Patents by Inventor Janice E. Hamilton

Janice E. Hamilton 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).

  • Acid cleaning of drums with interior linings
    Patent number: 4957566
    Abstract: A method and means is provided for cleaning of drums with interior linings wherein sulfuric acid is utilized. The process of the present invention is especially suitable for cleaning epoxy, phenolic, epoxy phenolic linings and other linings from steel drums. In certain instances chains may be used in conjunction with the cleaning process.
    Type: Grant
    Filed: December 31, 1985
    Date of Patent: September 18, 1990
    Inventors: Ronald J. Evans, Janice E. Hamilton