Patents by Inventor Ivano Frattini

Ivano Frattini 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).

  • Method and device for determining the weight of foods contained in a microwave oven and for controlling their treatment
    Patent number: 5247146
    Abstract: This invention provides a method and apparatus for determining the weight of foods contained in a microwave oven and for controlling their treatment in accordance with that weight. The apparatus determines the weight by measuring the heating of a body of microwave-sensitive material disposed in the chamber during a stage of operation of the magnetron at a predetermined power for a predetermined time, wherein the heating of the body disposed on a wall of the cooking chamber which is not screened by the foods is measured by comparing the variation in the electrical characteristics of components disposed external to the chamber. The electrical components are disposed in a position corresponding with the body and in a position corresponding with a part of the wall which is not associated with the body, such that ambient temperature variations in the body are compensated for by corresponding temperature variations in the wall not associated with the body.
    Type: Grant
    Filed: January 29, 1991
    Date of Patent: September 21, 1993
    Assignee: Whirlpool International B.V.
    Inventors: Claudio Civanelli, Ivano Frattini, Carlo Montanari