Patents
Patents for B41F 21 - Devices for conveying sheets through printing apparatus or machines (4,769)
06/1996
06/13/1996DE4443493A1 Guide system for material with considerable bending stiffness
06/05/1996EP0714770A1 Device for conveying paper
06/05/1996DE4442557A1 Arrangement for depositing sheets from printer with dryer on to stacks
05/1996
05/28/1996US5520382 Sheet transfer device operative against sheet with flexible transfer force
05/23/1996DE19515394C1 Producing surface structure for printing machine cylinder
05/21/1996CA2100887C Apparatus and method for delivering printed products in a rotary printing press
05/09/1996DE4439808A1 Method of continuous sheet application to printing machine in side alignment
05/09/1996DE4439092A1 Einrichtung zum Zuführen blattförmigen Materials Means for feeding sheet material
05/01/1996EP0709329A2 Sheet delivery device with chains of a rotary printing machine
05/01/1996EP0709186A1 In-feed gripper for rotary sheet printing machines
04/1996
04/26/1996CA2134297A1 Modular feeder printing system
04/24/1996EP0708045A1 Arrangement and support for a side-pull-device
04/24/1996EP0707556A1 Device for the transport and deposit of sheets in a stacking region of a rotary press
04/24/1996CN1121036A Gripper bar and device for fastening the said bar onto a chain train in a machine that processes plate-like workpieces
04/24/1996CN1121033A Transport system with electrostatic substrate retention for printing presses and other apparatus requiring accurate positioning registration
04/23/1996US5509352 Paperboard processing machine with vacuum transfer system
04/17/1996EP0706966A1 Apparatus for slowing down sheets
04/17/1996EP0706882A1 Sheet conveying drum for a printing machine
04/17/1996EP0706881A1 Sheet guiding system for a sheet turn-over device in a perfecting printing machine
04/17/1996CN1120512A Device for fastening a gripper bar onto a chain train in a mahchine that processes plate-like workpieces
04/11/1996DE4434623A1 Adjuster with pneumatic piston cylinder unit in printer
04/10/1996EP0705779A2 Variable feed table
04/10/1996EP0705691A1 Sheet transfer cylinder for a rotary printing machine
04/10/1996EP0705690A1 Sheet guiding cylinder, with an adjustable outside diameter
04/09/1996US5505441 Paper conveying apparatus for sheet-fed press
04/09/1996CA2158388A1 Device for the deceleration of sheets
04/04/1996DE4435337A1 Method of controlling curve of cylinders and drums in sheet printing press
04/04/1996DE4435264A1 Sheet guiding mechanism to processing machine
04/04/1996DE19503739C1 Registration error prevention device for pre=gripper of chain gripper bar
04/03/1996EP0704398A2 Device for register correction and compensation of deformed sheets in the feeder of a sheet printing machine
03/1996
03/28/1996DE4434151A1 Grip for sheet printing machine
03/28/1996DE19523888A1 Sheet accelerating system drive
03/27/1996EP0703075A2 Gripper cylinder
03/27/1996EP0703074A2 Sheet transfer cylinder for a printing press
03/27/1996EP0703073A2 Sheet transfer cylinder for a printing press
03/27/1996EP0703072A1 Sheet transfer drum
03/26/1996US5501447 Device for adjusting the positions of suction-type grippers on a sheet-transfer drum
03/20/1996EP0701958A1 Device for guiding a sheet
03/14/1996DE4432220A1 Gripper on printing cylinder
03/14/1996DE4431685A1 Cam drive with periodically circulating drive member for printing machines
03/14/1996DE4431684A1 Drive for sheet accelerating device
03/14/1996DE4431683A1 Drive for sheet accelerating device
03/14/1996DE4431682A1 Cam=controlled sheet accelerating system
03/14/1996DE4431680A1 Drive for sheet accelerating system
03/14/1996DE4431679A1 Cam=controlled drive for swinging unit of printing machine
03/14/1996DE19523887A1 Drive for sheet accelerating system
03/12/1996US5497987 Sheet-guiding device
03/12/1996CA2058968C Sheet feeding apparatus
03/07/1996DE4431488A1 Paper sheet guide in feed of fast running printing machine
03/06/1996EP0699609A2 Covering device with a variable length for a printing machine
03/06/1996EP0699603A2 Chain guide track for a chain drive with roller chains, in particular in a printing machine
