Anti-oxidation food preparation device

• US 8,076,620 B2
• Filed: 11/07/2008
• Issued: 12/13/2011
• Est. Priority Date: 11/07/2008
• Status: Active Grant

• Current Assignee: Lance P. Johnson
• Original Assignee: Lance P. Johnson
• Inventors: Maupin, Steven L., Johnson, Lance P.
• Primary Examiner(s): Yuen, Henry
• Assistant Examiner(s): Nguyen, Hung D
• Application Number:
  US12/266,581
• Publication Number:
  US 20100119668A1
• Time in Patent Office: 1,131 Days
• Field of Search: 219/395, 219/385, 219/620, 219/621, 219/628, 219/432, 219/545, 219/386, 219/433, 219/429, 219/435, 219/438, 219/441, 426/237, 426/241, 426/244, 426/523, 994/51, 439/18
• US Class Current: 219/621
• CPC Class Codes: A23B 4/015 Preserving by irradiation or electric treatment without heating effect
• CPC Class Codes: A23L 3/005 by heating using irradiation or electric treatment drying or kilning A23L3/40
• CPC Class Codes: A23L 3/32 by treatment with electric currents without heating effect
• CPC Class Codes: A23L 5/15 using wave energy, irradiation, electrical means or magnetic fields, e.g. oven cooking or roasting using radiant dry heat
• CPC Class Codes: A47J 27/004 with integral electrical heating means drinking cups with integral heating means A47J36/2466
• CPC Class Codes: H05B 6/1236 adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way

Abstract

An anti-oxidation food preparation device includes a food preparation vessel having an electrically conductive body and a separate power supplying base. The base generates high frequency AC power that is transferred by a primary coil to as secondary coil maintained by the vessel. A rectification circuit converts the high frequency AC power into a rippled, rectified AC current that is supplied to the electrically conductive body of the vessel so as to create a reducing environment of available electrons for absorption by the food as it is prepared.

Claims

1. A food preparation device for comprising:

a base maintaining a power source configured to generate a first power signal;

an electrically conductive food preparation vessel to prepare food; and

a rectification circuit maintained by said vessel and electrically coupled to said vessel, said rectification circuit comprising;

a coil configured to receive a second power signal induced by said first power signal;

a schottky diode arranged in series with one end said coil;

a capacitor arranged in parallel with said coil and said diode, such that the cathode of said diode is coupled to one end of said capacitor, and said coil is coupled to another end of said capacitor to form a first connection point that is electrically coupled to said vessel; and

a current regulator coupled to said capacitor, said current regulator having an output that forms a second connection point that is electrically coupled to said vessel and spaced apart from said first connection point, said current regulator configured to control the magnitude of said current delivered to said vessel;

wherein when said rectification circuit receives said second power signal, said rectification circuit generates a rippled, rectified AC current signal from said second power signal, and supplies it to said vessel at said second connection point, so as to create a reducing environment of available electrons for absorption by the food carried by the vessel.

2. The food preparation device of claim 1, wherein said first power signal comprises a square wave.

3. A food preparation device for use with an inductive heating appliance comprising:

a vessel for preparing food, said vessel having a conductive body having a receiving surface, wherein said receiving surface maintains a non-conductive coating disposed thereupon;

a rectification circuit comprising;

a bridge rectifier;

a voltage regulator coupled to the output of said bridge rectifier; and

a current regulator coupled to the output of said voltage regulator, said current regulator coupled to said conductive body;

a first wire section embedded within said coating, said first wire section having each end coupled to said bridge rectifier; and

a second wire section embedded within said coating, said second wire section coupled at one end to said first wire section and at the other end to said rectification circuit;

wherein said rectification circuit converts the electrical current induced at said first wire section by the inductive heating appliance into a rippled, rectified AC current that is supplied to said conductive body by said current regulator, so as to create a reducing environment of available electrons for absorption by the food carried by said vessel.

4. The food preparation system of claim 3, wherein said rectification circuit is integral with said body.

5. The food preparation system of claim 3, wherein said first wire section substantially forms a loop.

6. The food preparation system of claim 3, further comprising:

a capacitor coupled to said voltage regulator to store energy when said vessel does not receive power from the inductive heating appliance.