Patents by Inventor Airton Aparecido Chignolli

Airton Aparecido Chignolli 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 manufacturing pistons and components thereof, and forging tools
    Patent number: 7213337
    Abstract: A method of manufacturing an entire piston, piston heads for example, especially intended for internal-combustion engines, wherein in an initial manufacturing step a blank that will eventually constitute the piston is preliminarily forged along a prescribed axis, shaping appropriate contours, and wherein in at least one subsequent manufacturing step the preliminarily shaped piston is finally forged along at least one other axis, creating additional contours.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: May 8, 2007
    Assignee: ThyssenKrupp Automotive AG
    Inventors: Antônio José de Araújo Pôrto, Joao Lester Garcia Lopes, Airton Aparecido Chignolli