Combination refrigerator oven

• US 4,884,626 A
• Filed: 08/25/1987
• Issued: 12/05/1989
• Est. Priority Date: 04/01/1986
• Status: Expired due to Term

• Current Assignee: TMIO LLC
• Original Assignee: Merle M. Filipowski
• Inventors: Filipowski, Merle M.
• Primary Examiner(s): Ford, John
• Application Number:
  US07/089,265
• Time in Patent Office: 833 Days
• Field of Search: 165/12, 165/918, 165/919, 165/58, 165/48.1, 165/61, 165/63, 165/64, 219/10.55 R, 219/10.55 B, 374/158, 99/357, 99/419, 99/484, 312/236
• US Class Current: 165/231
• CPC Class Codes: F24C 7/087 of electric circuits regulating heat
• CPC Class Codes: F25D 23/12 Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
• CPC Class Codes: F25D 2400/16 Convertible refrigerators
• CPC Class Codes: F25D 2700/12 Sensors measuring the inside temperature
• CPC Class Codes: F25D 2700/16 Sensors measuring the temperature of products
• CPC Class Codes: H05B 6/6435 Aspects relating to the user interface of the microwave heating apparatus
• CPC Class Codes: H05B 6/6452 the sensors being in contact with the heated product
• CPC Class Codes: H05B 6/6482 combined with radiant heating, e.g. infrared heating
• CPC Class Codes: Y10S 165/918 Heated and cooled food cabinets and/or trays

Abstract

A self-contained refrigerator-oven for refrigerating and cooking food in the same enclosed chamber, has both heating elements and cooling elements located in the same appliance. The heating elements may be conventional heating elements and/or a convection unit and a microwave unit. Additonally, the apparatus has cooling controls, heating controls, and temperature controls which are activated by a microprocessor, programmable for up to two weeks in advance, so that the cooling elements and the heating elements are subsequently activated to treat the food at particular temperatures for particular specific periods of time. The sequence of heating and cooling may be performed in any desired order. The apparatus includes a battery backup to maintain the time, microprocessor and logic circuits during a power outage and utilizes a frozen food, probe-receiving sheath to facilitate cooking from a frozen state. The apparatus also may have a module containing burners or griddles mounted onto it so that the apparatus can function as a self-contained kitchen unit.

Claims

1. A self-contained, combination refrigerator-cooking oven for selectively cooling and cooking food in the same enclosed chamber, comprising:

a rigid cabinet of essentially rectangular shape and including top, bottom and vertical side walls, with an open front for the placing of food in the enclosed chamber;

a door mounted on the open front of the cabinet and movable between open and closed positions;

thermal insulating means mounted on inner wall surfaces of the cabinet;

a plurality of cooling coils mounted adjacent the thermal insulating means and at least one of the cabinet walls;

a heat-resistant liner having an open front and mounted inside the insulating means to define, with said door, when said door is in its closed position, the enclosed chamber in which the food is placed;

heating means located adjacent a portion of the heat-resistant liner and at least one of the cabinet wall for heating the enclosed chamber, said heating means including a microwave heater in heating communication with the interior of said enclosed chamber so as to be capable of cooking the food placed in said chamber;

a refrigerating unit mounted in the cabinet and connected to said cooling coils;

temperature control means for monitoring and controlling the temperature of said enclosed chamber;

timing control means for selectively activating said refrigerating unit and said heating means in a preselected timed sequence and for preselected periods to provide, selectively, cooling and cooking of the food;

cooling control means responsive to said temperature control means for controlling said refrigerating unit when said refrigerating unit is activated;

heating control means responsive to said temperature control means for controlling said heating means when said heating means is activated; and

a control panel module mounted in said cabinet and forming respective parts of said temperature, timing, cooling and heating control means, said control panel module including selector switch means for preselecting the sequence in which said refrigerating unit and said heating means subsequently are to operate, and the time and temperature at which said refrigerating unit and said heating means, respectively, are to operate in each operating cycle thereof, so that said cooling control means and said heating control means control said refrigerating unit and said heating means, respectively, to provide, selectively, freezing, cooling of the food without freezing, defrosting, cooking, recooling and warming of the food in any desired sequence.

2. The self-contained, combination refrigerator-cooking oven as recited in claim 1, wherein the heating means includes an electrical resistance heating element mounted on the interior of said liner in the enclosed chamber.

3. The self-contained, combination refrigerator-cooking oven as recited in claim 1, wherein the heating means includes a gas burner mounted on the interior of said liner in the enclosed chamber.

