Patents by Inventor Peter Forch
Peter Forch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7891650Abstract: An apparatus for the removal of proof sheets from a sheet-processing machine has at least one sheet catcher provided with a gripper device. The gripper draws the sheet out of the stacking region. A lower sheet catcher is first moved into the stacking region above the sheet stack. Following a deposition of at least one proof sheet, the sheet is gripped with the gripper device, and following sheets are held back with an upper sheet catcher. Then the proof sheet is drawn out of the stacking region by moving the lower sheet catcher and the gripper device back.Type: GrantFiled: March 7, 2008Date of Patent: February 22, 2011Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer, Paul Nicola, Marius Stelter, Ralf Wadlinger
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Patent number: 7823881Abstract: A method of depositing sheets coming out of a sheet-processing machine includes decelerating the sheets and depositing the sheets of a main pile. Certain sheets are decelerated and fed to a second sheet pile. The system includes a device for decelerating the sheets arriving from the sheet-processing machine and for depositing the sheets on a main pile. A chain gripper system is configured to hold and decelerate a trailing edge of the sheets. The chain gripper system includes an adjustable gripper opening cam.Type: GrantFiled: July 16, 2007Date of Patent: November 2, 2010Assignee: Heidelberger Druckmaschinen AGInventors: Andreas Böttger, Andreas Detmers, Peter Förch, Edmund Klein, Oliver Lang, Sven Lippardt, Markus Möhringer, Patrick Roth
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Patent number: 7726651Abstract: An apparatus for ejecting sheets from a sheet transport path onto an auxiliary stack disposed upstream of a main stack, includes a planar sheet guide surface having a sheet ejection opening formed therein. The sheet ejection opening is closed by a sheet separating element and a flap, in a closed state. The separating element and the flap also serve as guide elements during the ejection of sheets.Type: GrantFiled: February 14, 2008Date of Patent: June 1, 2010Assignee: Heidelberger Druckmaschinen AGInventors: Andreas Böttger, Andreas Detmers, Peter Förch, Edmund Klein, Oliver Lang, Sven Lippardt, Markus Möhringer, Patrick Roth
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Patent number: 7631863Abstract: A sheet-processing machine, in particular a rotary press, has a first gripper system for transporting sheets onto a sheet stack and a second gripper system following the former for accepting selected sheets from the first gripper system. The second gripper system is oriented substantially vertically and it has a drive that can be actuated separately and independently from the first gripper system.Type: GrantFiled: January 26, 2006Date of Patent: December 15, 2009Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer, Paul Nicola
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Patent number: 7578502Abstract: A sheet delivery for a press has a linear guide in which a single holding crossmember (e.g., a gripper bar) is mounted such that it can be moved to and fro periodically. The holding crossmember is mounted in a further linear guide such that it can be moved to and fro periodically along the further linear guide axis as well. The axes of the linear guides are aligned at an angle to each other.Type: GrantFiled: September 20, 2004Date of Patent: August 25, 2009Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer, Stefan Mutschall, Paul Nicola, Marius Stelter
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Patent number: 7448625Abstract: Sheets are conveyed through a printing machine with improved reliability of the suction grippers. The apparatus for conveying a sheet through a printing machine has a cylinder with grippers in a channel for holding the sheet at its leading edge, circulating grippers for holding and for transferring the sheet from the cylinder at its leading edge, and circulating, radially positionable suction grippers for holding the sheet at its trailing edge. An actuating apparatus opens and closes the grippers and controls vacuum for the suction grippers. A drive for the cylinder and circulating grippers and suction grippers. A control device switches on and off the sheet feed to the cylinder. The suction grippers can be moved in the radial direction into a rest position when the sheet feed is switched off.Type: GrantFiled: August 30, 2005Date of Patent: November 11, 2008Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Daniel Gronych, Markus Möhringer, Paul Nicola, Marius Stelter, Ralf Wadlinger
