Patents by Inventor Birgit Wiesend

Birgit Wiesend 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).

  • Patent number: 10159118
    Abstract: A method for determining the suitability of a cookware for a corresponding induction coil of an induction cooking hob is provided. The method includes detecting current through the induction coil, detecting the phase difference between the voltage and current of the induction coil, and detecting the frequency at the induction coil. The method further includes comparing the detected current with a stored maximum value of the current, comparing the detected phase difference with a stored maximum value of the phase difference, comparing the detected frequency with a stored maximum frequency, calculating the power transfer from the detected current, phase difference and/or frequency, estimating the suitability of the cookware in dependence of the power transfer and at least one of the compared parameters, and outputting at least one optical and/or acoustic signal corresponding with the suitability of the cookware.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: December 18, 2018
    Assignee: Electrolux Appliances Aktiebolag
    Inventors: Michael Herzog, Claus Meider, Birgit Wiesend, Uwe Kallert, Ulrich Häutle
  • Publication number: 20160174297
    Abstract: The present invention relates to a method for determining the suitability of a cookware (20, 22) for a corresponding induction coil (14) of an induction cooking hob (10), wherein the method includes the steps of:—detecting the current through the induction coil (14), and/or—detecting the phase difference between the voltage and current of the induction coil (14), and/or—detecting the frequency at the induction coil (14), and—comparing the detected current with a stored maximum value of said current, and/or—comparing the detected phase difference with a stored maximum value of said phase difference, and/or—comparing the detected frequency with a stored maximum frequency, respectively, and—calculating the power transfer from the detected current, phase difference and/or frequency,—estimating the suitability of the cookware (20, 22) in dependence of the power transfer and at least one of the compared parameters, and—outputting at least one optical and/or acoustic signal corresponding with the suitability of the
    Type: Application
    Filed: September 4, 2014
    Publication date: June 16, 2016
    Applicant: Electrolux Appliances Aktiebolag
    Inventors: Michael Herzog, Claus Meider, Birgit Wiesend, Uwe Kallert, Ulrich Häutle