Electric heating – Heating devices
Reexamination Certificate
2006-01-24
2009-12-29
Hoang, Tu B (Department: 3742)
Electric heating
Heating devices
C062S073000
Reexamination Certificate
active
07638735
ABSTRACT:
Systems and methods for pulse electrothermal and heat-storage ice detachment. A pulse electrothermal ice detachment apparatus includes one or more coolant tubes, and optionally, fins in thermal contact with the coolant tubes. The tubes and/or fins form a resistive heater. One or more switches may apply electrical power to the resistive heater, generating heat to detach ice from the tubes and/or the fins. A freezer unit forms a heat-storage icemaking system having a compressor and a condenser for dissipating waste heat, and coolant that circulates through the compressor, the condenser and a coolant tube. The coolant tube is in thermal contact with an evaporator plate. A tank, after the compressor and before the condenser, transfers heat from the coolant to a heating liquid. The heating liquid periodically flows through a heating tube in thermal contact with the evaporator plate, detaching ice from the evaporator plate.
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Petrenko, Victor F.; “
Hoang Tu B
Lathrop & Gage LLP
Patel Vinod D
The Trustees of Dartmouth College
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