Patents by Inventor Paul R. Roskopf

Paul R. Roskopf 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).

  • Dry die wall lubrication
    Patent number: 6190605
    Abstract: A method for high density long fill compaction of metallic powders uses a precisely temperature controlled mold and a dry sprayed lubricant which has the characteristic of softening on contact with the mold and smearing on the mold wall during compaction, yet on ejection not causing powder adherence.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: February 20, 2001
    Assignee: Zenith Sintered Products, Inc.
    Inventors: Terry M. Cadle, Joel H. Mandel, Paul R. Roskopf