Patents by Inventor Eddie W. Campbell

Eddie W. Campbell 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).

  • Hopper tee and integral discharge valve
    Patent number: 6582160
    Abstract: The hopper tee provides increased material flow rates and includes a first hollow pipe section having an upper end and an opposite lower end, the upper end including an inlet opening for connecting to a discharge opening of a hopper for receiving material contained in the hopper therethrough, and an interior cylindrical side wall forming an internal passage connecting the inlet opening to the lower end for flow of the material thereto.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: June 24, 2003
    Inventors: Eddie W. Campbell, Thomas J. Mueller
  • Hopper tee and integral discharge valve
    Publication number: 20020187013
    Abstract: The hopper tee provides increased material flow rates and includes a first hollow pipe section having an upper end and an opposite lower end, the upper end including an inlet opening for connecting to a discharge opening of a hopper for receiving material contained in the hopper therethrough, and an interior cylindrical side wall forming an internal passage connecting the inlet opening to the lower end for flow of the material thereto.
    Type: Application
    Filed: June 7, 2001
    Publication date: December 12, 2002
    Inventor: Eddie W. Campbell