Patents by Inventor Erich M. Zahn

Erich M. Zahn 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: 5529456
    Abstract: A device for uniting a residue sheet pile and a main sheet pile into an aggregate sheet pile wherein a lowermost sheet of the residue sheet pile rests upon and uppermost sheet of the main sheet pile includes a displacement device having a drive; and a rake displaceable by the displacement device along a displacement path in a pile slide-in direction from a first to a second position and from the second to the first position in a direction opposite to the slide-in direction. The residue sheet pile is seated with its undermost sheet on the rake in the second position thereof, and the main sheet pile is in engagement with the rake from below with the uppermost sheet thereof, in one phase of the pile uniting process. The rake has traversed the displacement path in the direction from the second to the first position thereof, in a final phase of the pile uniting process.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: June 25, 1996
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Heiner Luxem, Michael Nubel, Gerhard Pollich, Erich M. Zahn
  • Patent number: 5338020
    Abstract: A device for aligning a sheet pile in a sheet feeder of a sheet processing machine feedable with sheets therefrom having a front stop provided for a first lateral face of the sheet pile facing towards the machine includes a horizontal stop rail coordinated with a second lateral face of the sheet pile located on a side of the sheet pile opposite to the first lateral face thereof, the stop rail being formed with a directive surface disposed directly opposite the second lateral face of the sheet pile, an automatic adjusting device for pressing the directive surface against the second lateral face of the sheet pile under action of a directive force, and a positioning device for setting the stop rail at selective levels.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: August 16, 1994
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Bruno Eltner, Erich M. Zahn
  • Patent number: 5303911
    Abstract: A device for uniting a residual and a main pile of sheets in a pile zone of a sheet feeder to form an aggregate pile wherein an uppermost sheet of the main pile has been brought into contact with a lowermost sheet of the residual pile, includes a rake for underpinning and carrying the residual pile during given phases of a process for uniting the piles, the rake having mutually parallel, horizontal lattice bars. Also included are a displacement device for carrying and displacing the rake, horizontally in longitudinal direction of the lattice bars between a first position outside the pile zone and a second position inside the pile zone, wherein the residual pile is underpinned by the rake, a device disposed in the pile zone for supporting respective ends of the lattice bars projecting beyond the residual pile, and a lifting device carrying the displacement device for lowering the rake into a lower position and for raising the rake into an upper position.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: April 19, 1994
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Erich M. Zahn, Gerhard Pollich
  • Patent number: 5242261
    Abstract: A device for uniting residual sheet pile and a main sheet pile into an aggregate pile, wherein a lowermost sheet of the residual sheet pile rests on an uppermost sheet of the main sheet pile, includes a pile-carrying plate having a horizontally oriented upper side whereon the residual sheet pile rests with its lowermost sheet prior to a performance of a pile uniting process, the pile-carrying plate having mutually parallel grooves formed on the upper side thereof, an auxiliary carrying device for temporarily carrying the residual sheet pile including an assembly of horizontally disposed and mutually parallel lattice bars fitting into respective cross sections of the grooves formed in said pile-carrying plate and combined into a rake, guide rails whereon said rake is mounted so as to be displaceable in the longitudinal direction of the lattice bars, a stop rail extending transversely to and being displaceable in the longitudinal direction of the lattice bars, the stop rail being formed with penetrations throug
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: September 7, 1993
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Gerhard Pollich, Erich M. Zahn, Heiner Luxem, Michael Nubel