03/06/1996EP0699528A2 Sheet transfer cylinder for a printing machine
03/06/1996EP0699527A2 Method and means for flat fuiding of sheets in the grippers on the curved surface of a rotary printing machine cylinder
03/05/1996US5496023 Leading edge stop for aligning paper sheets on a feeder table
02/1996
02/27/1996US5493968 Image forming apparatus
02/15/1996DE4428592A1 Auxiliary gripper for sheet printing machine
02/14/1996CN2219782Y Ion flow generator
02/14/1996CN1030974C Device for alignment of front edges of papers
02/07/1996EP0695715A1 Device for a sheet delivery apparatus
02/07/1996EP0695707A2 Device for guiding material in sheet form without contact
02/07/1996EP0695635A2 Device for fixing packings on printing cylinders
02/06/1996US5489093 Sheet gripper for a sheet-processing machine
02/06/1996US5488905 Air-dam for printing press vacuum transfer apparatus
01/1996
01/31/1996EP0694387A1 Method and means for controlling the position of a convertable sheet printing press
01/31/1996CN1115737A Safety device in a platen press that processes plate-like workpieces
01/25/1996DE4424967A1 Printed sheet turning device
01/24/1996CN1030756C Drum for transporting sheets
01/18/1996DE4424977A1 Sheet deflector for printing machine sheet carrying cylinder
01/18/1996DE4424972A1 Sheet guide cylinder mechanism for rotary printing machine
01/18/1996DE4424971A1 Sheet guide feeder for rotary sheet printing machine
01/18/1996DE4424970A1 Pneumatic feeder for sheet turning on rotary printing machine
01/18/1996DE4424969A1 Guide blade mechanism for rotary sheet printing machine
01/18/1996DE4424968A1 Sheet guiding during turning on rotary printing machine
01/18/1996DE4424966A1 Sheet guide on rotary printing machine convertible from one to two side printing
01/18/1996DE4424965A1 method of winding sheet on rotary sheet printing machine adjustable from one to two side printing
01/18/1996DE4424964A1 Turning sheet guide for rotary sheet printing machine
01/09/1996US5482267 Device for adjusting the position of suction-type grippers on a sheet-transfer drum
01/02/1996US5480138 Device for sheet-format adjustment of a sheet-transfer drum
01/02/1996US5480137 Suction-air control device for a sheet-transfer drum
01/02/1996US5480133 Adjustable sheet take-off mechanism for a screen printing press
01/02/1996US5479856 Rotary printing press for two-sided printing of sheets
12/1995
12/26/1995US5477780 Horizontal sheet transfer multiple color offset rotary printing press with horizontal slide access
12/26/1995CA2069822C Feed table of a sheet-fed printing press
12/21/1995DE4421199A1 Paper sheets or printed product aligning mechanism
12/12/1995US5473983 Rotary printing press
12/06/1995EP0685337A2 Device for adjusting the gripper support for grippers in a turning cylinder of a perfecting printing machine
12/06/1995EP0685305A1 Safety device for a platen press used in the treatment of plate elements
11/1995
11/30/1995DE4434778C1 Sheet guide between guide cylinder and drum in rotary printing press
11/30/1995DE4428527C1 Variable length cover for printing machine
11/28/1995CA2116353C Gripper conveyor for multiple color offset presses
11/22/1995EP0683126A1 Method and apparatus for automatically delivering a pile of sheets to a printing machine
11/16/1995DE4434828C1 Sheet guide drum with adjustable dia. for rotary printing machine
11/15/1995EP0681979A1 Device for handling printed products
11/14/1995US5465663 Sheet-guiding drum for printing machines
11/09/1995DE4415669A1 Conveyor system for sheets in rotary printing machines
11/08/1995EP0680908A1 Device for adapting the vacuum in a suction belt feeding table comprised in a sheet feeder
11/08/1995EP0680907A1 Device for attaching a gripper bar to a chain system in a machine for processing sheet elements
11/08/1995EP0680906A1 Gripper bar and fastening device for a chain system in a machine for processing sheet elements
10/1995
10/31/1995US5461977 Device for transferring single sheets to the impression cylinder of a sheet fed rotary printing machine
10/25/1995CN2210783Y Controller for the opening and closing of the gripper of trasfer drum
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