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| Number | Title | Issue Date |
| 7918162 | Apparatus for transporting sheets with a gripper device An apparatus for transporting sheets to or in a sheet-processing machine includes a gripper device having at least one gripper with a gripper housing and a gripper pad. The gripper is actuatable by a pivoting movement of a gripper shaft. The gripper housing and the ... | 04/05/2011 |
| 7849795 | Apparatus for adjusting gripper-base height of sheet-fed printing press The present invention aims at full-automatic adjustment apparatus for gripper-base height in regularly engaging condition without clutch means. Apparatus according to the invention comprises operation shaft 28 which is co-centered with cylinder axis | 12/14/2010 |
| 7640855 | Clamping device for a printing plate Disclosed is a clamping device (02) for fastening a plate (03) to the periphery of a cylinder (01). Said clamping device (02) comprises a first clamping element (04), a pivotally mounted second clamping element (06), a sprin... | 01/05/2010 |
| 7628109 | Image transfer mechanism A mechanism for transferring an image from a first surface to printing media comprising: an impression member having an impression surface; printing media grippers associated with said impression surface adapted fo... | 12/08/2009 |
| 7490546 | Image recording apparatus To record images accurately regardless of rigidity and size of a recording medium, each rear end clamp has a clamp rubber element for engaging a variable margin of the recording medium mounted peripherally of the recording drum. The margin is varied according to the... | 02/17/2009 |
| 7412927 | Printing machine with gripper retraction mechanism for safe operation of the printing machine A process provides for the safe operation of a printing machine. The printing machine has a first cylinder driven by a first motor, and a second cylinder driven by a second motor. The first cylinder accepts sheets of paper from the second cylinder or delivers them t... | 08/19/2008 |
| 7404357 | Device for pressing on a flexible printing form when it is being pulled onto a form cylinder of an offset printing press A device for pressing on a flexible printing form when it is being pulled onto a form cylinder of an offset printing press. The device makes it possible to use an offset cylinder which is not in phase. The device for pressing on a flexible printing form when it is b... | 07/29/2008 |
| 7370580 | Control roller having speed-dependent pressing force In an apparatus for adapting the pressing force of a control roller on a control can in a sheet-processing machine by a torsion spring, the apparatus either changes the effective spring length or the spring stiffness as a function of the rotational speed of the shee... | 05/13/2008 |
| 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 with the film surface of the adhesive sheet, and conveying the adhesiv... | 05/06/2008 |
| 7367264 | Method and apparatus for treating sheets including a vacuum roller for retaining sheets in curved configuration An apparatus and method for retaining individual sheets of substrate in a curved configuration during coating or printing is disclosed. ... | 05/06/2008 |
| 7363857 | Cylindrical outer surface scanning apparatus Depending on the lateral width thereof, an image recording material P is stably positioned on a recording drum, employing two positioning pins with an appropriate pitch therebetween. Non-contacting portions prevent any irrelevant positioning pins from coming into co... | 04/29/2008 |
| 7329221 | Assembly for and method of gripping sheets of material in an interfolder A folding machine includes a first folding roll with a series of the gripper assemblies and a series of tucker assemblies uniformly and alternately spaced to interact with a series of gripper and tucker assemblies of an adjacent second folding roll. The series of al... | 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 |
| 7320281 | Method of varying a drum profile of a vario drum and vario drum for implementing the method A method of varying a drum profile of a vario drum for transporting printing material sheets, in which shell segments of the vario drum are pivoted inward and outward. Sheet supporting elements assigned to the shell segments are reversibly deformed by pivoting the s... | 01/22/2008 |
| 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 |
| 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 |
| 7165492 | Method and apparatus to clamp and release flexible plates onto an imaging cylinder A clamping device, a cylinder including a clamping device, and a method for clamping a plate onto the outer surface of the cylinder. The clamping device includes a base body extending in the axial direction and fixed to, or incorporated into the cylinder. The clampi... | 01/23/2007 |
| 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 |
| 7152528 | Digital printing machine The invention concerns a digital printing machine for sheet printing with a digital printing mechanism with free format in the peripheral direction, an intermediate cylinder which is connected downstream of the digital printing mechanism and is at least partially co... | 12/26/2006 |
| 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 direction. The first sheet transport drum has gripper systems which d... | 12/19/2006 |
