Patents by Inventor Mathieu DOMALAIN

Mathieu DOMALAIN 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).

  • REDUCTION RATIO CHANGING DEVICE
    Publication number: 20250033739
    Abstract: A reduction ratio changing device, so-called DCRR, for a mechanical chain transmission system includes a toothing. The toothing of the DCRR includes a portion, so-called the helical portion, forming a toothed helix winding around an axis of revolution of the DCRR and a portion, so-called the circular portion, forming a toothed planar circle whose centre coincides with the axis of revolution of the DCRR. The helical portion of the toothing extends from a distal end of the toothing of the DCRR towards the circular portion of the toothing. The circular portion of the toothing of the DCRR forms a proximal end of the toothing of the DCRR.
    Type: Application
    Filed: November 2, 2022
    Publication date: January 30, 2025
    Inventors: Jean-François DEBRIL, Antoine EON, Loïc FRECHE, Michael BEAU, Mathieu DOMALAIN, François DURAND