Electric resistance heating devices – Heating devices – Tank or container type liquid heater
Reexamination Certificate
2007-11-20
2010-10-26
Campbell, Thor S (Department: 3742)
Electric resistance heating devices
Heating devices
Tank or container type liquid heater
C392S463000, C219S494000
Reexamination Certificate
active
07822325
ABSTRACT:
A water heater including a vessel, a heating fixture (e.g., an electric-resistance heating element, a gas burner) having a rated maximum heating output, and a controller. The controller includes an interface and a temperature sensor. The controller can control the heating output of the heating element based on a sensed temperature of the temperature sensors. The heating output is a defined maximum heating output for the heating fixture. Also disclosed are methods of defining the capabilities of a water hater heater and methods of operating a water heater.
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Baxter Jeffrey Ray
Murphy Mark Allan
A. O. Smith Corporation
Campbell Thor S
Michael & Best & Friedrich LLP
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