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. 27, 2011
Filed:
Feb. 24, 2009
Applicant:
Hideo Okamoto, Nagoya, JP;
Inventor:
Hideo Okamoto, Nagoya, JP;
Assignee:
Rinnai Corporation, Nagoya-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 25/00 (2006.01); G01N 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An imperfect combustion detecting device includes a destructive current supplying means which supplies, under a condition that it is determined by a useful life determining means that a deterioration status corresponding value matches a use limit value, destructive current to a sensor in order to melt down a part of a circuit that configures the sensor. When it is determined that the sensor is no longer capable of performing a normal CO level detecting function, the sensor is destroyed to the extent rendering the CO level detecting function of the sensor lost to an unrecoverable level.