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AssigneesWilliam A. Stoll, William J. Moosbrugger
InventorsMark F. Amsdill, James M. Allmendinger, Harry Lender
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The invention comprises an improvement to a freezing plate type continuous ice making machine. Such machines continuously form chunks of hard ice without alternating freezing and harvesting cycles. The improvement comprises apparatus to control the temperature of the inlet water supplied to the freezing plate. The control is accomplished by a thermal, electrical and mechanical feedback loop that automatically increases the water inlet temperature as a result of excessive ice buildup on the freezing plate. In theory the control operates as a negative feedback loop actuated by excessive ice buildup on the freezing plate. As a result the inlet water temperature is prevented from falling below the proper temperature for continuous smooth operation of the ice making machine. The apparatus of the loop comprises the mechanical and electrical drive mechanism for the ice cutter or scraper and an inlet water heat exchanger in thermal communication with the electric drive motor for the ice cutter.
In an ice making machine comprising means for continuously cooling water to form ice crystals, means for supplying makeup water to the continuous cooling means, means for removing the ice crystals from the water and continuous cooling means, said removal means including electro-mechanical drive means to energize the ice crystal removal means,
An inlet supply water temperature electro-mechanical feedback control for an ice making machine, the feedback control comprising in combination a mechanical ice crystal scraper in the machine, a mechanical drive means to actuate the ice crystal scraper, an electric drive motor energizing the mechanical drive means and ice crystal scraper, and, a heat exchanger in thermal communication with the electric drive motor and in fluid communication with the inlet supply water to the ice making machine, the heat exchanger comprising a tubular coil wrapped about the electric drive motor and the inlet water supply passing through the tubular coil,
An inlet supply temperature feedback control for an ice making machine, the feedback control comprising in combination an electric drive motor mechanically connected to ice crystal gathering means such that the motor operating temperature is a function of the force required to gather the ice crystals and heat transfer means in thermal communication with the electric motor and in field communication with the inlet water supply to the ice making machine, said heat transfer means comprising a tubular coil wrapped about the electric motor.
Dependencies are inferred from the claim text.