Patents Assigned to Copromec S.R.L.
  • Piston for cold chamber die-casting machine
    Patent number: 7900552
    Abstract: The object of the present invention is a piston for cold chamber die-casting machines comprising a body and at least one sealing band mounted around said body, wherein said body and said band are provided with coupling means suitable for concurrently obtaining both an angular locking and an axial locking of the band to the piston body.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: March 8, 2011
    Assignee: Copromec S.r.l.
    Inventors: Carlo Schivalocchi, Chiara Schivalocchi
  • Piston For Cold Chamber Die-Casting Machine
    Publication number: 20090071326
    Abstract: The object of the present invention is a piston for cold chamber die-casting machines comprising a body and at least one sealing band mounted around said body, wherein said body and said band are provided with coupling means suitable for concurrently obtaining both an angular locking and an axial locking of the band to the piston body.
    Type: Application
    Filed: October 6, 2008
    Publication date: March 19, 2009
    Applicant: COPROMEC S.r.l.
    Inventors: Carlo Schivalocchi, Chiara Schivalocchi
  • Cold chamber die-casting piston
    Patent number: 6745820
    Abstract: The finding relates to a piston for cold chamber die-casting machines that comprises a steel body and at least one sealing band in copper alloy mounted around the body into a respective housing in back position with respect to the piston head. At least two channels are provided on the outside surface of the piston comprised between head and sealing band, for an inflow on the melted metal under the same band. When such metal solidifies, it creates a thickness that radially pushes the band outwards, thus compensating for its wear.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: June 8, 2004
    Assignee: Copromec S.R.L.
    Inventor: Carlo Schivalocchi