Patents by Inventor Marcel Scharen

Marcel Scharen 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).

  • Publication number: 20220236760
    Abstract: A joystick for an electrically-powered wheelchair includes a shaft pivotally mounted in a base and configured to control a movement of the electrically-powered wheelchair; a reset sleeve positioned over a lower portion of the shaft proximate the base; a compression spring positioned over the shaft with one end of the compression spring compressed against or fixed to an upper portion of the shaft and an opposing end of the compression spring compressed against the reset sleeve; and a flexible clip positioned over the shaft at the opposing end of the compression spring and between the compression spring and the reset sleeve, the flexible clip being removably positioned on the shaft so as to compress the compression spring between the flexible clip and a point at which the compression spring is compressed against or fixed to the upper portion of the shaft.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 28, 2022
    Inventors: Thomas Stucki, Marcel Scharen