Patents by Inventor John I. Cromarty

John I. Cromarty 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: 5419562
    Abstract: In method and apparatus for analyzing motion of an individual for a predetermined activity, such as during a golf swing, forces on weight pads supporting the individual's feet are converted to signals corresponding to relative weights and dynamic forces on the weight pads. These parameters are displayed numerically as well as graphically on a video image of the individual during performance of the activity, in order to enable the analysis of variation in weight distribution and dynamic forces during the activity.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: May 30, 1995
    Inventor: John I. Cromarty
  • Patent number: 4304406
    Abstract: A golf training and practice apparatus has a television display and a plurality of sensors for sensing positions of a head of a golf club during the swing at a ball at a given location. A circuit responsive to the times of positioning of the head with respect to the sensors provides output signals to enable display on the television display of a graphic representation of the direction of the swing. The circuit also enables alphanumeric display of other parameters of the swing, and provides on the television display a fixed image of the angle of the face of the club at a time just before the ball reaches the ball position location. In order to also provide information relating to the golfer's stance, the apparatus includes sensors for indicating in alphanumeric characters the relative weight on each of the golfer's feet during various portions of the swing.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: December 8, 1981
    Inventor: John I. Cromarty