| Patents for B41F 33 - Indicating, counting, warning, control, or safety devices (10,870) |
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| 03/13/1991 | EP0416073A1 Process and means for directly and effectively determining the hollow volume of a screen or the absolute and relative ink releasing factor of inking rollers, particularly for flexographic printing. |
| 03/13/1991 | CA2023196A1 Protective device for offset rotary printing machines |
| 03/12/1991 | US4998472 Device for controlling a printing machine |
| 03/06/1991 | EP0415881A2 Combination rotary printing machine, particularly for printing securities |
| 02/19/1991 | US4994975 Process and apparatus for register adjustment or maintenance, with automatic initial register adjustment, of a web of preprinted material |
| 02/12/1991 | US4991761 Web guide apparatus |
| 02/12/1991 | CA1280218C Printing machine with at least one printing unit |
| 02/05/1991 | US4989855 Device for positioning plate-shaped pieces during their transfer into a processing machine |
| 01/31/1991 | DE3924376A1 Transfer quantity measurement for printer ink removal mechanism - integrating difference values of distances from sensors to undisturbed ink film and ink transfer gaps on ink roller |
| 01/30/1991 | EP0410253A2 Device for carrying out a comprehensive quality control on printed sheets |
| 01/23/1991 | EP0408972A2 Offset-printing group |
| 01/23/1991 | EP0408958A2 Method and device for measuring the web deviation in a polychromatic rotary printing machine |
| 01/22/1991 | US4986180 Device for controlling the opening of an ink fountain of a printing machine |
| 01/17/1991 | DE4019293A1 Sheet feeding arrangement for printing machine with markings - performs machine speed-dependent phasing of clock pulses to flip=flops triggered by sheet sampling sensors |
| 01/16/1991 | EP0408507A1 Method for the determination of the distances between the color coordinates of two halftone regions printed with a printing machine and method for monitoring or adjusting the color printing of a printing machine |
| 01/16/1991 | EP0408490A2 Method and device for counting printed products |
| 01/16/1991 | CA2021163A1 Process and device for measuring displacement rates of a web running through a multi-colour rotary printing press |
| 01/15/1991 | US4984773 Printing press |
| 01/08/1991 | US4982887 Tag size differentiating system for continuous tag printing machines |
| 01/01/1991 | US4982413 Method and device for evaluating signals of an incremental pulse generator |
| 12/27/1990 | EP0403886A1 Device for the stacking of printed products arriving in a scale formation |
| 12/27/1990 | EP0403861A2 Method of rapid attainment of print-readiness |
| 12/27/1990 | EP0403754A2 Device for adjusting the lateral and longitudinal register for a registering drum of a rotary sheet printing machine |
| 12/25/1990 | US4980623 Method and device for reducing torque loading on a system driven by an electric motor |
| 12/19/1990 | EP0403082A2 Register mark detection |
| 12/18/1990 | US4977832 Method and apparatus for coordinating a printing press control with a hard copy image |
| 12/18/1990 | US4977831 System and method for zonal fountain control in a printing press |
| 12/13/1990 | WO1990014955A1 A method and a system for control of printing processes |
| 12/12/1990 | EP0401691A2 Method and device for detecting registration marks in a multicolour printing press |
| 12/12/1990 | EP0401241A1 Process for measuring covering data of printing areas. |
| 12/11/1990 | US4976545 For analyzing a surface structure |
| 12/11/1990 | CA1277610C Electromagnetic clutch-brake positioning assembly |
| 12/06/1990 | DE4016709A1 Rotary printing press evaluator |
| 12/04/1990 | US4975971 Method and apparatus for detecting significant difference of sheet material |
| 12/04/1990 | US4975862 Process and apparatus for the ink control of a printing machine |
| 12/04/1990 | CA1277363C Continuously variable printing method and apparatus |
| 11/27/1990 | US4972774 Automatically controlling water feedrate on a lithographic press |
| 11/20/1990 | US4972354 Processor-controlled data input and output device |
| 11/20/1990 | US4972088 Register mark detection |
| 11/20/1990 | US4971446 Valid patch discrimination method for automatic density control apparatus |
| 11/08/1990 | DE3915587C1 Measurement element for multiple colour offset printing - determines match difference between two partial images independently of quality of image signal |
| 11/07/1990 | EP0395959A2 Method and device for adjusting an ink metering device in a printing press from a zero ink application position |
| 11/07/1990 | EP0395890A2 Method for controlling a printing machine |
| 11/06/1990 | US4967880 Process and apparatus for monitoring lubricating oil water content for rotary printing presses |
| 11/01/1990 | WO1990012689A1 Bernoulli-effect web stabilizer |
| 10/31/1990 | EP0394681A2 Method for regulating the ink supply in a printing machine with limitation of the ink film thickness and of the tonal value increase |
| 10/30/1990 | US4967379 Process for the ink control or regulation of a printing machine by comparing desired color to obtainable color data |
| 10/30/1990 | US4966074 Web wrap detection system for an offset web printing press |
