Patents by Inventor Harold S. Gadsby

Harold S. Gadsby 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).

  • Inflatable pool cover
    Patent number: 4953239
    Abstract: An inflatable swimming pool cover which, when installed and inflated, floats on the swimming pool water's surface and has a bulbous surface rising above the level of the swimming pool's perimeter. A small blower with its exhaust directed into the interior space of the cover initially inflates the cover and thereafter maintains the cover during its use.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: September 4, 1990
    Inventor: Harold S. Gadsby