Patents by Inventor Manfred Kapfer

Manfred Kapfer 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).

  • Injection moulding process
    Patent number: 6811730
    Abstract: An injection assembly for an injection moulding machine, comprising a screw (2) mounted in a plasticising cylinder and an injection piston (8) which moves the screw (2) in the longitudinal direction and which is mounted in an injection cylinder, wherein there is provided a supply conduit for the injection cylinder having a control valve (13) which can be shut off and there is provided an additional conduit (14) which by-passes the control valve (13) and in which are arranged a device (17) for reducing the amount of the pressure fluid flowing to the injection cylinder (7) and possibly a device (16) for reducing the pressure.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: November 2, 2004
    Assignee: Engel Maschinenbau Gesellschaft m.b.H.
    Inventors: Herbert Gruber, Johann Voggeneder, Manfred Kapfer
  • Injection moulding process
    Publication number: 20020056935
    Abstract: An injection assembly for an injection moulding machine, comprising a screw (2) mounted in a plasticising cylinder and an injection piston (8) which moves the screw (2) in the longitudinal direction and which is mounted in an injection cylinder, wherein there is provided a supply conduit for the injection cylinder having a control valve (13) which can be shut off and there is provided an additional conduit (14) which bypasses the control valve (13) and in which are arranged a device (17) for reducing the amount of the pressure fluid flowing to the injection cylinder (7) and possibly a device (16) for reducing the pressure.
    Type: Application
    Filed: November 14, 2001
    Publication date: May 16, 2002
    Inventors: Herbert Gruber, Johann Voggeneder, Manfred Kapfer