Patents by Inventor David M Ford

David M Ford 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).

  • Method and apparatus for detecting tire pressure
    Patent number: 6877371
    Abstract: A method and apparatus of characterizing for tire pressure imbalances in a set of tires of vehicle, the vehicle having four wheels, and each wheel having a sensor generating a pulse for a predetermined amount of distance traveled by the wheel including entering a first characterization mode, accumulating a number of pulses from each sensor and adding the number of pulses from each sensor to generate a first record total pulse count in the characterization mode, generating a second record total pulse count in the characterization mode, determining if the first record is similar to the second record, and discarding at least one of the first and second records if the first and second records do not meet a criteria.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: April 12, 2005
    Assignee: General Motors Corporation
    Inventors: Allen J. Walenty, Onno R. Van Eikema Hommes, David M Ford, J. David Rosa