Patents Assigned to Robart Mfg. Inc.
  • Patent number: 6139392
    Abstract: A glider includes an aircraft body with a bottom surface and a longitudinal center of gravity. On the bottom surface are a number of depressions. The depressions are adapted to receive the fingers of the user. A first depression is positioned along a center line of the aircraft body. At least two other depressions are positioned between the first depression and a front end of the aircraft body. A weight receptacle is located near the front of the aircraft body and provides for increasing or decreasing the amount of weight needed in the aircraft depending on the desired flight pattern.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: October 31, 2000
    Assignee: Robart Mfg. Inc.
    Inventors: Robert L. Walker, Charles M. Sostak