Patents by Inventor Joseph M. Riggio

Joseph M. Riggio 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: 6142327
    Abstract: The invention provides a container for products free from moisture, such as potassium in an emulsified state. The container has sloping sides to facilitate the emptying of the container. The container is surrounded by a frame, which allows the stacking of several containers. The frame has forklift guides to facilitate movement by forklifts. The frame also has hoist lugs to facilitate movement by hoists. An assist vent valve is used to assist the filling and emptying of the container. The assist vent valve is removable, to allow the replacement of the assist vent valve, when an assist vent valve is damaged, or clogged.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: November 7, 2000
    Assignee: United Defense, L.P.
    Inventors: Joseph M. Riggio, Charles C. Redmon