Patents by Inventor Frederick Joseph Ravagnani

Frederick Joseph Ravagnani 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 ply steer control
    Patent number: 4016916
    Abstract: A pneumatic tire provided with a tread portion, at least one body ply, and at least two stabilizer plies interposed between the tread and body ply, the radially innermost of the stabilizer plies having reinforcing cords oriented at an angle of approximately 54.degree. to a meridian line of the tire to substantially eliminate ply steer force in the tire. The average angle of the reinforcing cords in all of the stabilizer plies may be made approximately 68.degree. to a meridian line of the tire to provide good cornering stiffness force characteristics in the tire.
    Type: Grant
    Filed: April 7, 1975
    Date of Patent: April 12, 1977
    Assignee: The Firestone Tire & Rubber Company
    Inventor: Frederick Joseph Ravagnani