Patents by Inventor Raymond J. Domroski

Raymond J. Domroski 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: 4050694
    Abstract: A baseball batting practice kit containing a flexible ball tether swivelably suspended from a horizontal arm whose height is adjustable upon a vertical stand enables solitary batting practice by children who stand in correct relationship to the ball using a practice mat simulating a playing field surface including the shape of a home-plate. The mat is provided with a pair of simulated batter's boxes, each placed on opposite sides of a simulated home plate. One end of the horizontal arm is attached to a vertical standard which is supported by a weighted base. The other end of the horizontal arm has a reduced diameter which receives a looped end of the tether which suspends a ball. A clip is provided on the tether for reducing the diameter of the loop about the reduced diameter of the arm. The base of the batting practice device is placed at one of the simulated batter's boxes in order to suspend the ball over the simulated home plate to be struck by a better standing at the other simulated batter's box.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: September 27, 1977
    Inventor: Raymond J. Domroski