Patents by Inventor Frencesco Piraccini

Frencesco Piraccini 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).

  • METHODS OF MANUFACTURING TURBOMACHINES BLADES WITH SHAPED CHANNELS BY ADDITIVE MANUFACTURING, TURBOMACHINE BLADES AND TURBOMACHINES
    Publication number: 20140205454
    Abstract: A hollow blade for a turbomachine comprises an airfoil portion; the airfoil portion extends longitudinally for a length; the airfoil portion is defined laterally by an external surface; the airfoil portion has at least one internal cavity extending along said length and defined laterally by an internal surface; the airfoil portion has a set of channels extending from the external surface to the internal surface; the openings of said channels on said external surface are aligned along a curved line that reflects an isobar on said external surface.
    Type: Application
    Filed: December 13, 2013
    Publication date: July 24, 2014
    Applicant: Nuovo Pignone Srl
    Inventors: Iacopo Giovannetti, Lorenzo Cosi, Mirco Innocenti, Frencesco Piraccini, Pierluigi Tozzi
  • METHODS OF MANUFACTURING DIVIDED BLADES OF TURBOMACHINES BY ADDITIVE MANUFACTURING
    Publication number: 20140165398
    Abstract: The method is used for manufacturing a turbomachine blade that comprises an airfoil portion and is divided into two parts at an intermediate region of the airfoil portion; each of the two parts of the airfoil portion is obtained by additive manufacturing; the two parts are joined by brazing.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 19, 2014
    Applicant: Nuovo Pignone Srl
    Inventors: Iacopo Giovannetti, Lorenzo Cosi, Mirco Innocenti, Frencesco Piraccini, Pierluigi Tozzi