Patents by Inventor Helmut Naderhirn

Helmut Naderhirn 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).

  • Patent number: 7261539
    Abstract: Injection molding machine with a mold that can be opened and closed, into the mold cavity of which a fluid molding compound, preferably plastic, can be injected, and with at least one reading device (12) for at least one transponder (13) arranged in the mold cavity (4).
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: August 28, 2007
    Assignee: Engel Austria GmbH
    Inventors: Walther Pitscheneder, Helmut Naderhirn
  • Patent number: 7001169
    Abstract: An injection moulding machine with a vertically movable mould-clamping plate, an electrical drive motor for the movable mould-clamping plate. A control unit for the drive motor, a machine control unit and a safety device to prevent unintentional movement of the movable mould-clamping plate are also provided. The machine control unit activates the retaining device when a movement of the movable mould-clamping plate is indicated without a corresponding drive signal.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: February 21, 2006
    Assignee: Engel Maschinenbau Gesellschaft m.b.H.
    Inventors: Helmut Naderhirn, Herbert Gruber
  • Publication number: 20050053687
    Abstract: Injection molding machine with a mold that can be opened end closed via a closure device and with an injection unit for the introduction of a liquid molding compound into the closed mold, and with at least one replaceable component, the replaceable component (2, 3, 9, 15, 15b, 17) being provided with at least one transponder (7) which can be read out in contactless manner by means of a reading device (8).
    Type: Application
    Filed: September 8, 2004
    Publication date: March 10, 2005
    Inventors: Walther Pitscheneder, Helmut Naderhirn
  • Publication number: 20050053684
    Abstract: Injection molding machine with a mold that can be opened and closed, into the mold cavity of which a fluid molding compound, preferably plastic, can be injected, and with at least one reading device (12) for at least one transponder (13) arranged in the mold cavity (4).
    Type: Application
    Filed: September 8, 2004
    Publication date: March 10, 2005
    Inventors: Walther Pitscheneder, Helmut Naderhirn
  • Publication number: 20020192324
    Abstract: An injection moulding machine with a vertically movable mould-clamping plate, an electrical drive motor for the movable mould-clamping plate. A control unit for the drive motor, a machine control unit and a safety device to prevent unintentional movement of the movable mould-clamping plate are also provided. The machine control unit activates the retaining device when a movement of the movable mould-clamping plate is indicated without a corresponding drive signal.
    Type: Application
    Filed: May 1, 2002
    Publication date: December 19, 2002
    Inventors: Helmut Naderhirn, Herbert Gruber
  • Patent number: 5888560
    Abstract: An injection molding machine has a C-shaped machine frame with stationary die platen mounted on one limb and a closure mechanism mounted on the other for driving a movable die platen. The free ends of the machine frame limbs, whose ends are not connected by spars, deform under the influence of a closure force occurring during a closure process. Disposed between the stationary die platen and/or the closure mechanism, and the machine frame is at least one retaining part which deforms rather than pivoting, when the closure force is applied. The stationary die platen or the closure mechanism is thus tilted relative to the machine frame.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: March 30, 1999
    Assignee: Engel Maschinenbau Gesellschaft M.B.H.
    Inventor: Helmut Naderhirn
  • Patent number: 5556656
    Abstract: An injection moulding machine has a framework (1), a fixed and a movable die platen (2, 8) and at least a piston-cylinder unit of a cylinder platen (3) that bears a hydraulic or electromechanical closure mechanism. The cylinder platen (3) and the fixed die platen (2) are interconnected only by the framework (1). The closure force exerted during injection moulding and the vertical thrust between the cylinder platen (3) and the die platen (2) are transmitted only through the framework (1). The intersection between the longitudinal center axis (LSK) of the closing die (5) and the longitudinal center axis (LBF) of the die platen (8) lies at the back of the movable die platen (8) and the point at which the force of the closing die (5) is transmitted to the movable die platen (8) is vertically displaceable in relation to the die platen (8).
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: September 17, 1996
    Assignee: Engel Maschinenbau Gesellschaft GmbH
    Inventors: Alfred Lampl, Heinz Leonhartsberger, Otto Urbanek, Gerhard Wimbauer, Helmut Naderhirn
  • Patent number: 5249951
    Abstract: In an injection molding machine having a machine frame, a stationary mold mounting plate, a movable mold mounting plate and a support portion on the machine frame, which carries a mold closing mechanism, the support portion and the stationary mold mounting plate are connected exclusively by way of the machine frame. The closing force which occurs during the closing phase and the expansion force which occurs during injection, as between the support portion and the stationary mold mounting plate, are carried only by way of the machine frame. The mold mounting plates are mounted tiltably about a respective horizontal axis while a guide means is provided between the two mold mounting plates or the movable mold mounting plate and the machine frame.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: October 5, 1993
    Assignee: Engel Maschinenbau Gesellschaft m.b.H.
    Inventors: Heinz Leonhartsberger, Helmut Naderhirn, Werner Kappelmuller, Otto Urbanek
  • Patent number: RE35783
    Abstract: In an injection molding machine having a machine frame, a stationary mold mounting plate, a movable mold mounting plate and a support portion on the machine frame, which carries a mold closing mechanism, the support portion and the stationary mold mounting plate are connected exclusively by way of the machine frame. The closing force which occurs during the closing phase and the expansion force which occurs during injection, as between the support portion and the stationary mold mounting plate, are carried only by way of the machine frame. The mold mounting plates are mounted tiltably about a respective horizontal axis while a guide means is provided between the two mold mounting plates or the movable mold mounting plate and the machine frame.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: May 5, 1998
    Assignee: Engel Maschinenbau Gesellschaft m.b.H.
    Inventors: Heinz Leonhartsberger, Helmut Naderhirn, Werner Kappelmuller, Otto Urbanek