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. 09, 2000
Filed:
Sep. 02, 1998
Yasufumi Kurahashi, Otsu, JP;
Minoru Fukumoto, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
An air-conditioner has a hot-water heating system 110. The system includes a switch 140 for setting a temperature in an interior, a sensor 134 for sensing a temperature of water, a first relay 116 for controlling the water temperature, and a second relay 118 for preventing an overheating. A controller 130 is provided which controls the first relay to adjust the water temperature to a certain temperature based on the set temperature and the detected temperature. When the water temperature has increased to a predetermined temperature, the controller controls the second relay to disconnect between a heater 114 and a power source 120.