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7631599 |
Sheet guide apparatus
A sheet guide apparatus includes a transfer cylinder, first vane members, and a lateral air blowing guide. The transfer cylinder conveys a sheet. The first vane members are arranged at at least one...
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7600755 |
System and method for preventing envelope distortion in a mailpiece fabrication system
A vacuum deck for a mailpiece insertion module including a plurality of friction drive belts, a support plate slideably supporting the drive belts, a repositionable backstop assembly disposed along...
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7594657 |
Medium pressing guide
Various embodiments and methods relating to a guide for pressing a medium towards a surface of a drum and for retracting the guide away from the surface are disclosed.
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7584957 |
Device for cycling blast or suction air in a sheet processing machine
A device for controlling blast and/or suction air in a sheet processing machine, especially a printing press, includes a rotary valve for making ready different positive and negative pressure...
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7537215 |
Method and apparatus for securing stretchable film using vacuum
A vacuum wheel for securing and retaining various sizes of stretchable film is disclosed. The outer surface of the vacuum wheel includes an advantageous pattern of vacuum openings and vacuum slots,...
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7530569 |
High volume adjustable vacuum assembly for a roll in an interfolding machine
An interfolding machine includes a rotating roll with a series of ports configured to apply a vacuum pressure for holding and releasing sheet or web material. The interfolding machine further...
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7530449 |
Conveyance apparatus
A conveyance apparatus includes a platen having a flat supporting surface that supports a conveyor belt, from its inside, being stretched between first and second rollers. The apparatus further...
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7481429 |
Method for the cyclic conveyance of sheets through a printing machine
A method for cyclically conveying sheets through a printing-technological machine adjusts a sheet position with high accuracy. The sheets following one another are in each case held at the front...
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7478806 |
Apparatus for conveying a sheet through a printing machine
An apparatus for conveying sheets through a printing machine allows continuous monitoring of the position of a sheet with regard to a guide element over a long time period. There is provided a...
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7438108 |
Separating and transporting flexible two-dimensional (sheet-like) products
In a method and apparatus to separate and transport flexible two-dimensional products, such as paper sheets having an adhesive, the products are supplied via a product supply stack to a separation...
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7407161 |
Method of and assembly for lapping consecutive sheets of web material
A mechanism for offsetting or overlapping successive sheets of material in an interfolding machine includes a bed roll rotating at a first speed and a retard roll rotating at a slower, second speed...
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7401777 |
Apparatus for supplying a shingled or overlapping sheet stream
The invention relates to a device for supplying a shingled or overlapping sheet stream from a stack of sheets of a sheet feeder to a feed table of a sheet-processing machine with a belt table. The...
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7384036 |
Sheet handling device for wide format sheets
A sheet handling device for wide format sheets including a sheet support plate having a top surface containing suction holes which are connected to at least one suction chamber, the at least one...
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7374167 |
Method and apparatus for controlling the vacuum distribution in an exposer for printing originals
A method and an apparatus for controlling the vacuum distribution in an exposer for recording printing originals. The recording material for the printing originals is held firmly on a supporting...
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7374164 |
Configuration for the transport and simultaneous alignment of sheets
A configuration for the transport and simultaneous alignment of sheets has a straightedge, at least one conveyor belt disposed slightly at an angle to the straightedge in the direction of movement...
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7367560 |
Suction device and method of conveying laminated sheet
A suction device of the present invention includes a suction roller and a vacuum chamber. The suction roller holds an adhesive sheet to its peripheral surface by suction while maintaining contact...
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7328899 |
Device for guiding sheets
An apparatus for fixing a sheet on the surface of an electrically conductive cylinder of a printing machine for processing sheets, in particular, a sheet-fed offset printing machine. The apparatus...
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7300051 |
Rippler for a paper deliverer
A rippler may be installed on a paper deliverer used in conjunction with a paper sheeter, in between the vacuum belts of the sheeter. The rippler includes an upwardly projecting ridge, causing...
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7293770 |
Sheet-transporting device having a suction belt module with a blower
A device for transporting sheets to a sheet processing machine includes a feed table, and at least one suction belt endlessly revolvable over the feed table. The suction belt is subjectible to...
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7287750 |
Machine for processing printing material sheets, in particular sheet-fed printing press, and method of operating the machine
A machine for processing printing material sheets, in particular a sheet-fed printing press, has a sheet transport drum for transporting the printing material sheets and at least one sheet...
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7219890 |
Valve system for the count roll of an interfolding machine
An interfolding machine includes an assembly for and method of separating overlapped sheets of material at a desired sheet count. The assembly includes a vacuum assembly with a manifold having a...
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7207558 |
Apparatus for the transport of sheets
A conveying apparatus for transporting sheets to a sheet processing machine, in particular a printing press, has a suction belt table between a sheet in-feed and the sheet-processing machine. A...
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7198267 |
Sheet processing machine with a sheet decurler
A sheet-processing machine, such as a rotary press, has normally closed grippers that circulate during operation. The grippers transport the sheets along a conveying section and guide the sheets at...
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7182334 |
Air diffusing vacuum transport belt
An air diffusing vacuum transport belt including a first perforated layer and a second non-perforated layer is provided for transporting image carrying substrates without vacuum belt induced image...
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7175176 |
Device for feeding suction air or blowing air in a sheet-processing machine
A device for feeding suction air or blowing air to a sheet-retaining device displaceable relative to a machine element in a sheet-processing machine, includes a first air-feeding element...
