Patents by Inventor Neal A. Schaffel

Neal A. Schaffel 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).

  • Lubrication for hot working rare earth-transition metal alloys
    Patent number: 4780226
    Abstract: Improved lubrication of tools for hot working rare earth-transition metal alloy particles is provided by suitably applied glass or glass/graphite lubricants.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: October 25, 1988
    Assignee: General Motors Corporation
    Inventors: Louis E. Sheets, Neal A. Schaffel
  • Hot pressed permanent magnet having high and low coercivity regions
    Patent number: 4710239
    Abstract: In accordance with a preferred embodiment, an arcuate magnet is formed by selectively hot working a composition including iron, neodymium and/or praseodymium, and boron such that an edge of the arcuate has greater apparent coercivity than a central region and the central region has a higher remanence than the edge.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: December 1, 1987
    Assignee: General Motors Corporation
    Inventors: Robert W. Lee, Neal A. Schaffel