Patents by Inventor Karol Kucharski

Karol Kucharski 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).

  • Lubricated die
    Patent number: 6365094
    Abstract: A toolset for forming a component from a powdered metal charge includes a die having two zones on the sidewall. Lubricant is applied to one of the zones. The powdered metal charge is initially compressed to an intermediate density and the lubricated zone of the sidewall brought into contact with the partially compressed charge. The charge is then further compressed to a final density.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: April 2, 2002
    Assignee: Stackpole Limited
    Inventors: Gerd Hinzmann, Karol Kucharski, Rohith Shivanath
  • Press and sinter process for high density components
    Patent number: 6346213
    Abstract: A process of forming a sintered article of powder metal comprising blending graphite, Si carbide and lubricant, with pre-alloyed iron base powder; pressing said blended mixture to a shaped article; sintering said article in a reduced atmosphere; forced cooling said sintered article.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: February 12, 2002
    Assignee: Stackpole Limited
    Inventors: Rohith Shivanath, Karol Kucharski, Peter Jones
  • Press and sinter process for high density components
    Patent number: 6019937
    Abstract: A process of forming a sintered article of powder metal comprising blending graphite, Si carbide and lubricant, with pre-alloyed iron base powder; pressing said blended mixture to a shaped article; sintering said article in a reduced atmosphere; forced cooling said sintered article.
    Type: Grant
    Filed: November 27, 1998
    Date of Patent: February 1, 2000
    Assignee: Stackpole Limited
    Inventors: Rohith Shivanath, Karol Kucharski, Peter Jones