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7150456 |
Sheet transport drum for a machine processing printing-material sheets
A machine processing printing-material sheets contains a first sheet transport drum and a second sheet transport drum disposed immediately after the first sheet transport drum in a sheet transport...
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7146891 |
Device for transferring two-dimensional products onto a transportation device
A method for segregating and transferring a product from a web of material includes the steps of conveying the web of material between a punching roll and a counter pressure roll, the punching roll...
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7144009 |
Apparatus for transmitting a workpiece
The apparatus for transmitting a workpiece along a press line includes a support frame; a support frame driving unit; a plurality of air pipes; an air flow forming unit; a plurality of rollers; and...
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7125014 |
Device for conveying a stream of sheets from a sheet pile to a sheet-processing machine
A device for conveying an imbricated stream of sheets from a sheet pile to a sheet-processing machine includes a conveying table provided with at least one revolvingly drivable, air-permeable...
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7124686 |
Apparatus for clamping and holding a printing plate on an exposure drum
In the field of electronic reproduction technology, an apparatus for clamping and holding a printing plate on the surface of an exposure drum in a printing plate exposer includes a clamping...
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7121201 |
Printing press folder with air knife
The folder of a printing press includes an air knife assembly to reduce damage to signatures as they travel through the folder and to guide signatures through the folder.
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7111843 |
Sheet-processing machine having a suction air producing device
A sheet-processing machine includes a revolving sheet holding device for aiding in transporting sheets to be processed. A device for producing suction air or air blast has a movable air delivery...
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7014187 |
Vacuum plenum system for facilitating the high-speed conveyance of mail pieces
A new and improved article or mail-piece conveyor system has a vacuum plenum system integrally incorporated therein which effectively withdraws ambient air ahead or downstream of the oncoming...
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7000917 |
Sheet-guiding device in a sheet-processing machine
A sheet-guiding device in a sheet-processing machine, in particular a sheet-fed rotary printing press, includes gripper devices disposed on revolving components of the sheet-processing machine for...
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6997549 |
Media hold down system
A media hold down system includes electrodes configured to create an electric field at a surface and a vacuum source configured to create a vacuum at the surface.
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6983692 |
Printing apparatus with a drum and screen
A printing apparatus includes a drum having a peripheral surface having passageways therein. A screen having apertures therein is placed over the peripheral surface of the drum.
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6969066 |
Passive vacuum transport
An apparatus for improving sheet feeding in a direction of movement to a process station, including: a contact surface having ribs spaced along contact surface in the direction of movement,...
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6910416 |
Suction guidance device for a single-drum turner
In the region of a turner device in a sheet processing machine, a sheet-guiding device is disposed at a great spacing from the turner drum on the other side of a common tangent between a turner...
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6899327 |
Sheet guide apparatus
A sheet guide apparatus comprises gripper devices for holding and transporting a printed sheet, an impression cylinder and a transfer cylinder for holding and transporting the printed sheet...
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6896258 |
Sheet-fed press and intermediate cylinder for sheet-fed press
An intermediate cylinder comprising a main body, and a plurality of suction boxes formed in the main body at positions different with respect to a rotation axis of the main body. The intermediate...
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6883426 |
Printing machine and method for printing a sheet
A printing press for one-sided or two-sided printing of a sheet includes a transfer cylinder disposed in a travel direction of the sheet between a first and a second impression cylinder,...
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6871852 |
Vacuum platen assembly for fluid-ejection device with one or more aerosol-collection recesses
A vacuum platen assembly for a fluid-ejection device of one embodiment of the invention is disclosed that includes a platen that has a number of vacuum holes, and one or more aerosol-collection...
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6851672 |
Sheet transport position and jam monitor
A sheet transport system ( 20 ) comprising at least one sheet transporter ( 30,36 ) that receives and hands off a sheet being transported by the system so as to transport the sheet from a first...
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6834949 |
Device for simultaneously holding by suction and transporting a sheet
A device for holding a sheetlike article on a movable underlying surface for transporting the sheetlike article in at least one direction selected from the group consisting of a direction into and...
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6769684 |
Air turning bar
An air turning bar for a take-off device for plastic films has a hollow cylindrical body having a depression in the region of the bar around which the film is wrapped. The remaining region of the...
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6746015 |
Transport device for flat goods, especially paper
A transport device for transporting flat goods has at least one transport belt having longitudinal edges and a transport area. At least one vacuum device and at least one guide with sidewalls are...
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6739252 |
Method and apparatus for reversing sheet material in sheet-processing machines
A method and an apparatus for reversing sheet material in a sheet-processing machine having at least two printing units, a reversing drum with a gripper system, and an impression cylinder that can...
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6705610 |
Arrangement for sheet holder systems on storage drums in turning devices of sheet-fed printing machines
The invention relates to an arrangement of sheet-holding systems at storage drums in turning devices of sheet-fed printing machines. It is an object of the invention to provide an arrangement of...
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6702283 |
Device for decurling flat printing materials
A device for decurling flat printing materials for a machine for processing the printing materials has a guide surface section whereover the printing materials are drawable. The guide surface...
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6688594 |
Suction roll
A suction roller is used to transport aligned sheets in a sheet processing machine. A portion of the circumferential surface of the roller has suction ports. A drive motor is provided for the...
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