Patents by Inventor David E. Miall

David E. Miall 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).

  • Ventilation air and process air distribution for in situ oil shale retorts
    Patent number: 4379590
    Abstract: A ventilation and process air distribution system is provided for an in situ oil shale retort system which includes a production region having a cluster of retorts producing gaseous and liquid products and a retort preparation region where in situ retorts are being prepared for production. An underground air delivery drift system distributes process air to the production region and ventilation air to underground workings in the retort preparation region. A liquid collection drift system extends at or below the bottoms of the retorts in the production region and in the retort preparation region. The liquid collection drifts connect to an exhaust airway leading above ground and having an induction fan for inducing ventilation air to flow through the retort preparation region at a pressure lower than ambient air pressure above ground.
    Type: Grant
    Filed: July 1, 1980
    Date of Patent: April 12, 1983
    Assignee: Occidental Oil Shale, Inc.
    Inventors: Gordon B. French, Eugene A. Mills, David E. Miall
  • Frame corner connector
    Patent number: D311680
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: October 30, 1990
    Assignee: Display Systems International Ltd.
    Inventor: David E. Miall