Patents by Inventor John J. Childress

John J. Childress 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).

  • Low elevation coal processing plant
    Patent number: 6607248
    Abstract: The present invention is to an improved method of constructing a coal processing plant and an improved arrangement therefore. The overall cost of constructing a coal processing plant can be significantly reduced by the arrangement of the processing to terminate in an underground sump. By providing a subfloor to the plant with subterranean sumps, the overall height necessary to house a plant can be reduced significantly.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: August 19, 2003
    Inventor: John J. Childress