4. The combination self-contained, combination refrigerator-cooking oven as recited in claim 1, wherein said microwave heater includes a microwave unit mounted in said cabinet between a top of the cabinet and a top of the liner with a microwave source protruding through the top of the liner into the interior of said enclosed chamber, said control panel module also including selector switch means for selecting the power level at which the microwave unit is to operate.

5. The self-contained combination refrigerator-cooking oven as recited in claim 2 wherein the first heating means includes a convection fan unit mounted in the cabinet in conjunction with the electrical resistance heating element.

6. The self-contained, combination refrigerator-cooking oven as recited in claim 1, further comprising a module mounted on the top of the cabinet and including surface burners.

7. The self-contained, combination refrigerator-cooking oven as recited in claim 1, wherein the heating means is comprised of a combination of the following:

an electrical resistance element mounted on the interior of the liner in the enclosed chamber;

said microwave heater being a microwave unit mounted in the cabinet between a top of the cabinet and a top of the liner with a microwave source protruding through the top of the liner into the interior of the enclosed chamber, with the control panel module also including selector switch means for selecting the power level at which the microwave unit is to operate; and

a convection unit mounted in the cabinet.

8. The self-contained, combination refrigerator-cooking oven as recited in claim 1, further comprising:

a microprocessor for controlling said temperature, timing, cooling and heating control means; and

methodology program guide means for assisting a food preparer in writing input for chronological sequence activations for the self-contained, combination refrigerator-cooking oven.

10. The self-contained, combination refrigerator-cooking oven as recited in claim 1, wherein the temperature control means includes a temperature sensing probe to be inserted in food and an air sensor for determining cooking temperature.

11. The self-contained, combination refrigerator-cooking oven as recited in claim 8, further comprising:

a clock timer for controlling said microprocessor; and

a control keypad on said control panel module for setting said clock timer.

12. The self-contained combination refrigerator-cooking oven as recited in claim 1, further comprising:

a "Hold" control keypad on said control panel module for placing the combination refrigerator-cooking oven in a non-energy consuming mode during refrigerating and/or cooking phases.

13. The self-contained, combination refrigerator-cooking oven as recited in claim 1, further comprising:

a timer having a timing capability of up to two weeks, mounted on said control panel module.

14. The self-contained, combination refrigerator-cooking oven as recited in claim 1, wherein said heating means is mounted, at least in part, in said enclosed chamber.

15. The self-contained, combination refrigerator-cooking oven as recited in claim 1, wherein the selector switch means on said control panel module comprises touch control keypads and includes touch control keypads for setting time and temperature which are a series of touch control keypads numbered 0 through 9, respectively.

9. The self-contained, combination refrigerator-cooking oven as recited in claim 9, further comprising a battery pack for providing an uninterruptible parallel power source for the microprocessor.

16. A combination refrigerator-cooking oven for selectively cooling and cooking food in the same enclosed chamber, comprising:

a rigid cabinet of essentially rectangular shape and including top, bottom, and vertical side walls, with an open front for the placing of food in the enclosed chamber;

a door mounted on the open front of the cabinet and movable between open and closed positions;

thermal insulating means mounted on inner wall surfaces of the cabinet;

a plurality of cooling coils mounted adjacent the thermal insulating means and at least one of the cabinet walls;

a heat-resistant liner having an open front and mounted inside the insulating means to define, with said door, when the door is in its closed position, the enclosed chamber in which the food is placed;

heating means located adjacent a portion of the heat-resistance liner and at least one of the cabinet walls for heating the enclosed chamber, said heating means being in heating communication with the interior of said enclosed chamber so as to be capable of cooking the food placed in said enclosed chamber;

a refrigerating unit mounted in the cabinet and connected to said cooling coils;

temperature control means for monitoring and controlling the temperature of said enclosed chamber, said temperature control means including an air temperature sensor for sensing the air temperature within said enclosed chamber, a temperature sensing probe and also including a sheath to be placed in the food prior to initial freezing, for receiving the temperature sensing probe in a close fitting heat-conductive relationship for subsequent cooking of the food;

timing control means for selectively activating said refrigerating unit and said heating means in a preselected timed sequence and for preselected periods to provide, selectively, cooling and cooking of the food;

cooling control means responsive to said temperature control means for controlling said refrigerating unit when said refrigerating unit is activated, to provide cooling of the food; and

heating control means responsive to said temperature control means for controlling said heating means when said heating means is activated, to provide cooking of the food.