| 10/25/1990 | DE3928877A1 Einrichtung zur ermittlung des druckenden flaechenanteiles fuer druckmaschinen Means for detecting the print flaechenanteiles for printing machines |
| 10/24/1990 | EP0393365A2 Method and device for supplying damping liquid in an offset printing machine |
| 10/19/1990 | CA2014950A1 Procedure and device for the delivery of moistening agent on an offset printing machine |
| 10/19/1990 | CA2007844A1 Bernoulli-effect web stabilizer |
| 10/18/1990 | WO1990011895A1 Paper feed device for the transfer station of an electrophotographic printing device |
| 10/18/1990 | WO1990011894A1 Non-mechanical rapid-printing device with feed mechanism for a continuous paper strip |
| 10/17/1990 | EP0392814A2 Monitoring apparatus for colour printing press |
| 10/16/1990 | US4963029 Register-measuring system |
| 10/16/1990 | US4963028 Densitometric sensing device for use in printing presses |
| 10/10/1990 | EP0391246A2 Paper holding device |
| 10/10/1990 | EP0391223A2 Method for driving a printing press during the trial proof print |
| 10/09/1990 | US4961378 Anti-wrap up device for web fed printing presses |
| 10/04/1990 | WO1990011188A1 Process and means for directly and effectively determining the hollow volume of a screen or the absolute and relative ink releasing factor of inking rollers, particularly for flexographic printing |
| 10/03/1990 | EP0390750A2 Process and device for controlling the tension of paper of a printing and/or cutting machine for providing commercial printing on a continuous paper web |
| 10/03/1990 | EP0313541B1 Process for controlling and maintaining register of a web of preprinted material with initial automatic register adjustment |
| 09/30/1990 | CA2013308A1 Method and apparatus for adjusting the tension of the paper in a printing and/or die-cutting machine for the formation of commercial continuous forms |
| 09/27/1990 | DE3909410A1 Method for optical reflection measurements and a densitometer and printing control strips for carrying it out |
| 09/26/1990 | EP0388904A2 Photoelectric adjusting method and device for automatic computer-based positioning of printing stencils for a rotary screen printing press |
| 09/26/1990 | EP0388697A2 Method and device for setting a measure field for measuring the thickness of the dampening film in an offset printing plate |
| 09/19/1990 | CN1045366A Method for damping control in offset press |
| 09/12/1990 | EP0386489A2 Method of controlling dampening in an offset printing machine |
| 09/12/1990 | EP0386334A2 Position determining device |
| 09/11/1990 | US4955290 Electronic multimachine operating system for remotely controlling printing machines |
| 09/09/1990 | CA2008816A1 Procedure to regulate moisture on an offset printing machine |
| 09/06/1990 | DE4006594A1 Ink feed drive system for rotary press - has synchronous motor pump drive using control signals from press |
| 09/04/1990 | US4954540 Fireproof, bisaziridine derivatives |
| 08/28/1990 | US4951567 Electronic safety system for a printing machine |
| 08/22/1990 | EP0383295A2 Temperature-regulating device for printing machines |
| 08/16/1990 | EP0382347A2 Printing apparatus with dual inking system |
| 08/16/1990 | DE3904301A1 Method on a multi-colour printing machine operating by the halftone process to achieve a preselected printing result |
| 08/14/1990 | US4949284 Method of adjusting density measurement position |
| 08/14/1990 | US4948982 Device for detecting a missing copy by detecting the presence or absence of a colored area on a surface |
| 08/14/1990 | US4947746 Print control strip |
| 08/14/1990 | US4947686 Method and apparatus for determining web tension setting |
| 08/07/1990 | US4947348 Densitometer method and system for identifying and analyzing printed targets |
| 08/07/1990 | CA1272392A1 Roll-firmness measuring device |
| 08/01/1990 | EP0380031A2 Drive unit for an ink roller array |
| 08/01/1990 | EP0031358B2 Press presetting method |
| 08/01/1990 | CN1008989B Method and apparatus for regulating colour of printing machine |
| 07/25/1990 | EP0379069A2 Method and device for cleaning the cylinders of a rotary web printing machine |
| 07/24/1990 | US4942814 Operation stand for measuring sheet size for sheet-fed press |
| 07/19/1990 | DE3936860A1 Auxiliary equipment for photocopier printing plate scanning - enables print density to be automatically controlled for individual items of range of input documents during copying |
| 07/18/1990 | EP0378497A1 Device for controlling and regulating the damping solution in an offset-printing system |
| 07/18/1990 | EP0378283A2 Quality inspection device for printed matter and method thereof |
| 07/17/1990 | CA1271664A1 Printing machines, especially numbering machines |
| 07/12/1990 | DE3843473A1 Damping unit for offset printing machines |
| 07/11/1990 | CN1043665A Connecting device of additional means |
| 07/07/1990 | CA2005137A1 Device to determine positioning |
| 07/05/1990 | DE3844198A1 Circuit arrangement for detecting markings |
| 07/04/1990 | EP0375958A2 Device for joining additional appliances together |
| 06/27/1990 | EP0374523A2 Method for monitoring centrally lubricated machine sets |
| 06/27/1990 | EP0374482A2 Apparatus for preventing undesired fluid flow past a flow control location |