Variable rate and clarity ice making apparatus

Details Variable rate and clarity ice making apparatus Variable rate and clarity ice making apparatus

2005-10-04

2005-10-04

Tapolcai, William E. (Department: 3744)

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

C062S066000, C062S233000, C062S353000

Reexamination Certificate

active

06951113

ABSTRACT:
The icemaker presented here may use a microcontroller, and solid state refrigeration and heat transfer elements to create ice cube qualities ranging from “clear ice” to “fast ice” in a smooth, user selectable continuum. In one embodiment, this may be accomplished by fitting a standard, high production volume icemaker mold with (1) thermoelectric coolers operated in a controlled fashion to heat or cool the mold, (2) a mold temperature sensor (such as a thermistor), and (3) a microcontroller to monitor the process and to adjust the growth rate of ice forming in the mold by adjusting heat transfer rates to optimize particular cooling phases.

REFERENCES:
patent: 4487024 (1984-12-01), Fletcher et al.
patent: 5157929 (1992-10-01), Hotaling

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