Heat exchange – Structural installation – Heating and cooling
Patent
1988-03-17
1989-11-21
Ford, John
Heat exchange
Structural installation
Heating and cooling
165 61, 165 64, 165918, 219 10491, 219 1067, 219 1077, 126390, F25B 2900
Patent
active
048815900
ABSTRACT:
The apparatus consists of a refrigerator (10) into which it is possible to insert trays (27, 28, 29) on which various tableware containing different foods and/or drinks are placed. The refrigerator contains, in addition to the cooling unit (13), a high-frequency generator (17) which interacts with induction coils which are arranged in the trays, making it possible to heat suitable tableware inductively. Furthermore, a temperature monitoring means (19) is provided which switches the high-frequency generator off or on during a settable heating time and on reaching a predetermined temperature. A preferred embodiment of the temperature monitoring means contains an induction coil (41), which corresponds to the coils in the trays, and a metal element (42), the heat capacity of which approximately corresponds to that of a piece of tableware. The metal element is connected to the refrigerator housing by a heat-conducting connection (43, 44, 46). The heat conduction corresponds approximately to the heat absorption of the food in the tableware. A temperature sensor (47) which switches the high-frequency generator off or on at the settable temperature is arranged on the metal element. The apparatus makes it possible for several portions of food to be prepared, stored under cool conditions and heated uniformly to a predetermined temperature at a predetermined time.
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Berndorf Luzern AG
Fidelman Morris
Ford John
Wolffe Franklin D.
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