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:
Aug. 15, 2017
Filed:
Feb. 28, 2013
Steffes Corporation, Dickinson, ND (US);
Austin P. Zeller, Dickinson, ND (US);
Thomas P. Steffes, Dickinson, ND (US);
Steffes Corporation, Dickinson, ND (US);
Abstract
A system includes a cold water supply, a water heater, a mixing valve, and one or more water use fixtures. The water heater includes a tank, a first temperature sensor configured to output a first temperature signal indicative of a water temperature of water in the tank, a heating device, and a water heater controller configured to control the water heater based on the first temperature signal and an operating temperature setting. The mixing valve outputs a mixed water flow, which is a combination of a hot water flow and a cold water flow, to the water use fixtures. A second temperature sensor outputs a second temperature signal indicative of a water flow temperature of the mixed water flow or the hot water flow, and a system controller selectively deactivates the water heater based on the second temperature signal.