Patents by Inventor Wolfgang Bucar

Wolfgang Bucar 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).

  • Al2O3 and ZrO2 based abrasive grain, method for the production and use thereof
    Publication number: 20060272221
    Abstract: An Al2O3 and ZrO2 based abrasive grain containing titanium compounds in a reduced form, especially in the form of oxides and/or suboxides and/or carbides and/or oxycarbides and/or oxycarbonitrides and/or silicides, corresponding to a proportion of 0.510 wt %, expressed as TiO2, containing 20-50 wt % ZrO2, wherein more than 75 wt. % of the ZrO2 is present in a tetragonal crystal form, having an overall carbon content of 0.03-0.5 wt. %, a proportion of impurities caused by raw materials of less than 3.0 wt %, wherein the rare earth content calculated in the form of oxides is less than 0.1 wt %, having an Si-compound content of 0.05-1.0 wt %, expressed as SiO2, and an Al2O3 content of 50-80 wt.
    Type: Application
    Filed: August 17, 2006
    Publication date: December 7, 2006
    Applicant: TREIBACHER SCHLEIFMITTEL GmbH
    Inventors: Alessandro Dazza, Hans Zeiringer, Wolfgang Bucar, Paul Moeltgen
  • AIOand ZrObased abrasive grain, method for the production and use thereof
    Patent number: 7122064
    Abstract: An Al2O3 and ZrO2 based abrasive grain containing titanium compounds in a reduced form, especially in the form of oxides and/or suboxides and/or carbides and/or oxycarbides and/or oxycarbonitrides and/or suicides, corresponding to a proportion of 0.510 wt. %, expressed as TiO2, containing 20–50 wt. % ZrO2, wherein more than 75 wt. % of the ZrO2 is present in a tetragonal crystal form, having an overall carbon content of 0.03–0.5 wt. %, a proportion of impurities caused by raw materials of less than 3.0 wt. %, wherein the rare earth content calculated in the form of oxides is less than 0.1 wt. %, having an Si-compound content of 0.05–1.0 wt. %, expressed as SiO2, and an Al2O3 content of 50–80 wt.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: October 17, 2006
    Assignee: Treibacher Schleifmittel GmbH
    Inventors: Alessandro Dazza, Hans Zeiringer, Wolfgang Bucar, Paul Moeltgen
  • Al203 and zro2 based abrasive grain, method for the production and use thereof
    Publication number: 20050022455
    Abstract: An Al2O3 and ZrO2 based abrasive grain containing titanium compounds in a reduced form, especially in the form of oxides and/or suboxides and/or carbides and/or oxycarbides and/or oxycarbonitrides and/or suicides, corresponding to a proportion of 0.510 wt. %, expressed as TiO2, containing 20-50 wt. % ZrO2, wherein more than 75 wt. % of the ZrO2 is present in a tetragonal crystal form, having an overall carbon content of 0.03-0.5 wt. %, a proportion of impurities caused by raw materials of less than 3.0 wt. %, wherein the rare earth content calculated in the form of oxides is less than 0.1 wt. %, having an Si-compound content of 0.05-1.0 wt. %, expressed as SiO2, and an Al2O3 content of 50-80 wt.
    Type: Application
    Filed: November 29, 2001
    Publication date: February 3, 2005
    Inventors: Alessandro Dazza, Hans Zeiringer, Wolfgang Bucar, Paul Moeltgen
  • Hard material titanium carbide based alloy, method for the production and use thereof
    Patent number: 6395045
    Abstract: The present invention relates to a method for producing an abrasive grain from a hard-material alloy based on titanium carbide, with alloying contributions from the group of carbides, nitrides, and/or borides from the secondary groups IVb, Vb, and VIb of the periodic system.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: May 28, 2002
    Assignee: Treibacher Schleifmittel AG
    Inventors: Wolfgang Bucar, Hans Zeiringer