Apparatus for thawing frozen food in a refrigeration appliance
US4296299A · kind A · utility
33Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1979 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Dec 31, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/62
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Food thawing apparatus is disclosed specifically adapted for use in a refrigeration appliance. An enclosure having good thermal communication with surrounding environment is provided with a pair of planar electrodes defining a food thawing zone. One of the electrodes is movable to allow insertion of a frozen food load. A high frequency, relatively low wattage power supply provides uniform energy distribution throughout the food load for gentle heating (thawing). Frequencies of 27.12 MHz or 43 MHz are suggested along with a power level of 100 watts or below, preferably 35-80 watts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.