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Heidelberger Druckmaschinen Patents
Assignee:
Heidelberger Druckmaschinen
Address:
Heidelberg, DE
No. of patents:
41
Patents:












Patent Number Title Of Patent Date Issued
7942096 Method of controlling a powder sprayer and printing press having a powder sprayer May 17, 2011
A method of controlling a powder sprayer having a fan jet nozzle configuration in a printing press, includes controlling the fan jet nozzle configuration as a function of operating parameters of the printing press. A printing press having a powder sprayer is also provided.
7484610 Apparatus for the actuation of clamping elements that can be controlled remotely February 3, 2009
In an apparatus for clamping and releasing a gearwheel rim with respect to a main gearwheel that bears the gearwheel rim, a clamping apparatus includes an axially guided, displaceable clamping plate clamping the gearwheel rim between the plate and the main gearwheel. Antifatigue bolts
6647849 Device for varying a cylinder's effective diameter November 18, 2003
The present invention is related to a device for varying a cylinder's effective diameter. It includes a shell member being removably mounted on a surface of a cylinder. On the easy exchangeable shell member having a base plate an elastic material is provided allowing for a compressible
6450053 Device for ensuring correct tooth engagement during coupling of two gearwheels September 17, 2002
A device for ensuring correct tooth engagement during coupling of an adjustable, first gearwheel to a second gearwheel of a printing-material processing machine, includes a first adjustment device for adjusting the first gearwheel in a direction towards the second gearwheel during co
6430385 Wick roller assembly for an electrophotographic machine August 6, 2002
An electrophotographic apparatus having a wick roller assembly and a method for servicing. The wick roller assembly is rotatably mounted to the fuser section of the apparatus and is releasably latched thereto whereby the fuser roller in the assembly can be quickly and easily accessed for
6416051 Sheet guiding device and method of production July 9, 2002
A sheet guiding device having a top plate formed with a smooth side facing towards sheets to be guided past the device, includes at least one depression defining at least one connecting region, the at least one depression being formed in the top plate from the smooth side thereof, and
6361041 Air cushion guide for sheet or web-formed material March 26, 2002
An air cushion guide for sheet or web-formed material that includes at least one guide member having a chamber and a surface formed with nozzle openings that may communicate with the chamber, through which air is blown between the guide member and the guided material for supporting the g
6360663 Imaging device and method for forming an image on a printing form for an offset printing press March 26, 2002
An imaging device for forming an image on a printing form, includes an imaging head containing a multiplicity of mutually parallel conductive pins separated from one another by an insulating material, a voltage source for a high-frequency alternating voltage, and a multiplicity of el
6360640 Variable velocity cutting cylinders March 26, 2002
A ribbon is cut into signatures with a cutting cylinder having a fixed diameter and rotating at a variable angular velocity. During the cutting operation, the cutting cylinder rotates at an angular cutting velocity that is substantially equal to the constant velocity of the ribbon. The
6349936 Device for measuring the height of a sheet pile by using a reflectively operating radiation dete February 26, 2002
A device for measuring the height of a sheet pile by using a reflectively operating radiation detector, a sheet separating device and a device for conveying separated sheets to a printing machine being assigned to the pile, comprising a system for measuring the propagation time of a
6349645 Ink fountain in a printing machine and method of fixing an ink fountain foil in an ink fountain February 26, 2002
An ink fountain in a printing machine with an ink fountain foil lying on a base of the ink fountain includes an ink metering device having a plurality of metering elements covered by the ink fountain foil, and a device for firmly holding directly on the base of the ink fountain, an u
6349643 Method and device for influencing ink-trapping behavior February 26, 2002
Method of influencing ink-trapping behavior of ink-conducting components of a printing unit in a rotary printing press includes disconnecting at a clutch location an inking-unit drive coming from printing-unit cylinders, directly imaging a printing form on a printing-form cylinder within
6316765 Device for detecting the position of rotating objects November 13, 2001
A device for detecting the position of rotating objects, having an optical signal transmitter and an optical sensor, includes a stationary light source provided in the optical signal transmitter for generating along an optical axis a light beam directed onto a rotating object, the optica
