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| Number | Title | Issue Date |
| 7318378 | Temperature control method and printing machine In a method for controlling the temperature of a first printing unit by way of a temperature control medium, the temperature control medium used is a dampening solution from a second printing unit. ... | 01/15/2008 |
| 7228798 | Printing machine A web-fed printing machine is provided. The printing machine includes a plurality of printing units. A first work station precedes the printing units. A second work station follows the printing units. At least one lifting device is assigned to the printing units for... | 06/12/2007 |
| 7171901 | Flexographic printing method Methods and apparatus are provided for improving the accuracy and streamlining the process of preparing an imaged flexographic printing sleeve. Seam layout details are determined by a controller and transferred to an automated cutting device to cut flexographic prec... | 02/06/2007 |
| 7152527 | Module for sheet-fed perfecting multi-color printing press, printing unit and sheet-fed perfecting multi-color printing press, and manufacturing methods therefor An apparatus and a method in which when both of two-stage type and impression cylinder connecting type sheet-fed perfecting multi-color printing presses are manufactured, there is no need for a manufacture of extra parts or an extra stock, and also the replacement a... | 12/26/2006 |
| 7073444 | Method for checking the quality of flat workpieces and device for carrying out said method Method and apparatus for checking the quality of blanks processed with a machine processing blanks of at least a certain type, comprising: carrying out a registering for said possible blank types, feeding a register parameter (n) defining a required number of blanks... | 07/11/2006 |
| 7043387 | Testing system for printing press circuit board controllers Apparatus for testing functionality of a printed circuit board used to control operation of a printing press, including a plurality of input switches for providing to the circuit board test input signals simulating function control signals from a printing press cont... | 05/09/2006 |
| 6851360 | Satellite-type printing press Sheet-fed printing press, especially a satellite-type printing press by which double-side printing is performed with a single satellite-type press and if only single-side printing is required a sheet perfecting apparatus does not intervene in the sheet transfer path... | 02/08/2005 |
| 6796239 | Method and device for driving a printing press A method for driving a printing press includes driving, in a printing operation, via a gear train by at least a first motor, at least one drum for advancing printing material and a printing-form cylinder, processing angle-of-rotation signals of the drum in a control... | 09/28/2004 |
| 6668721 | Rotary printing press capable of nonstop printing during a change of printing plates A rotary offset printing press which has a series of printing units of identical make through which a web of paper is threaded. In each printing unit the blanket cylinder is made displaceable into and out of printing engagement with the plate cylinder and... | 12/30/2003 |
| 6651539 | Perforating, grooving or cutting device for a multicolor sheet-fed rotary press The invention relates to a perforating, grooving or cutting device for a multicolor or single-color sheet-fed rotary press (1) comprising printing and/or varnishing groups (2), at least one of which has a rubber cylinder (3) with a holding system (14) for... | 11/25/2003 |
| 6530319 | Quick change ink roll A mounting system is disclosed for removably mounting rollers and cylinders in a machine for quick and easy removal and replacement by other rollers and cylinders. The mounting system provides for rapid separation of the journal from the roller or cylinde... | 03/11/2003 |
| 6408746 | Printing unit A printing unit of an offset printing press utilizes a plurality of forme cylinders, transfer cylinders and at least two counter-pressure cylinders. In one mode of production all of the transfer cylinders engage one of the counter-pressure cylinders. In a... | 06/25/2002 |
| 6401608 | Printing press with perfecting station A printing press including a frame and a central impression drum rotatably supported on the frame. A plurality of first side printing stations is circumferentially spaced about the central impression drum and in communication therewith. Each of the plural... | 06/11/2002 |
| 5842414 | Digital printer A digital printer of the present invention employs a single laser depress unit. In a prepress process, an impression cylinder is used as a plate retention member for holding four printing plates. Image formation on the four printing plates held on the imp... | 12/01/1998 |
| 5469787 | Multi-color printing press A multi-color printing press having a single segmented impression cylinder with multiple, segmented blanket cylinders of equal diameter arranged about the periphery thereof. The segments of the impression cylinder and the blanket cylinders are equal in le... | 11/28/1995 |
| 5365841 | Safety device for control or regulation systems of drive units of a printing machine Safety device for control or regulation systems of drive units of a printing machine having at least individual sub-aggregates thereof mechanically disconnected from one another, a plurality of motors connected via respective gear transmissions to the sub... | 11/22/1994 |
| 5355795 | Automatic plate-loading cylinder for use with plate-imaging systems A winding assembly especially suitable for use in conjunction with a system for automated imaging of lithographic plate material, including on-press imaging systems. A feeder spool installed within a plate-support cylinder contains a rolled supply of plat... | 10/18/1994 |
