Patents by Inventor Valeri B. Petrov

Valeri B. Petrov 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).

  • Piston formed by powder metallurgical methods
    Patent number: 6973723
    Abstract: A piston includes a piston structure being unitarily formed in a powder metallurgy process, the piston structure having a crown assembly and a skirt assembly, at least a partial combustion chamber being formed intersecting a piston crown surface during the powder metallurgy process, the skirt assembly depending from the crown assembly and having two spaced apart pin bosses, each pin boss having a pin bore defined therein, a pair of opposed semi-circular skirt members, each skirt member extending outwardly from and being integrally joined to both of the pin bosses. The piston may be formed by executing a powder metallurgy process on at least two different metallic constituents to define a non-homogenous piston structure. A method of forming a piston is further included.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: December 13, 2005
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: John L. Cagney, Valeri B. Petrov
  • Piston formed by powder metallurgical methods
    Publication number: 20040129134
    Abstract: A piston includes a piston structure being unitarily formed in a powder metallurgy process, the piston structure having a crown assembly and a skirt assembly, at least a partial combustion chamber being formed intersecting a piston crown surface during the powder metallurgy process, the skirt assembly depending from the crown assembly and having two spaced apart pin bosses, each pin boss having a pin bore defined therein, a pair of opposed semi-circular skirt members, each skirt member extending outwardly from and being integrally joined to both of the pin bosses. The piston may be formed by executing a powder metallurgy process on at least two different metallic constituents to define a non-homogenous piston structure. A method of forming a piston is further included.
    Type: Application
    Filed: January 8, 2003
    Publication date: July 8, 2004
    Inventors: John L. Cagney, Valeri B. Petrov