6308620 Printing press having a multiply-positioned and multi-functioned sheet guiding cylinder October 30, 2001
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
6280373 Cutting tool support August 28, 2001
In a device for cutting a web of material in a folder having a cutting tool accommodated on a cutting cylinder, there is provided a cutting tool support which includes pressure bars of elastic material flanking and directly engaging the cutting tool, and projecting resiliently beyond a
6213457 Apparatus and method for feeding sheet material magazines April 10, 2001
An apparatus for feeding flat products from a pile of flat products to a receiving location especially on a conveyor includes a plurality of delivering units for extracting a single flat product from the pile. Each of the delivering units has a first driven belt and is engageable with a
5992845 Sheet-guiding device with a cooled sheet-guiding plate November 30, 1999
A sheet-guiding device with a cooled sheet-guiding plate formed with air outlet openings, the sheet-guiding plate having a sheet-guiding surface on one side thereof and being connected, at the other side thereof opposite to the one side, to coolant ducts permitting the air outlet opening
5975280 Device for transporting flat products to further processing units or delivery stations November 2, 1999
A device for transporting flat products to further processing units is provided which includes a track 4 forming a continuous loop, a plurality of gripper elements 1 and a driving module 99. The gripper elements 1 are arranged on the track 4, and include a gripper 2 for seizing a flat
5974975 Cleaning device for cylinders of printing presses November 2, 1999
A cleaning device for cylinders of printing presses, having at least one wash roll engageable with and disengageable from the cylinders, the wash roll being formed as a brush roll and being sprayable with cleaning fluid, includes straight bristles and wavy bristles arrayed on the brush r
5957049 Method controlling ink application in a printing press September 28, 1999
In order to control ink application in a printing press, a sheet (3) printed by the printing press (1) is colorimetrically measured in a number of pixels (4) with respect to a selected color coordinate system that has been expanded to be four-dimensional by also taking into account an
5927196 Post chill dancer roll July 27, 1999
A device for controlling the tension in a web of a printing press includes an adjustably positionable dancer roll coupled to an air cylinder. The dancer roll engages the web at a position subsequent to the chill exit nip rolls and prior to a next nip roll pair, e.g., the slitter unit ent
5894795 Apparatus and method for preventing condensation in machines processing a web of material April 20, 1999
An apparatus and method for preventing condensation in a selected area of a printing press, for example a dampener system, by, for example, controlling the air temperature surrounding the dampener system by cooling, heating or changing the humidity of the air such that the temperatur
5613675 Method and device for conveying sheets in a feeder region of a sheet-processing machine March 25, 1997
Device for conveying single sheets or a shingled sheet stream in a feeder region of a sheet-processing machine of a conveyor table equipped with at least one endless conveyor belt, and at least two rotatably supported deflection rollers over which the conveyor belt is guided, the conveyo
5592880 Method of supplying or feeding dampening solution January 14, 1997
Dampening solution is supplied to a printing form of an offset printing press. The quantity of dampening solution is alternatingly varied about a preselectable mean value between a minimum value and a maximum value. The variation is independent of possible fluctuations due to deviations
5586508 Adjusting device for a matching table December 24, 1996
Adjusting device for a matching table having a support for at least one copy to be matched which iS reciprocatingly movable towards and away from an observer, and a guide for the adjusting movement provided in common for the support and a frame of the matching table includes a frictional
5582400 Device for conveying sheets to a sheet pile December 10, 1996
Device for conveying a sheet along a conveyance path to a sheet pile having a conveyor for gripping the sheet at least at one edge thereof, a drive connected to the conveyor, fixed guides for the sheet, a pneumatic device disposed in cooperative proximity with the guides, and a control o
5443437 Device for automatically adjusting a fold in a folding apparatus of a rotary printing machine August 22, 1995
A folding apparatus of a rotary printing machine includes a combination of a plurality of folded-product guiding cylinders including at least one cylinder with adjustable folding blades and impaling pins, and at least one cylinder with folding jaws, and transfer cylinders with gripper
5440983 Swinging pregripper of a sheet-fed printing press August 15, 1995
