vertical direction from the combustion device is introduced vertically or substantially vertically into an introduction part provided on a combustion device side of the plate laminate, and a flow direction of the combustion gas in the plate laminate is reversed to discharge the combustion gas to the exhaust part.