Patents by Inventor Earl R. White

Earl R. White 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).

  • Patent number: 4805702
    Abstract: The present invention relates to methods and apparatus for dispersing rock dust within a mine tunnel. The present invention is particularly useful for rock dusting coal mines. A quantity of rock dust is dispersed evenly over the conveyor system which runs through the area of the mine which requires dusting. The apparatus of the present invention comprises a wheeled vehicle having a diesel engine which drives the vehicle. In addition, the diesel engine drives a blower or fan. The vehicle of the present invention is adapted to run along the conveyor system within the mine. As a result, the vehicle runs over the rock dust which is dispersed on the conveyor belt. As the vehicle passes over the rock dust the fan which is associated with the vehicle blows into the rock dust causing the rock dust to disperse from the conveyor belt and to coat the associated interior tunnel.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: February 21, 1989
    Assignee: Utah Power & Light
    Inventor: Earl R. White