| 7146911 | Image recorder Positioning of a printing plate in an image recorder is performed by the same method used for punching positioning holes for printing press in the printing plate. Specifically, the positioning for image recording is performed with reference to an edge of the printin... | 12/12/2006 |
| 7146907 | Bearing support system for a printing press having cantilevered cylinders A bearing assembly for use on a printing press is disclosed. A printing press includes a support frame. A shaft having a first end and a second end fixedly attached to the support frame, the shaft arranged to define a longitudinal axis relative to the support frame.... | 12/12/2006 |
| 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 apparatus for the front edge of the printing plate. The clamping apparatus h... | 10/24/2006 |
| 7121202 | Imaging apparatus and imaging method to increase efficiency of mounting/demounting of a recording material to/from a recording drum A plate is consecutively mounted on the outer peripheral surface of a recording drum under pressure from a squeegee roller, with its leading edge clamped by leading edge clamps. Guide members for causing the squeegee roller to climb up thereon are provided on the ou... | 10/17/2006 |
| 7118104 | Gripper system for a machine which processes printing material sheets A gripper system for a machine that processes printing material sheets has a gripper with a first clamping surface and a gripper pad, for cooperating with the gripper, with a second clamping surface. One of the two clamping surfaces is formed with a surface relief. ... | 10/10/2006 |
| 7115088 | Folder cylinder with support plate A folding cylinder includes a plurality of gripping devices supported on a first rotatable support with a first gripping device for holding a signature on the cylinder. A plurality of tucking devices are supported on a second rotatable support, the tucking devices i... | 10/03/2006 |
| 7107904 | Liquid feeder including impression cylinder having gripper unit and cover member Gap guards are attached to a notch of an impression cylinder in such a manner as to allow grippers to project from inside the notch, and have respective guide surfaces. The guide surfaces extend between a circumferentially first end portion and a second end portion ... | 09/19/2006 |
| 7101037 | Image recording device An image recording device includes plural retaining units each of which retains a recording medium on circumference thereof, a printing head that forms an image on the recording medium, a loop unit that retains the plural retaining units on a closed path, a first dr... | 09/05/2006 |
| 7073438 | Image forming apparatus including rotary drum and detachably mounted chuck A fixing structure comprises a rotary drum having an outer peripheral surface, around which a printing plate is wound, and an inner peripheral surface portion, the drum including through-slots formed in the outer surface at predetermined intervals in the peripheral ... | 07/11/2006 |
| 7036413 | Device for the transverse cutting of at least one web in a folding apparatus A printed, endless web is transversely cut by the cooperation of a cutting blade cylinder and a sheet gripping cylinder that also carries cutting blocks. If the web that is to be cut, is noted as having a defect, for example in the printing applied to it, the cuttin... | 05/02/2006 |
| 7036431 | Identification devices and methods for producing the identification devices Identification devices and methods of producing the identification devices are presented. Some embodiments of identification devices comprise a structure having a micro-optic image and a layer that is overprinted onto the surface of the structure. In some embodiment... | 05/02/2006 |
| 7017491 | Printing apparatus having plate discharge mechanism with air blowing unit A plate discharger includes a peeling claw, a transport device and an air blowing device. The transport device has a rotary shaft, first transport rollers rotatable about the rotary shaft, a driven rotary shaft connected to a drive gear meshed with and driven by a t... | 03/28/2006 |
| 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 |
| 6994027 | Device and method to prevent movement of a printing plate during clamping A device and method prevents movement of a printing plate during clamping of an end of the plate to an external drum of an imaging system using a clamping apparatus having: a clamping portion disposed on the external drum, wherein the clamping portion may be selecti... | 02/07/2006 |
| 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. ... | 01/10/2006 |
| 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 |
| 6955123 | Printing machine with equilibrium or equalization of moments or torques A printing machine having at least one roller and at least a first and a second functional element for executing cyclic movements synchronized with a rotational movement of the roller and driven, together with the roller, by a drive unit, includes spring elements, r... | 10/18/2005 |
| 6920823 | Photosensitive device, image forming apparatus and method for forming images A photosensitive device has a cylinder, a photosensitive sheet slidably wrapping outer surface of the cylinder, and a feeding roller in the cylinder. The feeding roller feeds the photosensitive sheet to the outer surface of the cylinder sequentially. The photosensit... | 07/26/2005 |
