Patents by Inventor Evert J. Steen

Evert J. Steen 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: 4703931
    Abstract: A rebounding net (16) is supported in a portable frame (19). The net (16) includes a rectangular forward end (18) which provides a ball entry/exit way of a certain area through which a ball can move. The net (16) further includes a rearward end (32) which provides a ball-rebounding surface, and the net's forward end is connected to its rearward end by converging sidewalls (24,26,28,30). The sidewalls (24,26,28,30) have a generally trapezoidal-like shape and the net's rearward end (32) has a generally rectangular shape. The net (16) is supported by the frame in such a manner that tension in the net can be adjusted to influence the net's ball rebounding or returning characteristics.
    Type: Grant
    Filed: November 7, 1985
    Date of Patent: November 3, 1987
    Inventor: Evert J. Steen