| Patents for B41F 33 - Indicating, counting, warning, control, or safety devices (10,870) |
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| 10/23/1991 | EP0453403A1 Inking and dampening unit for a reversible printing unit in an offset printing machine |
| 10/23/1991 | EP0452769A1 Monitoring printing and cutting quality in a production plant for making packages |
| 10/23/1991 | EP0452704A2 Printing machines arrangement |
| 10/23/1991 | EP0452700A2 Method and device for determining compass differences of printing image positions of a multicolour offset printing |
| 10/22/1991 | US5060281 Method and apparatus for detecting disparity of cyclic length of printed patterns |
| 10/22/1991 | US5058500 Apparatus and printing system for developing lithographic plate for printing and measuring its image area rates |
| 10/17/1991 | WO1991015369A1 Control desk for printing machine |
| 10/15/1991 | US5058175 Quality inspection method for a printed matter |
| 10/15/1991 | US5056431 Bernoulli-effect web stabilizer |
| 10/15/1991 | US5056430 Method of positioning plate cylinders in a multi-color rotary printing machine |
| 10/14/1991 | WO1991016254A1 Sheet feeding device |
| 10/09/1991 | EP0451106A1 Device for the analysis of printing test strips |
| 10/09/1991 | EP0450155A1 Humidification and inking method for a printing plate positioned on a plate cylinder |
| 09/24/1991 | US5050994 Method of monitoring and/or controlling dampening-medium feed in an offset printing machine |
| 09/18/1991 | EP0446641A2 Position controller for the driving shafts of a printing machine |
| 09/18/1991 | CN1013946B Connecting device of additional means |
| 09/17/1991 | US5049798 Control apparatus |
| 09/10/1991 | US5046416 Printing unit for rotary printing presses |
| 09/05/1991 | DE4039366A1 Ascertaining and controlling distribution of wetting medium - applying optical brightener in soln. to agent for offset plate in printing machine |
| 09/04/1991 | EP0444583A2 Marks printed on a printable support for reading the print register |
| 09/04/1991 | EP0444427A2 Process for diagnosing the operation of a press according to the remission of full- and half-tone fields |
| 09/04/1991 | EP0444227A1 Safety device for printing machine |
| 09/02/1991 | CA2035118A1 Process and device for the control of the wetting behaviour of surfaces |
| 08/28/1991 | EP0443062A1 Device for inspecting quality of printed matter and method thereof |
| 08/28/1991 | CN1054034A Colour phase measuring method and guage for fabric trichromatic printing |
| 08/27/1991 | US5042373 Guard for the nips of rolls in calenders and like machines |
| 08/22/1991 | WO1991012500A1 Improvements relating to colour measurement |
| 08/21/1991 | EP0442824A2 Anti-wrap for high speed printing press |
| 08/21/1991 | EP0442322A1 Method for ink control and zonal presetting |
| 08/20/1991 | US5040460 Sheet register adjusting assembly |
| 08/17/1991 | CA2028494A1 Anti-wrap for high speed printing press |
| 08/14/1991 | EP0441220A2 Damping device |
| 08/14/1991 | DE4004056A1 Inking control esp. for offset rotary printing machine - applies colour pattern corrections before addn. of values extracted by scanning system from original colour documents |
| 08/14/1991 | DE4003834A1 Inking control for multi-colour offset litho printing press - utilising computer for storage and selection of subdivided colour data arranged in gps. for plate control |
| 08/13/1991 | US5038681 Control method and apparatus for spray dampener |
| 08/11/1991 | CA2035647A1 Method and apparatus for ink control and zonal presetting |
| 08/08/1991 | DE4003659A1 Constant stretch control for moving films - having extension of film monitored and adjusted to programmed extension at process point |
| 08/08/1991 | DE4003412A1 Offset printer - has additional rollers to carry water droplet dampener and increase ink emulsifying |
| 08/07/1991 | EP0440576A1 Device for invalidating valuable documents |
| 08/07/1991 | EP0439694A1 Method and device for measuring the alcohol content of a damping liquid in a damping device of an offset printing machine |
| 08/07/1991 | CN1013428B Method for monitoring and regulating guiding humid medium in offset press |
| 08/06/1991 | US5036765 Rotary printing machine with web tear or breakage damage control system |
| 08/06/1991 | US5036764 Method and device for reducing register errors in multicolor rotary-printing machines |
| 08/06/1991 | CA1287389C Control device for a printing press |
| 07/31/1991 | CN2081798U Jump controller for thermoprinting platen press |
| 07/31/1991 | CN1053505A Apparatus for invalidating security prints printed on print carriers |
| 07/31/1991 | CN1053408A Adjusting unit used in sheet transferring device of press |
