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:
Oct. 06, 2015
Filed:
Sep. 23, 2011
Xingpeng RU, Nanjing, CN;
Dongwei Zhu, Nanjing, CN;
Xiaorong Shao, Nanjing, CN;
Jian Xu, Nanjing, CN;
Yinan Yang, Nanjing, CN;
Zhi LI, Nanjing, CN;
Xingpeng Ru, Nanjing, CN;
Dongwei Zhu, Nanjing, CN;
Xiaorong Shao, Nanjing, CN;
Jian Xu, Nanjing, CN;
Yinan Yang, Nanjing, CN;
Zhi Li, Nanjing, CN;
A. O. SMITH CORPORATION, Milwaukee, WI (US);
Abstract
A water heating system and method of operating the same. The system includes a first water heater having a first heating source of a first type. The system further includes a second water heater having a second heating source of a second type. A valve having a first interface that is connected to the cold water source, a second interface that is connected to a first cold water inlet of the first water heater, a third interface that is connected to a second hot water outlet of the second water heater, and a fourth interface connected to the hot water outlet of the first water heater. A motor positions the changeover valve to one of at least three positions. A control circuit includes a temperature sensor near the first hot water outlet of the first water heater, and a controller coupled to the first temperature sensor and the motor.