Patents by Inventor Craig S. Grinsteiner

Craig S. Grinsteiner 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).

  • Refuse derived fuel delivery system and distribution conveyors
    Patent number: 4686913
    Abstract: Apparatus for feeding solid waste material to one or more chargers of the type for forcing solid waste material into a furnace or boiler. An elongated auger housing is mounted above the chargers and includes a plurality of openings along its length and for depositing solid waste material into hoppers of the chargers. An auger is supported in the housing and conveys solid waste from one end of the auger housing to the other. A supply conveyor is provided for carrying a continuous supply of solid waste material to one end of the auger housing from a supply container. A return conveyor is positioned adjacent a discharge end of the auger housing and returns excess waste material to the supply container.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: August 18, 1987
    Inventors: Donald J. Kaminski, Ernest A. Frank, Craig S. Grinsteiner