Patents by Inventor Steven Thomas Ottaway

Steven Thomas Ottaway has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Oven for heating a product with RF energy
    Patent number: 6914226
    Abstract: RF energy provided by electrodes positioned between a product is used to heat a product that exhibits a variable impedance during the heating process. As the product's impedance changes during the heating process, RF heating system impedance can be maintained constant by adjusting the distance between the electrodes, adjusting the impedance of a variable impedance device connected between the RF power source and an electrode, or a combination of electrode distance adjustment and impedance adjustment of the variable impedance device. The system is particularly applicable to the heating or pasteurization of bulk food products with multiple heating zones.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: July 5, 2005
    Assignee: Comdel, Inc.
    Inventor: Steven Thomas Ottaway
  • Rf energy conveyor oven
    Publication number: 20040016744
    Abstract: RF energy provided by electrodes positioned between a product is used to heat a product that exhibits a variable impedance during the heating process. As the product's impedance changes during the heating process, RF heating system impedance can be maintained constant by adjusting the distance between the electrodes, adjusting the impedance of a variable impedance device connected between the RF power source and an electrode, or a combination of electrode distance adjustment and impedance adjustment of the variable impedance device. The system is particularly applicable to the heating or pasteurization of bulk food products with multiple heating zones.
    Type: Application
    Filed: June 3, 2003
    Publication date: January 29, 2004
    Inventor: Steven Thomas Ottaway