Patents by Inventor Rudolf Leib

Rudolf Leib 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: 8850983
    Abstract: A production unit for a printing material processing machine includes a drive, a computer, a cylinder and an associated impression cylinder having a circumference different from that of the cylinder. Provision is made to detect an increase in drive torque on the cylinder and to calculate therefrom a differential angle of rotation varying at least over one revolution between the cylinder and the impression cylinder in the computer, to be used to actuate the drive of the cylinder. A printing press having at least one production unit is also provided.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: October 7, 2014
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rudolf Leib, Josef Winkelmann, Ralf Würdinger
  • Publication number: 20120152134
    Abstract: A production unit for a printing material processing machine includes a drive, a computer, a cylinder and an associated impression cylinder having a circumference different from that of the cylinder. Provision is made to detect an increase in drive torque on the cylinder and to calculate therefrom a differential angle of rotation varying at least over one revolution between the cylinder and the impression cylinder in the computer, to be used to actuate the drive of the cylinder. A printing press having at least one production unit is also provided.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 21, 2012
    Applicant: HEIDELBERGER DRUCKMASCHINEN AG
    Inventors: RUDOLF LEIB, JOSEF WINKELMANN, RALF WÜRDINGER
  • Publication number: 20050087086
    Abstract: A sheet-fed printing press contains a dryer that is oriented at a cylinder and has a concave contour that is adapted to the cylinder. The dryer is subdivided into a blower part and an air guiding part. The concave contour is formed on the air guiding part and the blower part is mounted so as to be displaceable relative to the air guiding part.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 28, 2005
    Inventors: Jochen Jung, Rudolf Leib, Alexander Weber
  • Patent number: 6684774
    Abstract: A sheet-fed rotary printing press has at least one unit which includes an impression cylinder and an additional cylinder assigned to the impression cylinder. The impression cylinder and the additional cylinder are relatively adjustable a spaced distance from one another. A sheet guiding device is disposed on the additional cylinder for keeping sheets of printing material, which have been transported by the impression cylinder past the additional cylinder, away from the additional cylinder, once the spaced distance between the impression cylinder and the additional cylinder has been set.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: February 3, 2004
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Ralf Wadlinger, Rudolf Leib, Günter Stephan
  • Publication number: 20030205153
    Abstract: A sheet-fed rotary printing press has at least one unit which includes an impression cylinder and an additional cylinder assigned to the impression cylinder. The impression cylinder and the additional cylinder are relatively adjustable a spaced distance from one another. A sheet guiding device is disposed on the additional cylinder for keeping sheets of printing material, which have been transported by the impression cylinder past the additional cylinder, away from the additional cylinder, once the spaced distance between the impression cylinder and the additional cylinder has been set.
    Type: Application
    Filed: May 21, 2001
    Publication date: November 6, 2003
    Applicant: Heidelberger Druckmaschinen AG
    Inventors: Ralf Wadlinger, Rudolf Leib, Gunter Stephan
  • Patent number: 6490974
    Abstract: A sheet-guiding device has a sheet-guiding element for a sheet-fed printing machine having an impression cylinder and a further cylinder adjacent thereto, the sheet-guiding element being disposed for guiding a sheet transported by the impression cylinder when the further cylinder is set-off from the impression cylinder. The further cylinder includes a cylinder selected from the group thereof consisting of an applicator cylinder for applying ink or varnish, respectively, to a sheet lying on the impression cylinder, and a tool cylinder for applying a finishing step to a sheet lying on the impression cylinder. The sheet-guiding element is disposed separately from the further cylinder and covers an impression zone of the impression cylinder.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: December 10, 2002
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Ralf Wadlinger, Werner König, Rudolf Leib, Günter Stephan
  • Patent number: 6308620
    Abstract: A sheet-fed rotary printing press having at least one unit including an impression cylinder and an additional cylinder assigned to the impression cylinder, the impression cylinder and the additional cylinder being relatively adjustable a spaced distance from one another, includes a sheet guiding device disposed on the additional cylinder for keeping sheets of printing material, which have been transported by the impression cylinder past the additional cylinder, away from the additional cylinder, once the spaced distance between the impression cylinder and the additional cylinder has been set.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: October 30, 2001
    Assignee: Heidelberger Druckmaschinen
    Inventors: Ralf Wadlinger, Rudolf Leib, Günter Stephan
  • Patent number: 6286425
    Abstract: A sheet-fed rotary printing machine has a plurality of units arranged in tandem, at least one of the units including a first cylinder for transporting a sheet and a second cylinder disposed opposite the first cylinder, the first cylinder and the second cylinder being mounted so as to be disengageable from one another; the second cylinder being stoppable and having a device by which an outer portion of the second cylinder is displaceable; and a method of transporting a sheet through a unit of the printing machine.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: September 11, 2001
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rudolf Leib, Günter Stephan
  • Patent number: 6000336
    Abstract: A device for applying a liquid to a print carrier sheet in a sheet-fed rotary printing machine. The device has an applicator cylinder, an impression cylinder assigned to the latter and at least one gripper. The applicator cylinder carries a cylinder sleeve which applies the liquid to the print carrier and which has at least one recess, into which the gripper penetrates when the applicator cylinder and the impression cylinder roll one on the other.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: December 14, 1999
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventor: Rudolf Leib
  • Patent number: 5503674
    Abstract: Device for processing a viscous fluid for finishing printing products in a finishing unit of a rotary printing press, the finishing unit having a plurality of rollers suppliable with the fluid at least at one feeding location thereof, and a plurality of cylinders suppliable with the fluid by the plurality of rollers, includes a device for collecting the fluid from the one feeding location thereof, the plurality of rollers including a metering roller engageable with one of the cylinders for feeding the fluid thereto, another roller of the plurality of rollers being in cooperative engagement with the metering roller and with the collecting device for feeding the fluid to the metering roller.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: April 2, 1996
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventors: Gunther Hofmann, Rudolf Leib
  • Patent number: 5385342
    Abstract: A sheet feeder, provided at a printing machine, has continuously conveying transport tapes to which transport rollers are engaged. The transport tapes and the transport rollers convey overlappingly fed sheets to a front guide, wherein the last transport rollers, provided upstream of the front guide, are adjustable with respect to the sheet format being processed. There are also additional driving rollers which may be pivoted into contact with the transport tapes in order to process minimum size sheet formats.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: January 31, 1995
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventor: Rudolf Leib