Patents by Inventor Rene S. Trujillo

Rene S. Trujillo 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).

  • Vehicle brake test system
    Patent number: 4893242
    Abstract: A brake test method measures the brake force per axle of a vehicle by having an operator linearly depress the vehicle brake pedal while the axle's left and right wheels positioned on torque motor driven, constant speed rollers. The roller drive torque magnitude is periodically sampled and the samples are filtered to remove ovality discontinuities, the left and right side filtered samples are then compared to detect the maximum brake force imbalance.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: January 9, 1990
    Assignee: United Technologies Corporation
    Inventors: John N. Rogers, James M. Lady, Donald W. Bilsbarrow, Rene S. Trujillo