Patents
Patents for B41F 33 - Indicating, counting, warning, control, or safety devices (10,870)
05/1979
05/01/1979US4151986 Sampling apparatus of printed papers from conveyor line thereof
05/01/1979US4151796 Device for automatically controlling deviations in liquid feed in offset presses
04/1979
04/17/1979US4149802 Device for measuring ink film thickness
03/1979
03/27/1979US4146798 Ink feed volume measuring device
03/27/1979US4146474 Method and apparatus for controlling dampening water for use in printing machines
02/1979
02/27/1979US4142105 Method for producing a switching signal on the passage of a contrast jump
02/21/1979EP0000689A1 Method and apparatus for controlling the water-ink balance in offset printing devices
02/20/1979US4140054 Safety devices in an electronic franking machine
02/13/1979US4139765 Apparatus for counting printed products arriving upon a conveyor path in an imbricated product stream and method of operating such apparatus
02/06/1979CA1047786A1 Automatic densitometer and method of color control in multi-color printing
01/1979
01/24/1979EP0000328A1 Measuring method and device for detecting errors in printed sheets and bands
12/1978
12/26/1978US4131804 Electrooptical scanning device
11/1978
11/28/1978US4127265 Sheet sensing device in a rotary printing press
10/1978
10/10/1978US4119699 Method for wet metallurgical processes
09/1978
09/26/1978US4117316 Apparatus for controlling operation cycle of duplicating machine
09/26/1978US4116626 Printing of pattern designs with computer controlled pattern dyeing device
09/26/1978US4116125 Control system for positioning units exhibiting dead time in their response to activating signals
09/12/1978US4112842 Drive for sheet-fed rotary printing presses with at least two tandem-mounted printing units
09/05/1978US4112379 Jam detector
08/1978
08/29/1978US4109574 Control system for positioning units exhibiting dead times
08/08/1978US4105914 Presetting counter device
04/1978
04/25/1978US4085670 Check digit numbering mechanisms
04/18/1978US4084508 Offset printing machine comprising improved control mechanism
04/04/1978US4082039 Duplicator control by area scanned coded master
03/1978
03/14/1978US4078487 Control method and control for a web processing machine
03/07/1978US4077318 Apparatus for printing upon moving sheets, paper or the like with automatic typesetting
02/1978
02/07/1978US4072104 Printing unit drive system
02/07/1978US4072103 Gravure press for making multicolor proofs
02/07/1978US4072100 Numbering machine assembly especially adapted for use with printing machinery
02/07/1978US4072060 Apparatus for sampling printed sheets from a continuous stream of such sheets
01/1978
01/31/1978US4070761 Printing press with inventory control
01/17/1978US4068582 Automatically controlled numbering machine
12/1977
12/27/1977US4064804 Duplicator and method of duplicating
10/1977
10/11/1977US4052937 Printing plate water sensing means and method
08/1977
08/23/1977US4043265 Ink level warning system
07/1977
07/05/1977US4034276 Digital signal processor for servo velocity control
07/05/1977US4033260 Control system for multi-color rotary printing machines, especially for alternate one-side and two-side printing
06/1977
06/14/1977US4029008 Moisture control system
06/07/1977US4027588 Control mechanism for an offset printing machine
05/1977
05/03/1977US4020759 Method and apparatus for marking a web
04/1977
04/19/1977US4019187 Ink jet recording apparatus
04/05/1977US4015524 Proofing press
03/1977
03/29/1977US4014260 Removable guard on cylinders of printing presses
03/29/1977US4014259 Drive for multicolor sheet-fed rotary printing presses with tandem-mounted printing units
03/22/1977US4013357 Copying machine in which, paper jamming at copying paper cutting mechanism is prevented
03/22/1977US4013006 Roll-fed sheet printing apparatus
01/1977
01/25/1977US4004510 Equipment for introduction of a strip of paper, cardboard or similar material into a printing machine
01/18/1977US4003660 Sensing head assembly for multi-color printing press on-line densitometer
01/04/1977US4000693 Safe access arrangement for driven mechanisms in a printing press
01/04/1977US4000692 Throw-off system for rotary offset printing press
12/1976
12/28/1976US3999851 Antijamming safety device for copying machine
12/07/1976US3995958 Automatic densitometer and method of color control in multi-color printing
11/1976
11/16/1976US3991663 Observation of moving webs
10/1976
10/19/1976US3987429 Malfunction detector system for item conveyor
10/12/1976US3985073 Numbering head attachment for a printing press
09/1976
09/21/1976US3981238 Method and apparatus for determining doctor blade position in a rotogravure process
08/1976
08/31/1976US3977309 Observation of moving webs
07/1976
07/20/1976US3970393 Automatic compensation for densitometer imbalance
07/20/1976US3970000 Label stock overprinting machine
06/1976
06/29/1976US3965735 Device for measuring pressure between cylinders of a printing press
06/01/1976US3960451 Dampening system on an offset printing press with a device for regulating the amount of water on the plate
06/01/1976US3960077 Printing with blanket having recessed portion
05/1976
05/25/1976US3958509 Image scan and ink control system
05/18/1976US3956986 Inking system for printing machines
05/18/1976US3956985 Operating lever mechanism for offset printing press
04/1976
04/06/1976US3948510 Sheet jam detector for electrophotographic copying machine
03/1976
03/30/1976US3947356 Arrangement for regulating the moistening solution mixture in a moistening solution preparation plant for an offset printing press
03/30/1976US3946669 Printing arrangement alternatively operated for one-side printing and two-side printing with control system therefor
03/16/1976US3944933 Jam detection circuit
01/1976
01/06/1976US3931570 Apparatus for measuring cell volume in a gravure printing surface