Patents by Inventor Silvio Stephan

Silvio Stephan 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 and device for casting a piston for an internal combustion engine
    Patent number: 8720528
    Abstract: In a method for casting a piston for an internal combustion engine, after solidification of the surface layer in the region of the piston-pin bores (12), at least one mandrel provided there is withdrawn and the region of at least one piston-pin bore (12) is cooled by coolant supplied through at least one mandrel. A device for casting pistons for internal combustion engines has at least one mandrel which can be withdrawn from the region of a piston-pin bore (12) and through which a coolant for cooling the region of the piston-pin bores (12) can be supplied.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: May 13, 2014
    Assignee: Federal-Mogul Nurnberg GmbH
    Inventors: Silvio Stephan, Isabella Sobota, Rolf Pfeifer
  • METHOD AND DEVICE FOR CASTING A PISTON FOR AN INTERNAL COMBUSTION ENGINE
    Publication number: 20130092341
    Abstract: In a method for casting a piston for an internal combustion engine, after solidification of the surface layer in the region of the piston-pin bores (12), at least one mandrel provided there is withdrawn and the region of at least one piston-pin bore (12) is cooled by coolant supplied through at least one mandrel. A device for casting pistons for internal combustion engines has at least one mandrel which can be withdrawn from the region of a piston-pin bore (12) and through which a coolant for cooling the region of the piston-pin bores (12) can be supplied.
    Type: Application
    Filed: March 24, 2011
    Publication date: April 18, 2013
    Inventors: Silvio Stephan, Isabella Sobota, Rolf Pfeifer