F - Mech Eng,Light,Heat,Weapons – 24 – C
Patent
F - Mech Eng,Light,Heat,Weapons
24
C
F24C 7/02 (2006.01) H05B 6/80 (2006.01)
Patent
CA 2119239
A hybrid oven (10) for cooking by both hot air impingement and microwave cooking includes a housing (14) defining a cooking chamber (16) adapted to receive a food product (12) for cooking, a hot air plenum (18) configured and dimensioned to hold a large volume of air relative to the cooking chamber (16), and a conduit (24) for selectively providing gaseous communica- tion therebetween. Associated with the plenum ace a thermal reservoir (26) of high specific heat and high heat capacity relative to the air disposed in the plenum (18) and an actuatable heater (28) for maintaining the thermal reservoir (26) at a high temperature. Controls (250) are provided for actuating the heater (28) to preheat the thermal reservoir (26) and the ambient air in the plenum (18) prior to actuation of the blower (40), for actuating the magnetron (100}, and for actuating the blower (40) at a predetermined time relative to actuation of the magnetron (100), whereby actuation of the blower (40} causes the impingement of preheated air from the plenum (18) through the conduit (24) and onto the product (12) in the cooking chamber (16).
Mckee Philip R.
Winkelmann Earl R.
Osler Hoskin & Harcourt Llp
Turbochef Inc.
Turbochef Technologies Inc.
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