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| Number | Title | Issue Date |
| 7849794 | Device for transporting sheets in straight printing or perfecting operation by way of tongs grippers A device for transporting sheets in recto or verso printing operation has tongs grippers each with upper and lower grippers. The upper gripper, or rigid gripper, that forms the gripper pad can be locked directly or indirectly in recto printing operation. ... | 12/14/2010 |
| 7412925 | Device for changing over gripper control in a turning configuration of a sheet-processing machine In a device for changing over a gripper control in a turning configuration of a sheet-processing machine, there is provided a slide to be guided axially displaceably by radial stops. The device changes over a gripper control from recto printing to verso printing on ... | 08/19/2008 |
| 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 includes an electrode that extends over the width of the cylinder for... | 02/12/2008 |
| 7325493 | Sheet-fed rotary printing press having a three-drum reversing device and method of transporting a sheet through a three-drum reversing device A sheet-fed rotary printing press for selective recto printing and recto and verso printing includes a three-drum reversing device having three cylinders cooperatively disposed behind one another between respective impression cylinders of two adjacent printing units... | 02/05/2008 |
| 7325494 | Sheet convey apparatus for sheet-fed offset rotary printing press with convertible press mechanism A sheet convey apparatus for a sheet-fed offset rotary printing press with a convertible mechanism includes a gripper device and a gripper pad shaft. The gripper device swings between a first position to receive a sheet from a chucking cylinder on an upstream side i... | 02/05/2008 |
| 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 supporting element. The sheet supporting element, which is formed with a shee... | 10/30/2007 |
| 7284482 | Sheet-fed offset rotary printing press with convertible press mechanism A sheet-fed offset rotary printing press with a convertible press mechanism includes a chucking cylinder, convertible cylinder, grippers, and air nozzles and blowing ports. The chucking cylinder conveys a sheet by holding its leading edge. The convertible cylinder i... | 10/23/2007 |
| 7234395 | Device for conveying a sheet through a printing machine A device for conveying a sheet through a printing machine includes a cylinder, formed with a channel wherein grippers are disposed for holding the sheet at a leading edge, a chain conveyor with grippers fixed to endless chains for holding and picking up the sheet at... | 06/26/2007 |
| 7228799 | Moving member fixing apparatus A moving member fixing apparatus includes a stationary gear, rotary gear, press member, and first and second flat inclined surfaces. The rotary gear is movably provided to the stationary gear. The press member presses the rotary gear to fix the rotary gear to the st... | 06/12/2007 |
| 7219764 | Exhaust muffler A muffler may comprise a casing having an internal volume, an inlet and an outlet, and a diverter plate dividing the internal volume into a first chamber and a second chamber. The diverter plate may comprise a baffle wall portion and at least one diverter having a d... | 05/22/2007 |
| 7207265 | Devices for turning sheets in a sheet-fed rotary printing machine Devices for turning sheets in a rotary printing machine are described. The devices have a storage drum for handling sheets, which are each held by a holding device, and a turning drum is disposed downstream of the storage drum and has a holding device for engaging a... | 04/24/2007 |
| 7156021 | Machine for processing sheets of printing material A machine for processing sheets of printing material has a cylinder for transporting the sheets and sheet supports which are mounted such that they can be rotated about a sheet support axis of rotation and in each case contain supporting segments for pressing the sh... | 01/02/2007 |
| 7150225 | Moving member fixing apparatus A moving member fixing apparatus includes a stationary cam, moving cam, printing press motor, drive connecting/disconnecting mechanism, fixing/releasing device, and air cylinder. The moving cam is movable with respect to the stationary cam. The printing press motor ... | 12/19/2006 |
| 7130574 | Image forming device with multimode duplexer An image forming device in a color printer or the like includes duplex printing. Multiple media sheets are moved through a media path which includes a primary path and a duplex path. Various parameters of the image forming device control the interpage gap between sh... | 10/31/2006 |
| 7104194 | Cylinder apparatus with a circumferentially movable operating member and swingable levers to fix and release operating member in a selected position A cylinder apparatus includes a cylinder body, support member, shaft, coned disc spring, air cylinder, and levers. The cylinder body is rotatably supported by a pair of frames. The support member is supported to be movable in a circumferential direction with respect... | 09/12/2006 |
| 7036654 | Conveyor for changing the angular orientation of conveyed articles A conveyor includes elongated and curved first and second structural beams. Each beam includes a plurality of support tabs projecting outwardly therefrom in opposite directions and the tabs support a corresponding endless belt along the entire length thereof. The tw... | 05/02/2006 |
| 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 guiding the sheets to be printed on an air cushion formed by blast ai... | 02/21/2006 |
| 7000540 | Method of operating a machine processing printing material sheets In a method of operating a machine processing printing material sheets and having a sheet transport drum in various operating modes, drum circumferential shells are kept fixed on the sheet transport drum in an outer position in a first of the operating modes and in ... | 02/21/2006 |
| 6976427 | Gripper system In a gripper system having grippers disposed in a row and interspaces between the grippers and hold-downs for holding down in each case a free edge of a printing material sheet gripped by the grippers, the hold-downs being disposed to project into the interspaces an... | 12/20/2005 |
