Patent · US Expired

Ice cream machine using semiconductor refrigerator

US6298668A · kind A · utility

21Cited by
4References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 18, 2000
Grant dateOct 9, 2001
Priority date
Expiry dateJul 18, 2020

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA23G9/22
  • WIPO fieldFood chemistry
  • WIPO sectorChemistry

Abstract

An ice cream machine for household use employs semiconductor refrigeration to produce an efficient, compact and non-polluting appliance. The ice cream machine includes a refrigeration plate, a heat radiator, a cold container, a motor and a stirring shaft. The refrigeration plate includes a plurality of P-N junction semiconductor refrigerators. The ice cream maker includes a power supply to provide 12VDC power to the semiconductor refrigerators. A thermal guiding device conducts heat from the cold container to the refrigeration plate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.