Gripper control for a cyclically swingably driven pregripper for transporting single sheets in a sheet-fed printing press, the pregripper having at least one sheet gripper mounted on a free end of a swivel lever motorizingly pivotable about a frame-fixed swivel shaft, the gripper con
5439206 Product delivery system for a printing-press folder August 8, 1995
Product delivery system for a printing-press folder having a cutting unit for dividing printed webs of material into a multiplicity of printed copies or signatures, and a gripper cylinder includes a device for alternatively feeding cross-folded copies from the gripper cylinder to a d
5409208 Device for conveying sheets from a printing press to a sheet pile April 25, 1995
Device for conveying sheets from a printing press to a sheet pile includes revolving endless conveyor members looped about at least two rotating members having respective horizontal axes of rotation disposed parallel to one another, mechanical grippers carried by the endless conveyor mem
5408930 Device for selectively cleaning a plurality of cylinders April 25, 1995
Device for selectively cleaning a plurality of cylinders of a sheet-fed printing press includes a washing device having equipment forming a cleaning surface, and a mutual pressure device for selectively bringing the cleaning surface into contact with one of the cylinders along a line
5094933 Process for filmless production of a printing form March 10, 1992
A process for filmless production of a ready-to-print printing form and for using it in an offset printing press includes exposing a printing form sensitive in an emission range of light-emitting diodes to an image in an exposure unit by means of a computer-controlled LED bar, passing th
5003874 Distributor roller for an inking unit of a printing press April 2, 1991
A distributor roller for use in a printing press which includes an axial shaft member, a casing member surrounding the axial shaft member and being rotatably and axially slidably mounted with respect thereto, an interior surface of the casing member having a cross-section which, when tak
4747348 Washing device for impression cylinders May 31, 1988
In a washing device for an impression cylinder of a printing machine, there is provided a washing roller capable of being brought into contact with and liftable away from a cylindrical jacket surface of the impression cylinder in vicinity of a gripper bridge of the impression cylinder, a
4480542 Device for ink profile-dependent regulation of dampening medium November 6, 1984
A device for ink profile-dependent regulation of dampening medium in an offset printing unit having an inking-dampening unit which, over the width of a type forme, supplies a dampening medium film of substantially uniform thickness to a plate cylinder and to an inking part of the ink
4469025 Device for film-mounting print control strips at a precise level and in registry September 4, 1984
A device for film-mounting print control strips at a precise level and in registry including a foil forming a template for a mounting foil when mounting a print control strip, the foil template containing ink and measuring-field information necessary for the film mounting at a precise
4449453 Device for drying printed sheets on offset printing presses May 22, 1984
Device for drying printed sheets on an offset printing machine, including infrared radiators disposed above a delivery pile of the sheets and between an upper and a lower run of an endless delivery chain, the infrared radiators being displaceable from a rest position into a working p
4449451 Inking unit for printing presses May 22, 1984
In an inking unit for a printing press having an ink duct with an ink-duct roller revolvable at a given speed therein, a transfer roller in rolling contact with the ink-duct roller, the transfer roller having an outer cylindrical surface formed with a plurality of helical ridges thereon,
4448533 Apparatus for ensuring the quality of printed products May 15, 1984
Monitoring device for densitometrically evaluating printed sheets with a printed print-monitoring strip includes holding means, a plurality of first densitometers for exclusively measuring full-tone density carried by the holding means at a selective spacing from one another so as to def
4440081 Dampening-inking unit for offset printing machines April 3, 1984
Dampening-inking unit for offset printing machines for forming and feeding an ink-water emulsion to a plate cylinder including a first and a second distributor roller, two inking rollers disposed between the first and second distributor rollers and connected to one another by an intermed
4395949 Sheet transport drum assembly in a rotary printing press August 2, 1983
Sheet transport drum assembly in a rotary printing press wherein a sheet being transported rests upon an air cushion formed by blowing air between the jacket of a rotatable transport drum and the sheet, including air nozzle means for producing the air cushion, and sealing strips disposed

 
 
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