Patents by Inventor Frederick C. Holtz, Jr.

Frederick C. Holtz, Jr. 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).

  • Alloy composition and process
    Patent number: 4576642
    Abstract: Fully dense consolidated powder alloys of iron, cobalt and/or nickel characterized by having an ultrafine microstructure exhibiting a substantially uniformly dispersed harding phase of particle size essentially less than 3 microns, are produced from prealloyed powders by rapidly quenching an atomized molten alloy charge and subjecting the solidified alloy powder particles to the step of hot consolidation to produce substantially fully dense metal stock directly from prealloyed powder.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: March 18, 1986
    Assignee: Crucible Materials Corporation
    Inventor: Frederick C. Holtz, Jr.
  • Sintered high speed tool steel alloy composition
    Patent number: 4469514
    Abstract: Fully dense consolidated powder alloys of iron, cobalt and/or nickel characterized by having an ultrafine microstructure exhibiting a substantially uniformly dispersed harding phase of particle size essentially less than 3 microns, are produced from prealloyed powders by rapidly quenching an atomized molten alloy charge and subjecting the solidified alloy powder particles to the step of hot consolidation to produce substantially fully dense metal stock directly from prealloyed powder.
    Type: Grant
    Filed: October 8, 1974
    Date of Patent: September 4, 1984
    Assignee: Crucible, Inc.
    Inventor: Frederick C. Holtz, Jr.
  • High toughness ceramic cutting tool
    Patent number: 4366254
    Abstract: High-toughness, high-wear resistance cutting tool based on alumina are formed by additions of zirconia and optionally refractory metal carbides or nitrides.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: December 28, 1982
    Assignee: The Valeron Corporation
    Inventors: Dennis J. Rich, Frederick C. Holtz, Jr.
  • High toughness ceramic cutting tool
    Patent number: 4343909
    Abstract: Extremely tough, strong and wear resistant cold pressed and sintered inserts consisting essentially of from about 4 to 20% zirconia, from about 1-15% titanium diboride, and up to about 10% grain growth inhibiting sintering aid with the balance being alumina.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: August 10, 1982
    Assignee: The Valeron Corporation
    Inventors: James H. Adams, Dennis J. Rich, Frederick C. Holtz, Jr.