Patents by Inventor A. Gary Evans

A. Gary Evans 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).

  • Activated carbon material
    Patent number: 4111833
    Abstract: Activated carbon particles for use as iodine trapping material are impregnated with a mixture of selected iodine and potassium compounds to improve the iodine retention properties of the carbon. The I/K ratio is maintained at less than about 1 and the pH is maintained at above about 8.0. The iodine retention of activated carbon previously treated with or coimpregnated with triethylenediamine can also be improved by this technique. Suitable flame retardants can be added to raise the ignition temperature of the carbon to acceptable standards.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: September 5, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: A. Gary Evans