Patents by Inventor Roger Eraud

Roger Eraud 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).

  • Tread for off-the-road tires
    Patent number: 4470443
    Abstract: A tire whose crown is extended on both sides by a sidewall terminating in a bead and is provided with a tread formed in the major part of adjacent blocks separated from each other in the axial direction of the tire by circumferential or oblique grooves is characterized by the fact that at least some of the circumferential or oblique grooves separating the adjacent blocks in the axial direction have a cross section which decreases substantially from the leading edge to the trailing edge of the blocks.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: September 11, 1984
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Roger Eraud