Electric resistance heating devices – Heating devices – Tank or container type liquid heater
Reexamination Certificate
2006-05-11
2009-08-11
Campbell, Thor S (Department: 3742)
Electric resistance heating devices
Heating devices
Tank or container type liquid heater
C392S447000
Reexamination Certificate
active
07574120
ABSTRACT:
Embodiments of the present disclosure generally pertain to systems and methods for estimating and indicating temperature characteristics of temperature controlled liquids. A system in accordance with one exemplary embodiment of the present disclosure has a tank filled at least partially with a liquid, such as water, and the system has a plurality of temperature sensors mounted on the tank. During operation, a controller compares temperatures sensed by these temperature sensors to a predefined temperature profile for the liquid within the tank in order to estimate the likely temperature characteristics of such liquid. The controller then reports these estimated temperature characteristics via a user interface. As an example, the controller may estimate and report the amount of liquid above a threshold temperature that can be drawn from the tank. Based on the reported temperature characteristics, a user may make decisions about whether or how to use liquid drawn from the tank.
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Patterson Wade C.
Phillips Terry G.
A. O. Smith Corporation
Campbell Thor S
Michael & Best & Friedrich LLP
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