Patents by Inventor Bela J. Nemeth

Bela J. Nemeth 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).

  • Preferentially binder enriched cemented carbide bodies and method of manufacture
    Patent number: 4610931
    Abstract: Cemented carbide substrates having substantially A or B type porosity and a binder enriched layer near its surface are described. A refractory oxide, nitride, boride, and/or carbide coating is deposited on the binder enriched surface of the substrate. Binder enrichment is achieved by incorporating Group IVB or VB transition elements. These elements can be added as the metal, the metal hydride, nitride or carbonitride.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: September 9, 1986
    Assignee: Kennametal Inc.
    Inventors: Bela J. Nemeth, George P. Grab
  • Flowable composition adapted for sintering and method of making
    Patent number: 4491559
    Abstract: A flowable material, or slurry, comprising a liquid vehicle and solid particulate material dispersed therein which will flow out flat in the form of a sheet. The material, upon exposure to the atmosphere, and either with or without the application of heat, will set up in a dimensionally stable form and can, thereafter, be sintered to form a solid article. The fraction of the vehicle of the composition which remains after the solvent evaporates, vaporizes during sintering and the final product consists only of the particulate material in sintered form.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: January 1, 1985
    Assignee: Kennametal Inc.
    Inventors: George P. Grab, Grant W. Hood, Jr., Sigurd A. Swanson, Bela J. Nemeth
  • Flowable composition adapted for sintering and method of making
    Patent number: 4249955
    Abstract: A flowable material, or slurry, comprising a liquid vehicle and solid particulate material dispersed therein which will flow out flat in the form of a sheet. The material, upon exposure to the atmosphere, and either with or without the application of heat, will set up in a dimensionally stable form and can, thereafter, be sintered to form a solid article. The fraction of the vehicle of the composition which remains after the solvent evaporates, vaporizes during sintering and the final product consists only of the particulate material in sintered form.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: February 10, 1981
    Assignee: Kennametal Inc.
    Inventors: George P. Grab, Grant W. Hood, Jr., Sigurd A. Swanson, Bela J. Nemeth
  • Preferentially binder enriched cemented carbide bodies and method of manufacture
    Patent number: RE34180
    Abstract: Cemented carbide substrates having substantially A or B type porosity and a binder enriched layer near its surface are described. A refractory oxide, nitride, boride, and/or carbide coating is deposited on the binder enriched surface of the substrate. Binder enrichment is achieved by incorporating Group IVB or VB transition elements. These elements can be added as the metal, the metal hydride, nitride or carbonitride.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: February 16, 1993
    Assignee: Kennametal Inc.
    Inventors: Bela J. Nemeth, deceased, George P. Grab