Patents by Inventor James Van Dyck Fear

James Van Dyck Fear 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 of reducing sludge accumulation from tar sands hot water process
    Patent number: 3953318
    Abstract: A method for reducing the sludge layer in an effluent retention pond associated with hot water extraction of bitumen from tar sands comprising recycling sludge from the retention pond to aid in removing the aqueous effluent discharge from the extraction process and thereby effect a reduction of the volume of the sludge layer in the pond.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: April 27, 1976
    Assignee: Great Canadian Oil Sands Limited
    Inventors: Robert A. Baillie, James Van Dyck Fear
  • Method of reducing sludge accumulation from tar sands hot water process
    Patent number: 3931006
    Abstract: A method for reducing the sludge layer in an aqueous effluent retention pond associated with hot water extraction of bitumen from tar sands comprising dispersing the aqueous effluent discharge from the extraction process containing bitumen, sand, water, silt and clay over the surface of the pond thereby effecting a reduction in the volume of the sludge layer in the pond.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: January 6, 1976
    Assignee: Great Canadian Oil Sands Limited
    Inventors: Robert A. Baillie, James Van Dyck Fear