Patents by Inventor Gilles Douet

Gilles Douet 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).

  • Tire tread having improved rigidity
    Patent number: 9174493
    Abstract: Tire tread having at least two wearing layers, provided with at least one continuous groove having in the as new condition a plurality of external cavities opening onto the tread surface and a plurality of internal cavities placed radially and completely inside the tread surface, such that: the difference between the mean lengths of the internal cavities and of the external cavities is at most equal to 20% of the longest mean length, the difference in the mean cross-sectional areas of the internal and external cavities is at most equal to 20% of the largest mean area, each external cavity of a continuous groove being connected to at least two internal cavities of the same groove and having a plurality of incisions opening onto the tread surface, each connecting two consecutive external cavities of the same groove and at least two connecting channels and at least one internal cavity.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: November 3, 2015
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Richard Audigier, Stéphane Oraison, Mathieu Vandaele, Gilles Douet
  • TIRE TREAD HAVING IMPROVED RIGIDITY
    Publication number: 20120227883
    Abstract: Tire tread having at least two wearing layers, provided with at least one continuous groove having in the as new condition a plurality of external cavities opening onto the tread surface and a plurality of internal cavities placed radially and completely inside the tread surface, such that: the difference between the mean lengths of the internal cavities and of the external cavities is at most equal to 20% of the longest mean length, the difference in the mean cross-sectional areas of the internal and external cavities is at most equal to 20% of the largest mean area, each external cavity of a continuous groove being connected to at least two internal cavities of the same groove and having a plurality of incisions opening onto the tread surface, each connecting two consecutive external cavities of the same groove and at least two connecting channels and at least one internal cavity.
    Type: Application
    Filed: September 28, 2010
    Publication date: September 13, 2012
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., SOCIETE DE TECHNOLOGIE MICHELIN
    Inventors: Richard Audigier, Stéphane Oraison, Mathieu Vandaele, Gilles Douet