Patents
Patents for B41F 33 - Indicating, counting, warning, control, or safety devices (10,870)
12/1992
12/15/1992US5170711 Method and apparatus for ink control and zonal presetting
12/15/1992CA2071231A1 Offset printing press with emulsification control
12/10/1992DE4118659A1 Adjustment device for printing machine - is operated with stepwise motion by electro-magnet
12/09/1992EP0517479A1 Method for automatically inspecting an exposed and bent lithographic plate
12/09/1992EP0517462A1 Dampening fluid supply system
12/08/1992US5168809 Turning device for a sheet-fed rotary offset printing press for first form and perfector printing
12/08/1992US5168807 Printing apparatus and method
12/08/1992US5168752 Apparatus for testing the color separations of a multicolor print
12/07/1992CA2070217A1 Method of and apparatus for automatically inspecting an exposed and bent lithographic plate
12/03/1992DE4218076A1 Automatic alignment of print carrier esp. for colour printing press - printing alignment accuracy reference marks in colour and black and evaluating their separation to determine alignment errors for other colours
12/03/1992DE4218063A1 Optical scanner for printed register marks on paper sheets - reflects light from surface to one optical system to provide alignment indication and second system to read markings by line scanner
12/02/1992EP0516041A1 Ink supply apparatus of a proofing press
12/01/1992US5167604 Automatic chopper blade operating timing regulating method and apparatus
12/01/1992US5167187 Throw-on/throw-off device for a blanket cylinder in the printing unit of a sheet-fed offset press
12/01/1992US5167186 Offset printing machine, printing plate and image position reading-out method for offset printing machine
11/1992
11/19/1992EP0513482A1 Side mark and overlap inspection in a rotary sheet fed press
11/17/1992US5163371 Method and a device for catching a printed web after breakage
11/17/1992US5163368 Printing apparatus with image error correction and ink regulation control
11/12/1992DE4115026A1 Short inking mechanism for rotary offset printing press - includes blade positioned by adjuster, in electronic control loop, for thickness of film on feed roller
11/11/1992EP0512448A1 Device for reading pale colour marks in printing machines
11/10/1992US5163012 Apparatus for carrying out the comprehensive quality control of printed sheets
11/10/1992US5162865 Method and device for positioning a sensor device
11/10/1992US5161461 Visually functional safety covering device
11/10/1992CA1310091C Missing copy detector
11/10/1992CA1309895C Hydraulic inching drive system
11/05/1992DE4114320A1 Pneumatic sheet checking system for printing machine - has vacuum pump and suction system for detecting sheet presence on feed cylinder via anemometer and electronic evaluation
11/03/1992CA1309762C Printing machine control system
10/1992
10/27/1992CA1309295C Removable inking device for offset press
10/22/1992DE4212575A1 Optimised performance of machine using fuzzy logic controller that has learning process - creating knowledge base used with fuzzy logic rules for setting control to optimise output quality
10/21/1992EP0509278A1 Device for controlling the sheet run in the region of laymarks in sheet offset printing machines
10/15/1992DE4110786A1 Vorrichtung zur ermittlung der schichtdicke eines fluids Device for determining the layer thickness of a fluid
10/14/1992CN1065241A Method and apparatus for detecting stencil surface covering degree
10/13/1992US5155444 Trim bar gap verification tool and method using a flexible capacitor sensor having a magnetic metallic laminate
10/13/1992US5154279 Thickness measurement of printed products in a scale flow
10/13/1992CA1308775C Process and arrangement for the evaluation of signals from an incremental pulse generator
10/08/1992DE4108651C1 Screen printing method reproducing consistent coat thicknesses on substrates - measuring distance between underneath side of film and surface to be printed and supplying computer with result for registering any deviation
10/07/1992CN1018536B Adjusting unit used in sheet transferring device of press
10/06/1992US5152220 Wiping device for the plate cylinder of an intaglio printing machine
10/05/1992CA2061278A1 Device for determining the thickness of a fluid film
10/01/1992DE4110564A1 Alignment control for patterns of material web for printing press - monitors material flow near input rollers and provides correction signals for print rollers
09/1992
09/30/1992EP0505769A1 Method for the determination of area coincidence of a master, in particular a printing plate, as well as a device for carrying out the method
09/23/1992EP0505323A1 Method of adjusting the screendot sizes of a rotary offset printing machine
09/23/1992EP0505320A1 Method and installation for temporarily storing and/or rearranging overlapping printed products
09/22/1992US5148747 Process for setting a production run ink zone profile
09/22/1992US5148715 Actuator or adjusting drive
09/15/1992US5146850 Method for controlling impression-on operations for an intaglio printing press and a device thereof
09/09/1992EP0502408A1 Method of and device for controlling webs
