Patents by Inventor Charles G. Collins

Charles G. Collins 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).

  • Method for producing catalyst pellets of uniform size
    Patent number: 4239140
    Abstract: A catalyst strand sizer is described which produces catalyst pellets of uniform preselected length without producing an excessive amount of fines. The catalyst sizer comprises two fixed rotatable rolls wherein one roll has a compressible surface and the other roll is covered with a wire mesh of selected dimensions whereby when the catalyst strand extrudate is passed between said rolls, the strands are broken into catalyst pellets of preselected length.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: December 16, 1980
    Assignee: Shell Oil Company
    Inventor: Charles G. Collins
  • Apparatus for producing catalyst pellets of uniform size
    Patent number: 4139134
    Abstract: A catalyst strand sizer is described which produces catalyst pellets of uniform preselected length without producing an excessive amount of fines. The catalyst sizers comprises two fixed rotatable rolls wherein one roll has a compressible surface and the other roll is covered with a wire mesh of selected dimensions whereby when the catalyst strand extrudate is passed between said rolls, the strands are broken into catalyst pellets of preselected length.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: February 13, 1979
    Assignee: Shell Oil Company
    Inventor: Charles G. Collins