Patents by Inventor Richard A. Sponer

Richard A. Sponer 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: 4801465
    Abstract: A dispenser apparatus for dispersing a solid particulate material and a fluid simultaneously under pressure. The dispenser apparatus includes a sealed container having an aperture at a top end. A first conduit extends through the aperture into the interior of the container for flow of particulate material from the interior of the container. A second conduit sealed at one end is housed within the container and contains a pressurized fluid. Both of the first and second conduits are connected in fluid flow communication to first and second valves mounted at the top end of the container. The first and second valves are closed and opened to fluid flow via a cap mounted on the top end of the container. The cap is biased to a normal position closing the valves to fluid flow.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: January 31, 1989
    Inventor: Richard A. Sponer