09/08/1992US5146346 Method for displaying and printing multitone images derived from grayscale images
09/08/1992US5146173 Position determining device
09/08/1992US5146099 Apparatus for measuring amount of positional deviation of a recording sheet
09/08/1992CA1307162C Anti-wrap up device for web fed printing presses
09/02/1992CN2114554U Special end product rule for printing
09/01/1992US5144566 Method for determining the quality of print using pixel intensity level frequency distributions
09/01/1992US5142981 Printing speed dependent throw on/off control system for a sheet-fed offset press
09/01/1992US5142980 Pneumatic controller for a printing machine
09/01/1992US5142979 Safety device for printing machine
08/1992
08/26/1992CN2113878U Paper cutting measuring scale specially adapted for printing
08/25/1992US5142139 Apparatus for treating image information of printed material and discriminating same
08/25/1992US5142138 Image reader including plural light stopping plates with apertures
08/25/1992US5141323 Color measurement system
08/25/1992US5140902 Ink transfer roller
08/20/1992WO1992013721A1 Apparatus and method for printing of images with compensation for dislocation of printing media
08/20/1992DE4104537A1 Controlling offset printing machine for good colour reproduction - Colormetrically measuring fields over saturated and pastel coloured and ascertaining disparity difference from colour stipulated by original
08/18/1992US5140340 Apparatus and method for printing of images with compensation for dislocation of printing media
08/18/1992US5139386 Apparatus for the stacking of printing products arriving in an imbricated formation
08/18/1992US5138944 Method and apparatus for setting respective positions of ink keys
08/13/1992DE4103574A1 Detecting colour faults during printing - continuously measuring colours of colour fields on printed matter and comparing measurement values obtained with stipulated values
08/12/1992CN2112492U Special ruler for printing
08/11/1992US5138667 Process and device for detecting print registration marks on a web from a multi-color printing press
08/11/1992US5136948 Marking method and apparatus
08/11/1992US5136940 Auxiliary drive for the ductor roller of a sheet-fed offset press
08/06/1992DE4102472A1 Rotationsdruckmaschine zur verarbeitung von bogen Rotary printing machine for processing of sheet
08/04/1992US5134932 Self adjusting printing device and method
07/1992
07/29/1992EP0495987A1 Method and apparatus for controlling synchronized phases in system for driving printing rolls for corrugated board printing machine
07/28/1992US5134665 Apparatus and method of inspecting solder printing
07/23/1992DE4101208A1 Transferred ink quantity measurement for ink printer - ultrasonically measuring distance to ink film from fixed point in zones and integrating measured values
07/16/1992DE4140606A1 Determining thickness of dampening film for lithographic or offset printing press - illuminating film, e.g. with UV light and measuring fluorescence of medium added to film
07/16/1992DE4100789A1 Adjustable of colorimeter of rotary printing machine esp. offset unit - adjusting regulating elements individually according to colour zones for colour roller and computing mean value from updated actual values of each zone
07/14/1992US5130557 Photoelectric web tension detector for signaling web break
07/14/1992US5129568 Off-line web finishing system
07/14/1992US5129319 Safety device for ink forming rollers
07/14/1992CA1305235C Cutoff control system
07/10/1992WO1992012011A1 Improved printing apparatus and method
07/09/1992DE4100170A1 Colour matching desk for visual and measuring quality control of printed sheets - has X=Y control deflecting projector so that light beam covers while sheet area rapidly and photoelectric scanner supplying evaluating unit
07/07/1992US5128879 Method and apparatus for acquiring covering data of print areas
06/1992
06/30/1992US5126578 Process and device for measuring displacement rates of a web running through a multi-color rotary printing press
06/24/1992CN1017128B Printing unit for rotary printing machine
06/23/1992US5125037 Procedure for monitoring printing quality
06/23/1992US5123887 Apparatus for determining processing positions of printer slotter
06/23/1992US5123346 Dampening system
06/23/1992CA1303899C Microprocessor-based press dampening control
06/17/1992EP0490475A1 Starting and stopping the printing of fed sheets
06/17/1992EP0490106A1 Device for preventing damage in a printing machine
06/17/1992EP0490097A2 Process for investigating transparent webs, especially photographic paper supports
06/17/1992EP0490093A1 Method for controlling inking of printed products
06/16/1992US5122977 Method of ink control in a printing press
06/04/1992DE4139484A1 Printing control system - allows data to be organised in sets that can be organised in different layout forms
06/04/1992DE4038021A1 Feed-back for moisture medium in wet offset printing machine - involves return flow pipe from machine discharging over fluid level in storage tank
06/03/1992EP0488910A1 Method and apparatus for regulating the water-ink balance on a printing plate of an offset printing machine
06/03/1992EP0488608A1 Predicting register mark position