| 07/24/1991 | EP0437813A2 Control-device for the feeding device in a sheet-processing machine, particularly for printing machine |
| 07/24/1991 | EP0437665A2 Device for controlling the damping fluid temperature in an offset printing machine |
| 07/24/1991 | EP0437648A1 Quality inspection method for a printed matter |
| 07/24/1991 | CN1053210A Diagnostic system for digital control arrangement |
| 07/23/1991 | WO1991010612A1 Off-line web finishing system |
| 07/23/1991 | US5033378 Defective print detecting device |
| 07/18/1991 | CA2033911A1 Apparatus for invalidating security prints printed on print carriers |
| 07/17/1991 | EP0436818A2 Diagnostic system for digitally controlled devices |
| 07/16/1991 | US5031535 Method of determining printing ink consumption in an offset printing press |
| 07/16/1991 | US5031534 Method and apparatus for setting up for a given print specification defined by a binary value representing solid color density and dot gain in an autotype printing run |
| 07/16/1991 | US5031334 Aligning method and apparatus for attaching a printing plate to a plate holder |
| 07/10/1991 | CN2080457U Microcomputer controlled revolution letterpress printing machine |
| 07/09/1991 | US5030838 Quality inspection device for printed matter and method thereof |
| 07/09/1991 | US5029527 Assembly for influencing inking in printing machines |
| 07/09/1991 | US5029526 Method and apparatus for setting the starting time of transverse ink distribution for printing machines |
| 07/09/1991 | US5029525 Sheet-fed offset and printing machine having a chain delivery and console |
| 07/09/1991 | CA1286021C Safety system for a printing machine |
| 07/02/1991 | US5027705 Apparatus for preventing undesired fluid flow past a flow control location |
| 07/02/1991 | CA1285635C Method and device for controlling the setting of the organs of a printing and cutting machine |
| 06/26/1991 | EP0434371A2 Image reader |
| 06/26/1991 | EP0434072A2 Printing control strip |
| 06/18/1991 | US5024156 Safety device for the control of web-fed rotary printing machines |
| 06/18/1991 | US5024155 Finger protecting element for cylinder nip |
| 06/18/1991 | US5024154 Transfer roller switching mechanisms of ink and water supply apparatus for use in printing presses |
| 06/13/1991 | DE3940822A1 Printing machine ink application method |
| 06/11/1991 | US5023812 Printing with a limitation of layer thickness and of tonal-value increase |
| 06/05/1991 | EP0430261A2 Method for the determination of the location of printing plates on cylinders of the printing units of a printing machine |
| 06/05/1991 | EP0429970A2 Web break switch |
| 06/04/1991 | US5022089 Method and apparatus for fast registration using crosshair register marks |
| 05/29/1991 | EP0429003A2 Device for cutting a paper web |
| 05/29/1991 | EP0428895A2 Actuator |
| 05/22/1991 | EP0427975A2 Device for the selection, identification and labelling of test sheets in a sample for quality control in a sheet printing machine |
| 05/21/1991 | US5018213 Method and apparatus for registration mark identification |
| 05/18/1991 | CA2029745A1 Actuator |
| 05/14/1991 | US5014618 Sensor based inking control for a printing press |
| 05/07/1991 | US5014335 Method of controlling at least one electric motor on an offset printing machine |
| 05/07/1991 | US5012912 Safety interlock/latch assembly for a printing press |
| 04/30/1991 | US5010820 Process for the defined production of an ink distribution appropriate to a production run in the inking unit of rotary printing presses |
| 04/30/1991 | US5010817 Method and apparatus for flexographic printing |
| 04/30/1991 | US5010812 Electronic device for controlling a printing machine |
| 04/24/1991 | CN1050844A Aparatus and method for register adjustment in printing machine with multi-printing mechanisms |
| 04/23/1991 | US5009158 Offset printing machine system |
| 04/17/1991 | EP0422412A2 Device and method for adjusting the register in a printing press with several printing units |
| 04/17/1991 | EP0422365A2 Multiple ink and water curves for printing presses |
| 04/10/1991 | EP0421003A1 Method of controlling the ink supply in a printing machine |
| 04/03/1991 | EP0419812A2 Multiple ink zero calibration for printing presses |
| 04/03/1991 | EP0419811A2 Processor interconnect network for printing press system |
| 04/02/1991 | US5003876 Printing apparatus with dual inking system |
| 03/27/1991 | CN1050158A Guard for offset rotary press |
| 03/20/1991 | EP0417465A2 Offset rotary printing machine with noise-protecting device |
| 03/20/1991 | CN1049999A Combined rotary web-fed printing machine |
| 03/19/1991 | CA1281591C Device for safeguarding a rotary printing machine |
| 03/13/1991 | EP0416389A2 Device for separating and stopping the paper web |