Patents by Inventor Walter W. Shelton

Walter W. Shelton 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).

  • Method for drying particulate law rank coal in a fluidized bed
    Patent number: 4571174
    Abstract: An improved method for drying particulate low rank coal in a fluidized bed wherein the improvement comprises flowing hot fluidizing gas of varying temperatures upwardly through the fluidized bed so that the hottest fluidizing gas flows upwardly through the coal nearest the coal inlet and the coolest fluidizing gas flows upwardly through the coal nearest the dried coal outlet from the fluidized bed.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: February 18, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Walter W. Shelton