Patents by Inventor Carl N. Harris

Carl N. Harris 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).

  • Patent number: 6020813
    Abstract: The turn signal system of the invention utilizes a timing circuit to electrically activate and deactivate the flashing turn signal. The invention system also utilizes a pair (left, right) of auxiliary, spring-loaded, momentary contact, normally open switches arranged such that if the driver actuates the turn signal lever for a turn, even though the lever is in the actuated position for that turn, the turn signal flashing circuit is reactivated by the momentary closing of the auxiliary switch and the cycle is restarted. The system of the invention is also characterized by the timing circuit being dependent for its operation on signals received from the vehicle's speed sensor such that the timing circuit will not operate unless there is a signal from the speed sensor to indicate the vehicle is moving.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: February 1, 2000
    Inventors: Carl N. Harris, Dewey F. Harris
  • Patent number: 4526479
    Abstract: A self-contained, battery-powered, hand-held and finger-actuated timer produces switch controlled signals at a series of increasing time intervals for timing athletic games and in form which allows the user to retain visual contact with the game being timed and also so as to leave the user's fingers free for finger signaling, or the like.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: July 2, 1985
    Inventor: Carl N. Harris