Patents Assigned to KBA Planeta AG
  • Patent number: 6142075
    Abstract: The invention relates to a method for exact pile formation in printing press deliveries, which comprises printing, or printing and coating sheets in a printing press, transporting the printed or printed and coated sheets to a sheet delivery pile, releasing the sheets above the delivery pile, compacting the delivery pile by applying mechanical or pneumatic pressure thereonto, and removing the thus compacted delivery pile, and to apparatus for carrying out the foregoing method.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: November 7, 2000
    Assignee: KBA-Planeta AG
    Inventors: Michael Koch, Volker Taschenberger, Hans Zimmermann
  • Patent number: 5937755
    Abstract: The present invention is an apparatus for setting printing pressure in an offset printing press having an impression cylinder, an eccentrically journaled blanket cylinder, and an eccentrically journaled plate cylinder, each of the cylinders and each of the eccentric journals having an axis, wherein the printing pressure is to be adjusted between the blanket cylinder and the impression cylinder, as well as between the blanket cylinder and the plate cylinder, wherein a bearer ring to bearer ring contact exists between the blanket cylinder and the plate cylinder, wherein the impression cylinder, the blanket cylinder and the plate cylinder are in a basic printing position in which the axis of the plate cylinder, the axis of the eccentric journal of the blanket cylinder are disposed on a first straight-line, and the axis of the blanket cylinder is disposed on a second straight-line intersecting with the first straight-line at the axis of the eccentric journal of the blanket cylinder, at an adjustment angle between
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: August 17, 1999
    Assignee: KBA-Planeta AG
    Inventors: Karl Preuss, Hans-Jurgen Zelfel
  • Patent number: 5927205
    Abstract: An apparatus for developing a cylindrical surface in a printing press that has a device for writing and/or imaging on a rotatable printing form cylinder, the cylinder having a silicon-containing operating surface, the apparatus comprising a rotatable cleaning roller, an elastic cover and a fabric blanket over the cleaning roller, the cleaning roller having an optionally wettable cleaning surface, means for rotating the cleaning roller synchronously with or in opposition to the rotation of the printing form cylinder, means for selectively establishing and breaking contact between the cleaning roller and the printing form cylinder, whereby silicon particles created on the operating surface during writing and/or imaging are removed by contact between the operating surface and the cleaning cylinder.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: July 27, 1999
    Assignee: KBA-Planeta AG
    Inventors: Arndt Jentzsch, Reinhard Nerger, Volker Kessler
  • Patent number: 5708332
    Abstract: A dual motor drive system particularly adapted for the drive of long printing presses provides uncoupled control of both the voltage and current provided to the motors. A current divider proportions the current provided to a main and secondary motor in accordance with a chosen ratio to maintain speed and torque in accordance with press requirements.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: January 13, 1998
    Assignee: KBA-Planeta AG
    Inventors: Johannes Bottger, Victor Hefftler, Arndt Jentzsch
  • Patent number: 5186106
    Abstract: An arrangement on transfer drums for in-registry sheet transfer in sheet rotary printing machines, has gripper units mounted on cylinders, toothed segments which during a sheet transfer are in engagement, each of the gripper units having a gripper shaft, a gripper and a turnable gripper traverse which receives the gripper shaft and said gripper and fixedly connected with one of the turnable toothed segments, and an elastic element associated with the toothed segment.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: February 16, 1993
    Assignee: KBA-Planeta AG
    Inventors: Karl-Heinz Fischer, Arndt Jentzsch
  • Patent number: 5142980
    Abstract: The pneumatic controller for detecting the presence or absence of sheets fed through a press machine includes a suction system having a suction duct in a sheet feed cylinder of the press machine and a vacuum pump connected to the suction duct, the suction duct opening onto a surface of the sheet feed cylinder on which one of the sheets contacts at least partially obstructing an air flow through the suction duct during normal press operation. To rapidly detect a sudden increase in the air flow through the suction duct caused by a missing sheet, the pneumatic controller is provided with a flow sensor (1) in the suction duct having a hot wire (16) and a surrounding protective jacket (15), and an analyzing circuit (2) connected to the flow sensor. The analyzing circuit (2) detects the temporary cooling of the hot wire (16) caused by the increase in the air flow rate and the analyzing circuit (2) detects the change of resistance of the wire and generates and amplified voltage output signal.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: September 1, 1992
    Assignee: KBA-Planeta AG
    Inventors: Johannes Bottger, Falk Buschmann
  • Patent number: 5134938
    Abstract: A sheet feeding unit for a rotary sheet printing machine which is operative for selective face printing or face and back printing with turning of a sheet rear edge and which has a turning cylinder and a printing cylinder located before the turning cylinder, includes elements located underneath the turning drum and the printing drum for conducting and guiding overlong sheets in face and back printing during a turning step on a front edge. The elements include a suction member arranged rotatably over a circular path so as to take over a sheet in a point of intersection of tangent t.sub.s, a stationary segment arch arranged equidistantly relative to the circular path under a point of intersection T.sub.4,5 of the printing cylinder and a sheet guiding cylinder and also provided with guiding rollers, and a guiding plate located above a turning point of the suction member at a distance from the printing cylinder and inside the circular path over a line of a secante.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: August 4, 1992
    Assignee: KBA Planeta AG
    Inventors: Winfried Busse, Gunter Peter, Otfried Rudolph, Arndt Jentzsch
  • Patent number: D396243
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: July 21, 1998
    Assignee: KBA-Planeta AG
    Inventors: Gili Briks, Karsten Grossmann, Yoseph Guy Hefetz