| 5272971 | Ink temperature control system for waterless lithographic printing A temperature regulation system for a lithographic press, usually of the type using a waterless plate, used to control ink temperature at application to a substrate to be printed. The system includes a contactless sensor for sensing ink temperature betwee... | 12/28/1993 |
| 5213042 | Printing process and apparatus An apparatus and process in which a carrier image is applied to paper and ink is attracted to the carrier to form a printed image. The process is readily adaptable to the conventional printing methods including offset lithography. An apparatus for carryin... | 05/25/1993 |
| 5174205 | Controller for spark discharge imaging An apparatus and method for controlling discharge devices used to image a planographic printing plate are disclosed. Imaging information is stored in a first memory while discharge correction data is stored in a second memory. The correction data is used ... | 12/29/1992 |
| 5163368 | Printing apparatus with image error correction and ink regulation control Printing apparatus has at least one print station including a blanket cylinder in rolling contact with an impression cylinder, a print cylinder for supporting a lithographic plate, the plate cylinder being in rolling contact with the blanket cylinder, at ... | 11/17/1992 |
| 5005479 | Method and apparatus for imaging printing plates by spark discharge A method of imaging a lithographic plate having a printing surface comprising mounting a plate to the plate cylinders of a lithographic press having at least two plate cylinders, a corresponding number of blanket cylinders and an impression cylinder, expo... | 04/09/1991 |
| 4936211 | Multicolor offset press with segmental impression cylinder gear A low cost press able to print high quality continuous tone color copies comprises a single large diameter impression cylinder rotatably mounted to the machine frame. A plurality of print stations are spaced around the impression cylinder, each print stat... | 06/26/1990 |
| 4932318 | Multi-color printing machine A multi-color printing machine comprises a print carrier supplying system including a print carrier supply unit, a print carrier transporting unit and a print carrier discharge unit, and a printing image supplying including at least two printing mechanism... | 06/12/1990 |
| 4896599 | Swing-away colorhead for offset duplicator A second color print head attachment for an offset duplicator including a plate cylinder carrier 20 and an inker carrier 70 arranged to be pivotally secured to a side frame 11 of an offset duplicator press 10. A first pair of register pins 100 and 102 mou... | 01/30/1990 |
| 4752892 | Measuring elements of closed circuit systems for controlling-correcting the print in offset printing machines An improvement in the measuring elements of closed circuit systems for controlling-correcting printing in offset printing machines is provided. The values of measurements are amplified, analogically commutated, converted from analog to digital form, and t... | 06/21/1988 |
| 4735142 | Sheet transfer drum Sheet transfer drum located between two printing units of a multicolor sheet-fed rotary printing press and having a cylindrical surface formed of a plurality of sheet-carrying elements arranged in succession around the circumference of the drum, including... | 04/05/1988 |
| 4671176 | Operation lever controller for two-color printing apparatus An operation lever controller for a two-color printing apparatus having first and second units adapted to perform printing independently of each other and arranged such that all steps of respective printing operations are performed by rotating respective ... | 06/09/1987 |
| 4479431 | Collect-printing unit for security printing for use in a rotary printing press A collect-printing unit for security printing in offset printing for use in a rotary printing press, provided with a blanket cylinder to which a plurality of cut-out offset rollers are coordinated, is disclosed. Two ink transfer cylinders and one forme cy... | 10/30/1984 |
| 4421026 | Process color offset printing duplicator A process color offset duplicator uses a plurality of duplicator heads arranged serially to print full process color. The duplicator heads are adapted to apply a thin layer of ink onto plates held on their respective plate cylinders, in order that plate c... | 12/20/1983 |
| 4321869 | Device for driving or synchronizing cylinders in offset printing presses Drive for cylinders of an offset printing machine having a gear train constructed of spur gears disposed as drive gears on respective shafts of the cylinders, and including clamping devices for synchronizing rotation of the cylinders, the clamping devices... | 03/30/1982 |
| 4210078 | Apparatus for use on printing presses to insure optimum color density and to assist in making corrective adjustment A mechanism for sorting sheets from a printing press to assure proper color density and to assist in making corrective adjustment which includes a main conveyor for normally conducting sheets to a main delivery pile and having a transfer station. An auxil... | 07/01/1980 |
| 4149461 | Device for eliminating effect of bearing play in printing press cylinders A lithographic printing press having the usual plate cylinder, blanket cylinder and impression cylinder in pressure engagement with one another, the bearings having at least a normal amount of play so that the journals are supported in normal elevated pos... | 04/17/1979 |
| 4000691 | Rotary printing press with improved inking system The circumferential speed of driven ink application rollers is controlled to be less than the circumferential speed of the plate cylinders to which the ink application rollers supply ink and with which it is in friction-transmission connection. Preferably... | 01/04/1977 |
| 3967818 | Duplicating system A duplicating system for producing collated copy sets from precollated information. The precollated information is stored on a reversibly driven and reversibly developed web member which is driven past a first copy transfer station when moving in a first ... | 07/06/1976 |