Patents by Inventor Carlos Furquim Heraldo

Carlos Furquim Heraldo 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, production line, and piston blank used for the production of a monolithic piston for combustion engines, and piston for combustion engines
    Patent number: 8572843
    Abstract: A method and a manufacturing line allow for the manufacture of piston blanks of dimensions close to the final dimensions, which in the course of subsequent finish-machining need only be machined with removal of material to a small degree. A piston shaft of the piston blank is produced by backward extrusion. At least one hollow throat element is already produced at the piston blank by an upset-forging operation. For this purpose, a special forging tool is provided, which, after the manufacture of the piston shaft, takes effect on the piston blank in such a way that at least one hollow throat element is formed at the latest at subsequent forming of the piston base. In this way, a perceptible reduction is achieved in the weight of a piston in relation to conventionally manufactured forging pistons.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: November 5, 2013
    Assignee: ThyssenKrupp Metalurgica Campo Limpo Ltda.
    Inventors: Carlos Furquim Heraldo, Joao Lester Garcia
  • Method, production line, and piston blank used for the production of a monolithic piston for combustion engines, and piston for combustion engines
    Publication number: 20090013531
    Abstract: A method and a manufacturing line allow for the manufacture of piston blanks of dimensions close to the final dimensions, which in the course of subsequent finish-machining need only be machined with removal of material to a small degree. A piston shaft of the piston blank is produced by backward extrusion. At least one hollow throat element is already produced at the piston blank by an upset-forging operation. For this purpose, a special forging tool is provided, which, after the manufacture of the piston shaft, takes effect on the piston blank in such a way that at least one hollow throat element is formed at the latest at subsequent forming of the piston base. In this way, a perceptible reduction is achieved in the weight of a piston in relation to conventionally manufactured forging pistons.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 15, 2009
    Applicant: ThyssenKrupp Metalurgica Campo Limpo Ltda.
    Inventors: Carlos Furquim Heraldo, Joao Lester Garcia