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:
Jul. 02, 2013
Filed:
Oct. 12, 2009
Applicant:
Satoshi Kaneiwa, Nagoya, JP;
Inventor:
Satoshi Kaneiwa, Nagoya, JP;
Assignee:
Rinnai Corporation, Nagoya-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24D 19/00 (2006.01); F24D 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The room heater has, in an outer case, both a first air flow passage that leads to a vent holethrough a section in which the main heat exchangeris arranged and a second air flow passage that does not pass through the section in which the main heat exchangeris arranged but leads to the vent holethrough a section in which a supplementary heat exchangeris arranged provided. At least one of the first damperwhich can freely block the first air flow passage and the second damperwhich can freely block the second air flow passage is provided, and the first air flow passage or the second air flow passage is blocked in a weak combustion period.