Patents by Inventor Charles W. Stump

Charles W. Stump 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).

  • Film advance indicator
    Patent number: 4311378
    Abstract: A film advancement indicator which includes an optical sensor 21 that detects the rotational movement of a disc 18 that rotates only when the film 14 advances. When the film 14 does not advance, an indicator light 29 is activated. A counter 26 is included in the electronic circuit to determine the number of film frames advanced.
    Type: Grant
    Filed: July 18, 1980
    Date of Patent: January 19, 1982
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: E. Thomas Freeman, Charles W. Stump, Francis W. Dreisbach
  • Apparatus for measuring an aircraft's speed and height
    Patent number: 4135817
    Abstract: Apparatus for measuring an aircraft's horizontal speed and height above ground without the need for airborne cooperative devices. Two ground level TV cameras separated by a measured distance and pointed at zenith are placed in line with the projection of the expected path of the aircraft. Speed is determined by measuring the time that it takes the aircraft to travel between the fields of view of the two TV cameras using zenith crossings as the reference points. Height is determined by correlating the speed with the time required to cross the field of view of either of the two cameras.
    Type: Grant
    Filed: March 9, 1978
    Date of Patent: January 23, 1979
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: William R. Young, Charles W. Stump