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:
Nov. 27, 2012
Filed:
Sep. 23, 2009
Kenichi Aoyagi, Kitakyushu, JP;
Hiroshi Kanemaru, Kitakyushu, JP;
Tsuyoshi Miura, Kitakyushu, JP;
Masayuki Oba, Kitakyushu, JP;
Kenichi Aoyagi, Kitakyushu, JP;
Hiroshi Kanemaru, Kitakyushu, JP;
Tsuyoshi Miura, Kitakyushu, JP;
Masayuki Oba, Kitakyushu, JP;
Toto Ltd., Fukuoka, JP;
Abstract
A water-and-hot-water mixing device includes a mixing valve unit which mixes hot water and water and discharges mixed water therefrom, an operation part which sets a predetermined temperature, a mixed water thermistor which detects a temperature of mixed water, a hot-water thermistor which detects a temperature of hot water supplied to the mixing valve unit, and a controller which performs a feedback control of a discharge water temperature by controlling the mixing valve unit. The controller starts the feedback control when the controller determines that a change amount of the temperature of the hot water per unit time detected by the hot-water thermistor is not more than a fixed value and the temperature of the hot water detected by the hot-water thermistor is not lower than the predetermined temperature.