Patents by Inventor Donald E. Vaughn

Donald E. Vaughn 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: 4906001
    Abstract: A football centering device. A cradle for a football is mounted at the end of a spring-loaded, pivotally mounted arm member that pivots in a vertical plane and which is mounted on an upstanding post. A latch holds the cradle in a cocked position near ground level until the player releases the latch with his foot. When the latch is released, the spring unloads and the arm swings upwardly in a vertical plane. The cradle at the end of the arm delivers the ball to the player in a manner that closely simulates the delivery of a human center.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: March 6, 1990
    Inventor: Donald E. Vaughn