Electric resistance heating devices – Heating devices – Immersion heater details
Reexamination Certificate
2007-06-04
2010-12-14
Campbell, Thor S (Department: 3742)
Electric resistance heating devices
Heating devices
Immersion heater details
C392S497000, C392S471000
Reexamination Certificate
active
07853133
ABSTRACT:
A deicing system configured to heat water within a water receptacle includes a main body supporting a temperature sensor, a heating element, and a pump. The main body is positioned proximate a base of the water receptacle. The temperature sensor is configured to detect the temperature of the water. The heating element is configured to heat the water when a temperature of the water approaches a freezing point. The pump is configured to circulate the water within the water receptacle to prevent temperature gradients within the water.
REFERENCES:
patent: 5235161 (1993-08-01), Reusche et al.
patent: 6707988 (2004-03-01), Reusche et al.
patent: 6778763 (2004-08-01), Reusche et al.
Chumbley Philip E.
Reusche Thomas K.
Allied Precision Industries Inc.
Campbell Thor S
McAndrews Held & Malloy Ltd.
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