Patents by Inventor Gilbert A. Saltzman

Gilbert A. Saltzman 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).

  • Method of refurbishing cast gas turbine engine components and refurbished component
    Patent number: 4878953
    Abstract: The refurbishing process permits an overlay to be formed on a casting to repair cracks, distortions and the like as well as to build up undersized sections. During refurbishing, a plasma arc is established under an electric current of less than 30 amps to form a shallow pool of molten metal on a casting. Powdered metal is delivered slightly above the molten pool and, subsequently, the melted powder and molten pool solidify to an overlay having a high integrity, cast structure which is metallurgically bonded to the casting with minimal dilution.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: November 7, 1989
    Assignee: Metallurgical Industries, Inc.
    Inventors: Gilbert A. Saltzman, Timothy A. Wertz, Ira L. Friedman
  • Process of fabricating a cutting edge on a tool and a cutting tool made thereby
    Patent number: 4864094
    Abstract: A cutting tool is provided with a fabricated cutting edge which is applied using a low heat plasma transferred arc and powdered metal. The heat affected zone between the applied edge and the substrate is maintained at a minimum with low dilution and penetration of the applied material relative to the substrate.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: September 5, 1989
    Assignee: Metallurgical Industries, Inc.
    Inventors: Gilbert A. Saltzman, Timothy A. Wertz, Ira L. Friedman
  • Rebuilt shrouded turbine blade and method of rebuilding the same
    Patent number: 4822248
    Abstract: The shrouded turbine blade is provided with a wear resistant surface on the seals as well as along the abutment faces including the notched edges. The wear surfaces are characterized in being metallurgically bonded to the base material of the shroud without significant dilution by the base material. This is accomplished by using transparent plasma arc welding at a low amperage and a low temperature. The wear resistant surface can be of a material different from the base material of the shroud proper.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: April 18, 1989
    Assignee: Metallurgical Industries, Inc.
    Inventors: Timothy A. Wertz, Gilbert A. Saltzman, Ira L. Friedman
  • Turbine blade with restored tip
    Patent number: 4808055
    Abstract: The worn tip of a turbine blade is restored by applying a metallurgically bonded wear resistant surface at the tip. The wear resistant surface is applied using a transferred plasma arc and powdered metal particles.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: February 28, 1989
    Assignee: Metallurgical Industries, Inc.
    Inventors: Timothy A. Wertz, Gilbert A. Saltzman, Ira L. Friedman