Patents by Inventor Moses A. Levinstein

Moses A. Levinstein 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).

  • Clearance control through a Ni-graphite/NiCr-base alloy powder mixture
    Patent number: 4039296
    Abstract: An improved abradable coating particularly useful to control clearances between relatively moving members in a sealing relationship includes a base portion and an abradable coating portion which is the fusion and interaction product of a mechanical mixture of a plurality of powdered materials comprising a nickel-graphite powder and a nickel-chromium-base alloy powder. One method for making such a seal member includes applying a strippable bond coat of predominantly nickel between a base portion of the member and a subsequently thermal deposited coating.
    Type: Grant
    Filed: December 12, 1975
    Date of Patent: August 2, 1977
    Assignee: General Electric Company
    Inventor: Moses A. Levinstein
  • Clearance control through a nickel-graphite/aluminum copper-base alloy powder mixture
    Patent number: 4023252
    Abstract: An improved abradable coating particularly useful to control clearances between relatively moving members in a sealing relationship includes a base portion and an abradable coating portion which is the fusion and interaction product of a mechanical mixture of a plurality of powdered materials comprising a nickel-graphite powder and an aluminum-copper base alloy powder.
    Type: Grant
    Filed: December 12, 1975
    Date of Patent: May 17, 1977
    Assignee: General Electric Company
    Inventors: Moses A. Levinstein, Edward J. Bauersfeld