Patents by Inventor Keyser K. Lau

Keyser K. Lau 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).

  • Remote analysis using thermal radiation
    Patent number: 4355231
    Abstract: A method for remote analysis of a mixture of materials where one of the components has thermal characteristics different from the other components. In a preferred embodiment, tar sands on a moving belt or dropping into a hopper are irradiated with infrared radiation and the radiant thermal flux of the heated tar sands is remotely detected and measured to determine bitumen content.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: October 19, 1982
    Assignee: Suncor Inc.
    Inventors: James L. Lauer, Keyser K. Lau
  • Method for bitumen analysis and apparatus therefor
    Patent number: 4337396
    Abstract: Sand containing bitumen and like materials containing organic matter is analyzed quantitatively for its hydrocarbon content by use of a remote infrared sensor. In a preferred embodiment the bitumen is on a conveyor to further processing and if found unacceptable for processing by the method of the invention, the sand is automatically diverted. The invention also embodies the apparatus used for the analysis.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: June 29, 1982
    Assignee: Suncor Inc.
    Inventors: James L. Lauer, Vincent W. King, Keyser K. Lau