Patents by Inventor Paul R. Wopschall

Paul R. Wopschall 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: 3941384
    Abstract: Equipment for playing hoop ball comprises a hollow inflatable balloon of toroidal shape having a central circular opening of sufficient diameter for passing a ball through it. A basket which may be somewhat similar to a basket used in playing basketball is attached to the balloon around the central opening and a tether is attached to the basket and secured to a suitable anchoring device which may be placed on the ground so that when inflated with a gas lighter than air, the balloon floats upward to an extent permitted by the length of the tether and in a position such that the central toroidal axis is in a vertical position so that a ball thrown upward can drop through the central opening and into the basket.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: March 2, 1976
    Inventor: Paul R. Wopschall