Patents by Inventor Clifford E. Jackson

Clifford E. Jackson 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).

  • Disc filter
    Patent number: 3948779
    Abstract: A disc filter is provided with undulating filter material formed by ridges and grooves extending radially and alternating circumferentially to increase the effective area of the filter.
    Type: Grant
    Filed: August 9, 1974
    Date of Patent: April 6, 1976
    Inventor: Clifford E. Jackson
  • Filter
    Patent number: 3947361
    Abstract: The cylindrical filter surface of a drum filter is increased in effective area by providing radial inward and outward undulations in the general cylindrical shape instead of the cylindrical surface of the prior art.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: March 30, 1976
    Inventor: Clifford E. Jackson