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:
May. 05, 2009
Filed:
Sep. 13, 2006
Hideki Kitagawa, Nagoya, JP;
Kumiko Yasutani, Nagoya, JP;
Ikuro Adachi, Nagoya, JP;
Rinnai Corporation, Nagoya-shi, JP;
Abstract
A hot water supply system which allows two hot water supply apparatuses to operate cooperatively and which can avoid degrading a hot water supply capability when one of the two hot water supply apparatuses cannot perform as a master or slave. The two hot water supply apparatuses each have a connection communication terminal, a master controller, an external communication terminal, and a slave controller. The hot water supply system includes a communication cable via which the connection communication terminal of one of the two hot water supply apparatuses is connected to the external communication terminal of the other hot water supply apparatus, and a failure reporting device for reporting a failure in the master controller provided in the hot water supply apparatus operating as the master and a failure in the slave controller provided in the hot water supply apparatus operating as the slave.