Patents by Inventor Wilhelm D. Behrens

Wilhelm D. Behrens 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).

  • Tennis and golf training device having an adjustable hoop
    Patent number: 8801548
    Abstract: A portable training device to be used by one practicing the game of tennis or golf. The training device includes a stand to rest on a flat surface, an adjustable hoop through which a tennis ball or a golf ball is hit, and a hoop support extending between the stand and the hoop. The adjustable hoop is rotatable between a vertical position, standing upwardly from and in axial alignment with the hoop support, and a horizontal position, facing the flat surface in perpendicular alignment with the hoop support. The length of the hoop support is adjustable so that the distance between the hoop and the stand can be correspondingly adjusted to meet the needs of the user.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: August 12, 2014
    Inventors: Charles E. Swingle, Wilhelm D. Behrens