Patents by Inventor Donald E. Semones

Donald E. Semones 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).

  • Chemically accelerated metal finishing process
    Patent number: 3979858
    Abstract: A process for barrel finishing, vibratory finishing, deburring or polishing the surface of a metal workpiece such as a zinc die casting is described. The article to be finished is subjected to agitation in a rotating barrel or a vibratory machine containing abrasive media and an aqueous accelerator solution of a lower aliphatic acid having at least two and not more than six carbon atoms. The accelerator solution may also contain sodium bisulfate. In the process, the accelerator solution is added to or flushed through the finishing apparatus.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: September 14, 1976
    Assignee: International Lead Zinc Research Organization, Inc.
    Inventors: Donald E. Semones, William H. Safranek