Patents by Inventor Darwin Edward Kiel

Darwin Edward Kiel 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).

  • SYSTEM, APPARATUS AND PROCESS FOR EXTRACTION OF BITUMEN FROM OIL SANDS
    Publication number: 20080149542
    Abstract: An extraction system and process for extracting bitumen from a slurry containing bitumen, solids and water. The system comprises a cyclone separation facility for separating the slurry into a solids component stream and a bitumen froth stream with the bitumen froth stream including water and fine solids. The bitumen froth stream is then delivered to a froth concentration facility for separating the bitumen froth stream into a final bitumen enriched froth stream, and a water and fine solids stream. The final bitumen enriched froth stream is suitable for further processing. The system of the present invention is preferably mobile so that the cyclone extraction facility and the froth concentration facility can move with the mine face at an oil sands mining site, however, it is also contemplated that the system can be retrofitted to existing fixed treatment facilities to improve the operational efficiency of such fixed facilities.
    Type: Application
    Filed: November 9, 2007
    Publication date: June 26, 2008
    Applicant: SUNCOR ENERGY INC.
    Inventors: BRADFORD E. BJORNSON, CRAIG AARON STRAND, WILLIAM NICHOLAS GARNER, JOHN KHAI-QUANG DIEP, DARWIN EDWARD KIEL, THOMAS CHARLES HANN
  • Polymerization process using a dual shear mixing element
    Patent number: 6319996
    Abstract: A dual shear mixing element for use in a chemical reactor. The device may be used in processes where liquids of different temperatures need to be thoroughly mixed in a short period of time and solute must stay in solution. The present invention is particularly useful in the solution polymerization of polyolefins, especially in the medium pressure process for the preparation of linear low density polyethylene.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: November 20, 2001
    Assignee: Nova Chemical (International) S.A.
    Inventors: Annette Lynn Burke, Edward Christopher Foy, John Iatrou, Umesh Karnik, Darwin Edward Kiel, Vaclav George Zboril
  • Pipeline optical flow meter
    Patent number: 6275284
    Abstract: The present invention provides an optical device for the measurement of flow rates of fluid through a pipe. The device broadly comprises a narrow frequency light source, an optical delivery system, a collector for light scattered from particles in the fluid, and a photo detector. In a preferred embodiment, the optical delivery system and the collector are contained within the pipe.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: August 14, 2001
    Assignee: Nova Gas Transmission Ltd.
    Inventors: Darwin Edward Kiel, Ian David Williamson, Jason L. Szabo
  • Optical flow meter integrally mounted to a rigid plate with direct optical access to the interior of a pipe
    Patent number: 6128072
    Abstract: The present invention provides an optical device for the measurement of flow rates of fluid through a pipe. The device broadly comprises a narrow frequency light source, an optical delivery system, a collector for light scattered from particles in the fluid, and a photo detector. In a preferred embodiment, the optical delivery system and the collector are contained within the pipe.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: October 3, 2000
    Assignee: NOVA Gas Transmission Ltd.
    Inventors: Darwin Edward Kiel, Ian David Williamson
  • Mixing element for a chemical reactor
    Patent number: 6024483
    Abstract: A dual shear mixing element includes an auger and an impeller for use in a chemical reactor. The device may be used in processes where liquids of different temperatures need to be thoroughly mixed in a short period of time and solute must stay in solution. The present invention is particularly useful in the solution polymerization of polyolefins, especially in the medium pressure process for the preparation of linear low density polyethylene.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: February 15, 2000
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Annette Lynn Burke, Edward Christopher Foy, John Iatrou, Umesh Karnik, Darwin Edward Kiel, Vaclav George Zboril