Patents by Inventor Tommy Ray Edwards

Tommy Ray Edwards 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).

  • Catalyst screening unit
    Patent number: 3948764
    Abstract: A catalyst screening unit having a housing which receives incoming feed catalyst under positive pressure, a screen for sizing and separating whole catalyst from broken catalyst, dust, and fines, a vibrating member to vibrate the housing and the screen therewith, and a lower, waste chamber for collecting broken catalyst and fines to be directed outwardly therefrom the housing, and having vacuum provisions therewith for removing dust separately from the fines, such that the cleaned whole catalyst may be used within a catalytic reactor.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: April 6, 1976
    Assignee: Browning-Ferris Industries, Inc.
    Inventor: Tommy Ray Edwards