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:
Dec. 06, 2005
Filed:
Aug. 13, 2004
Toshihiro Kobayashi, Nagoya, JP;
Tomohiro Ichikawa, Nagoya, JP;
Toshihiro Kobayashi, Nagoya, JP;
Tomohiro Ichikawa, Nagoya, JP;
Paloma Industries, Limited, Nagoya, JP;
Abstract
A water heater is provided in which neutralization process of drain is not required and an excellent heat efficiency is achieved. A route of exhaust gas which is passing through the main heat exchangeris divided into a first exhaust gas chamberhaving a secondary heat exchangerand a second exhaust gas chamberhaving a drain evaporator. Because of this, hot exhaust gas which is passing through only the main heat exchangerflows into both the secondary heat exchangerand the drain evaporator. Therefore, in the secondary heat exchangerexhaust gas heat can be efficiently recovered by utilizing the hot exhaust gas, and in the drain evaporatordrain can be evaporated efficiently by utilizing the hot exhaust gas.