Patents by Inventor Tim Sundstrom

Tim Sundstrom 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 for controlling the microwave energy in a microwave oven, and microwave oven for implementing the method
    Patent number: 5317133
    Abstract: A microwave oven having a pulsed magnetron comprises a timing circuit which determines a cooking time and the pulse duration when the magnetron is pulsed. By means of a time and power setting device, the cooking time and the pulse duration are adapted to a food introduced into the oven chamber. At least one operation parameter affecting the magnetron output is measured and compared with the nominal value of the parameter. In the event of a difference between the measured and the nominal parameter value, the cooking time and/or the pulse duration is/are corrected in relation to the set values in order to eliminate the effect of this difference on the total quantity of energy supplied during cooking.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: May 31, 1994
    Assignee: Whirlpool Europe B.V.
    Inventors: Tim Sundstrom, David Wahlander