| 6971280 | Cam mechanism on a folding cylinder A cam mechanism for a folding cylinder or gripping cylinder of a printing machine have a cam disk assembly with two cam disks located adjacent to one another. The cam mechanism has good kinematic properties and is subject to low wear, the outer casing of the cam rol... | 12/06/2005 |
| 6947701 | Image forming apparatus and image forming method There is provided an image forming apparatus that can suppress the formation of creases when forming images on both surfaces of a sheet and can greatly reduce the incidence of unprinted areas. The image forming apparatus has a sheet stacking section in which sheets ... | 09/20/2005 |
| 6912952 | Duplex printing system Apparatus for duplex printing comprising: a first impression roller (24) on which a first side of a sheet (22) having a leading edge and a trailing edge is printed referenced to the leading edge; a second impression roller (26) on which a second... | 07/05/2005 |
| 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 drum and a transfer drum. ... | 06/28/2005 |
| 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 received from the gripper device, and a first guide device for guiding the p... | 05/31/2005 |
| 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, respectively, of two printing units, and a sheet support assigned to the transf... | 04/26/2005 |
| 6857364 | Clutch for drive elements of a printing machine A device for locking, with respect to a first power transmission element, a further power transmission element that is lockable in a rotational position thereof, provides for the first and the further power transmission element to have a common working chamber with ... | 02/22/2005 |
| 6851361 | Reversing or turning assembly of a sheet-processing machine A reversing or turning assembly of a sheet-processing machine includes an impression cylinder having a circumferential surface for transporting sheets thereon for printing the sheets in a printing nip associated with the impression cylinder. Gripper devices are prov... | 02/08/2005 |
| 6851360 | Satellite-type printing press Sheet-fed printing press, especially a satellite-type printing press by which double-side printing is performed with a single satellite-type press and if only single-side printing is required a sheet perfecting apparatus does not intervene in the sheet transfer path... | 02/08/2005 |
| 6848363 | Device for changing the operating state of a gripper-control device in a sheet-reversing device of a sheet-processing machine and sheet-processing machine having the device A device for changing an operating state of a gripper-control device in a sheet-reversing device of a sheet-processing machine including a cylinder having an actuating shaft accommodated therein, includes an activating element cooperatively engaging with the actuati... | 02/01/2005 |
| 6840170 | Device for torque compensation in a sheet-processing machine and reversing drum having a torque compensation device A device for torque compensation in a sheet-processing machine includes a cam-controlled compensating mechanism having an energy storage device for exerting a force, a cam disk, and a cam follower to be thrown onto the cam disk by action of the force from the energy... | 01/11/2005 |
| 6836641 | Image forming apparatus and image forming method There is provided an image forming apparatus that can suppress the formation of creases when forming images on both surfaces of a sheet and can greatly reduce the incidence of unprinted areas. The image forming apparatus has a sheet stacking section in which sheets ... | 12/28/2004 |
| 6814004 | Face-to-face printing within booklet Method for printing pages within a booklet to improve the appearance of images on opposing pages includes sequencing images such that opposing pages are printed with the same print engine and/or fused the same number of times. Booklets include opposing pages having ... | 11/09/2004 |
| 6786149 | High speed continuous feed printing system A CF printing system includes at least three CF printing devices; a plurality of print-related devices to effect duplex printing; the printing and print-related devices being selectably operable in accordance with a defined print line segment; and a print line manag... | 09/07/2004 |
| 6764236 | Sheet guide device and image forming apparatus A sheet guide device, which includes: a branch-off sheet guide path that is branched off from a sheet guide path that guides a sheet; a guide member that is rotatably disposed in a branch-off portion of the branch-off sheet guide path and selectively guides the shee... | 07/20/2004 |
| 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 be operated as a storage drum in perfecting mode and to which a furth... | 05/25/2004 |
| 6729233 | Sheet guide device in a rotary printing machine A sheet guide apparatus for use in a rotary printing press which is adapted for the smear and mark free transfer of sheets between two sheet holding and transfer systems, such as a pair of sheet-carrying cylinders or a sheet-carrying cylinder and circulating sheet c... | 05/04/2004 |
| 6722276 | Devices for turning sheets in a sheet-fed rotary printing machine Devices for turning sheets in a rotary printing machine are described. The devices have a storage drum for handling sheets, which are each held by a holding device, and a turning drum is disposed downstream of the storage drum and has a holding device for engaging a... | 04/20/2004 |
| 6718908 | Coating machine for upgrading sheet material A coating machine for applying a flowable coating substance to a sheet material to improve its surface. The coating machine has a series construction which lends itself to easy modification and versatile use. The coating machine includes, in a sheet conveyance direc... | 04/13/2004 |
| 6705227 | Recto and verso printing press having upper and lower grippers and gripper pad with common center line A recto and verso printing press, comprising an upper gripper and a lower gripper, respectively, centrally pivotable with respect to an introduction of force, said upper gripper, in recto printing position thereof, being cooperable with a gripper pad fixed to a cyli... | 03/16/2004 |
| 6705221 | Device for turning or reversing flat copies in half-revolution sheet-processing machines In a sheet-processing rotary printing machine operatable in recto printing and recto/verso printing modes, there is provided a device for reversing sheets, which includes a transfer drum bounded by two sheet-guiding cylinders, a reversing/storage drum and an additio... | 03/16/2004 |
