Patents by Inventor Peter W. CHEW

Peter W. CHEW 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).

  • Pixelated electrostatic adhesion
    Patent number: 11831252
    Abstract: Control for pixelated electrostatic adhesion can be provided by a voltage converter configured to increase an input voltage to an output voltage; a first gripping circuit, configured to selectively provide the output voltage at a first polarity to a first subset of electrodes of a plurality of electrodes; a second gripping circuit, configured to selectively provide the output voltage at a second polarity opposite to the first polarity to a second subset of electrodes of a plurality of electrodes that are associated with and different from the first subset of electrodes; a first release circuit, configured to selectively reverse the output voltage provided to the first subset of electrodes to the second polarity; and a second release circuit, configured to selectively reverse the output voltage provided to the second subset of electrodes to the first polarity.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: November 28, 2023
    Assignee: THE BOEING COMPANY
    Inventors: David M. Bain, Craig J. Turner, Peter W. Chew, Brittany P. Chambers
  • PIXELATED ELECTROSTATIC ADHESION
    Publication number: 20230179124
    Abstract: Control for pixelated electrostatic adhesion can be provided by a voltage converter configured to increase an input voltage to an output voltage; a first gripping circuit, configured to selectively provide the output voltage at a first polarity to a first subset of electrodes of a plurality of electrodes; a second gripping circuit, configured to selectively provide the output voltage at a second polarity opposite to the first polarity to a second subset of electrodes of a plurality of electrodes that are associated with and different from the first subset of electrodes; a first release circuit, configured to selectively reverse the output voltage provided to the first subset of electrodes to the second polarity; and a second release circuit, configured to selectively reverse the output voltage provided to the second subset of electrodes to the first polarity.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 8, 2023
    Inventors: David M. BAIN, Craig J. TURNER, Peter W. CHEW, Brittany P. CHAMBERS