Patents by Inventor Jean L. Charvet

Jean L. Charvet 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).

  • Pneumatic tire having bead rings each formed by a stack of ribbons of curved shape
    Patent number: 4794967
    Abstract: A pneumatic tire has beads each of which is reinforced by a bead ring formed of a stack of ribbons of curved shape. The bead ring is characterized by the following features when the tire is mounted on its rim:(a) the concavity of the ribbons faces the axis of rotation of the tire;(b) a straight line connecting the ends of any ribbon forms with the axis of rotation of the tire an acute angle .alpha. such that .alpha..gtoreq..beta.+5 if .beta. is positive and .alpha..gtoreq.5 if .beta. is negative, .beta. being the angle of the bead seat of the rim, .alpha. and .beta. being expressed in degrees.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: January 3, 1989
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Jean L. Charvet