Apparatus for heating prepackaged foods utilizing high frequency

Details Apparatus for heating prepackaged foods utilizing high frequency Apparatus for heating prepackaged foods utilizing high frequency

1997-06-17

2000-02-08

Leung, Philip H.

Electric heating

Capacitive dielectric heating

Specific heating application

219775, 219777, 219780, 426241, 99358, 99451, 422 23, H05B 654, H05B 660

Patent

active

06023055&

ABSTRACT:
A heating apparatus for heating a prepackaged food, is provided with a heater which heats a prepackaged food, an enclosure which defines an airtight chamber operable to accommodate the prepackaged food, and a pressure controller which controls the inside pressure of the airtight chamber. The heater includes a pair of electrodes which are arranged face to face, and an electric power source which supplies a high frequency electric power. The inside pressure of the airtight chamber is controlled in response to an expansion of the prepackaged food being heated to prevent the packaging container from breaking out.

REFERENCES:
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patent: 3494724 (1970-02-01), Gray
patent: 3889009 (1975-06-01), Lipoma
patent: 3961569 (1976-06-01), Kenyon et al.
patent: 4303820 (1981-12-01), Stottmann et al.
patent: 4812609 (1989-03-01), Butot
patent: 4974503 (1990-12-01), Koch
patent: 5069920 (1991-12-01), Hildebrand
patent: 5334402 (1994-08-01), Ovadia

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