Patents by Inventor Dennis J. McCann

Dennis J. McCann 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).

  • Trailer brake control for towing vehicles having electronic brake control
    Patent number: 5002343
    Abstract: An electronic braking system for a towing vehicle for towing a standard semi-trailer without such a braking system has a separate pressure control channel for the generation of trailer brake pressure whenever the towing vehicle is braked or if the parking brake of the towing vehicle is applied. The pressure signal level set in the towing vehicle is a function of the driver's electrical demand signal, compensated for trailer load and operating gradient. The compensation for trailer load is evaluated by assessing the total trailer mass from measurements of towing load during acceleration and substracting from this value the portion of the trailer load being supported by the towing vehicle as sensed by vertical force protection means on the towing means.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: March 26, 1991
    Assignee: Lucas Industries public limited company
    Inventors: Malcolm Brearley, Dennis J. McCann, Richard B. Moseley