Patents by Inventor David O. Wahlander

David O. Wahlander 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).

  • MICROWAVE OVEN HAVING GENERATOR POWER SUPPLY
    Publication number: 20230422363
    Abstract: A microwave oven and a method of operating the same is provided herein. The method includes the steps of: sensing that a door of the microwave is in an open state; interrupting a power input to a generator power supply unit comprising a first converter, a first energy reserve, a second energy reserve located downstream from the first energy reserve, and a second converter located between the first and second energy reserves; detecting an input voltage; and disabling the second converter if the detected input voltage is less than a threshold voltage that is proportional to the detected input voltage, wherein disabling the second converter triggers the second energy reserve to discharge, and wherein the time necessary to discharge the second energy reserve is free of influence from the first energy reserve and is independent of the detected input voltage.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 28, 2023
    Applicants: WHIRLPOOL CORPORATION, Panasonic Holdings Corporation
    Inventors: Alessandro Gigante, Giuseppe Tarantino, Matteo Rinaldi, David O. Wahlander
  • Microwave oven having generator power supply
    Patent number: 11792897
    Abstract: A microwave oven and a method of operating the same is provided herein. The method includes the steps of: sensing that a door of the microwave is in an open state; interrupting a power input to a generator power supply unit comprising a first converter, a first energy reserve, a second energy reserve located downstream from the first energy reserve, and a second converter located between the first and second energy reserves; detecting an input voltage; and disabling the second converter if the detected input voltage is less than a threshold voltage that is proportional to the detected input voltage, wherein disabling the second converter triggers the second energy reserve to discharge, and wherein the time necessary to discharge the second energy reserve is free of influence from the first energy reserve and is independent of the detected input voltage.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: October 17, 2023
    Assignees: Whirlpool Corporation
    Inventors: Alessandro Gigante, Giuseppe Tarantino, Matteo Rinaldi, David O. Wahlander
  • MICROWAVE OVEN HAVING GENERATOR POWER SUPPLY
    Publication number: 20190223262
    Abstract: A microwave oven and a method of operating the same is provided herein. The method includes the steps of: sensing that a door of the microwave is in an open state; interrupting a power input to a generator power supply unit comprising a first converter, a first energy reserve, a second energy reserve located downstream from the first energy reserve, and a second converter located between the first and second energy reserves; detecting an input voltage; and disabling the second converter if the detected input voltage is less than a threshold voltage that is proportional to the detected input voltage, wherein disabling the second converter triggers the second energy reserve to discharge, and wherein the time necessary to discharge the second energy reserve is free of influence from the first energy reserve and is independent of the detected input voltage.
    Type: Application
    Filed: August 22, 2016
    Publication date: July 18, 2019
    Applicants: WHIRLPOOL CORPORATION, Panasonic Corporation
    Inventors: Alessandro Gigante, Giuseppe Tarantino, Matteo Rinaldi, David O. Wahlander