Patents by Inventor Leo Chuzhoy

Leo Chuzhoy 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 improving mechanical properties of gray iron
    Patent number: 7686895
    Abstract: A method of forming gray iron components includes applying a substantially uniform magnetic field to gray iron. The method also includes heat-treating the gray iron while the gray iron is within the magnetic field.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: March 30, 2010
    Assignee: Caterpillar Inc.
    Inventors: Ashwin A. Hattiangadi, Adrian Vasile Catalina, Leo Chuzhoy, Jun Cai
  • Method of improving mechanical properties of gray iron
    Publication number: 20080178971
    Abstract: A method of forming gray iron components includes applying a substantially uniform magnetic field to gray iron. The method also includes heat-treating the gray iron while the gray iron is within the magnetic field.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventors: Ashwin A. Hattiangadi, Adrian Vasile Catalina, Leo Chuzhoy, Jun Cai
  • Construction for a rollover protection structure
    Patent number: 5280955
    Abstract: The present invention provides a rollover protection structure that utilizes unitary corner members that are cast pieces that require no additional bracing. In addition, each corner member includes a leg portion that integrally defines an area of reduced cross-section. This reduction in cross-section creates an area of predictable deformation in the structure which will prevent the structure from collapsing on an operator stationed within the cab.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: January 25, 1994
    Assignee: Caterpillar Inc.
    Inventors: Peter M. Nelson, Leo Chuzhoy, Anthony F. Cieszkiewicz, Steven D. Jones, David E. Nelson