Patents by Inventor Phuoc T. Le

Phuoc T. Le 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).

  • Low aspect ratio truck tire
    Patent number: 5616195
    Abstract: An improved pneumatic radial ply truck tire 10 having an aspect ratio below 0.70 is designed to replace two conventional truck tires on the trailer axle of semi-trailers. These tires 10 are commonly referred to as Super Single Tires. The improved tire 10 has a radially outer tread surface 30 which is defined by three radii of curvature R.sub.1, R.sub.2, and R.sub.3 on each side of the tread centerline C.sub.L. Radii R.sub.1 and R.sub.2 are internal to the tire 10 whereas radius R.sub.3 is external to the tire 10 and defines the outer surface 30C of the tread shoulder region. The combination of curvatures 30A, 30B and 30C yields a substantially rectangular contact patch greatly improving the treadwear rates of the tire 10. The tire 10 has the radius R.sub.2 in the range of 1.3 to 2 times the radius of curvature R.sub.1, the external radius R.sub.3 is in the range of 0.7 to 2.5 times the first radius of curvature R.sub.1, preferably in the range of 1.0 to 2.5 times R.sub.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: April 1, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michel E. J. Marquet, Phuoc T. Le