Patents by Inventor Sidney Luk

Sidney Luk 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 making a sintered metal component and metal powder compositions therefor
    Patent number: 5484469
    Abstract: Methods of making sintered parts from a metal powder composition that contains an amide lubricant are provided. The composition comprises an iron-based powder and a lubricant that is the reaction product of a monocarboxylic acid, a dicarboxylic acid, and a diamine. The composition is compacted in a die, preferably at an elevated temperature of up to about 370.degree. C., at conventional compaction pressures, and then sintered according to standard powder-metallurgical techniques.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: January 16, 1996
    Assignee: Hoeganaes Corporation
    Inventors: Howard G. Rutz, Sidney Luk
  • Method of making a sintered metal component
    Patent number: 5154881
    Abstract: Methods of making sintered parts from a metal powder composition that contains an amide lubricant are provided. The composition comprises an iron-based powder and a lubricant that is the reaction product of a monocarboxylic acid, a dicarboxylic acid, and a diamine. The composition is compacted in a die, preferably at an elevated temperature of up to about 370.degree. C., at conventional compaction pressures, and then sintered according to standard powder-metallurgical techniques.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: October 13, 1992
    Assignee: Hoeganaes Corporation
    Inventors: Howard G. Rutz, Sidney Luk