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Patent number: 7427064Abstract: A machine for processing a sheet of printing material contains a first chain conveyor having a first gripper bar for holding a leading edge of the sheet, and a second chain conveyor having a rear gripper bar for simultaneously holding a trailing end of the sheet. A processing device is assigned to the chain conveyors for processing the sheet. A distance changing device is provided for temporarily reducing a gripper distance between the two gripper bars and, consequently, producing a sheet sag required for the processing of the sheet carried out by the processing device. The distance changing device defines a first circulation path of the front gripper bar, determined by the first chain conveyor, and a second circulation path of the rear gripper bar, determined by the second chain conveyor, running locally differently from each other. The processing device can be, for example, a sheet smoother.Type: GrantFiled: July 27, 2005Date of Patent: September 23, 2008Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer, Stefan Mutschall, Paul Nicola, Marius Stelter, Ralf Wadlinger
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Publication number: 20080217836Abstract: An apparatus for the removal of proof sheets from a sheet-processing machine has at least one sheet catcher provided with a gripper device. The gripper draws the sheet out of the stacking region. A lower sheet catcher is first moved into the stacking region above the sheet stack. Following a deposition of at least one proof sheet, the sheet is gripped with the gripper device, and following sheets are held back with an upper sheet catcher. Then the proof sheet is drawn out of the stacking region by moving the lower sheet catcher and the gripper device back.Type: ApplicationFiled: March 7, 2008Publication date: September 11, 2008Applicant: HEIDELBERGER DRUCKMASCHINEN AGInventors: Peter Forch, Markus Mohringer, Paul Nicola, Marius Stelter, Ralf Wadlinger
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Publication number: 20080191414Abstract: An apparatus for ejecting sheets from a sheet transport path onto an auxiliary stack disposed upstream of a main stack, includes a planar sheet guide surface having a sheet ejection opening formed therein. The sheet ejection opening is closed by a sheet separating element and a flap, in a closed state. The separating element and the flap also serve as guide elements during the ejection of sheets.Type: ApplicationFiled: February 14, 2008Publication date: August 14, 2008Applicant: HEIDELBERGER DRUCKMASCHINEN AGInventors: Andreas Bottger, Andreas Detmers, Peter Forch, Edmund Klein, Oliver Lang, Sven Lippardt, Markus Mohringer, Patrick Roth
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Patent number: 7367558Abstract: A machine for processing printing material sheets has a signal generator for position monitoring and a sheet delivery. The sheet delivery has a first conveying device, for example with a holding crossmember, for leading sheet ends and a second conveying device, for example with a holding crossmember, for trailing sheet ends. The signal generator is disposed in the sheet delivery.Type: GrantFiled: September 24, 2004Date of Patent: May 6, 2008Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer, Paul Nicola, Marius Stelter
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Patent number: 7334790Abstract: Sheets are conveyed through a rotary press with linear travel grippers. The novel conveying apparatus prevents collisions between the grippers and printing unit cylinders. The grippers are fixed to circulating links to convey a sheet through a nip between two cylinders that interact during printing. The links and the cylinders are coupled to drives that can be activated separately. In each case a collision disk is mounted on a shaft journal of at least one cylinder. A slip clutch is provided between the collision disk and the cylinder. A braking element is coupled to the grippers which, in the event of non-synchronous running with the cylinder, runs onto the collision disk and prevents the collision disk from moving.Type: GrantFiled: October 21, 2005Date of Patent: February 26, 2008Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer
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Publication number: 20080012217Abstract: A method of depositing sheets coming out of a sheet-processing machine includes decelerating the sheets and depositing the sheets of a main pile. Certain sheets are decelerated and fed to a second sheet pile. The system includes a device for decelerating the sheets arriving from the sheet-processing machine and for depositing the sheets on a main pile. A chain gripper system is configured to hold and decelerate a trailing edge of the sheets. The chain gripper system includes an adjustable gripper opening cam.Type: ApplicationFiled: July 16, 2007Publication date: January 17, 2008Inventors: Andreas Bottger, Andreas Detmers, Peter Forch, Edmund Klein, Oliver Lang, Sven Lippardt, Markus Mohringer, Patrick Roth
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Patent number: 7261291Abstract: A sheet-processing machine contains at least one processing station in the form of a printing unit, and a delivery with an endless conveyor and after-grippers that are guided by a mechanism connected to a drive. The after-grippers take over the processed sheets from the endless conveyor and release them over a stack. The sheet-processing machine provides for it to be possible for the mechanism to be set to positions that are correlated with different formats of the processed sheets, and for the drive that actuates the mechanism to keep the mechanism at one and the same phase angle with respect to the printing unit in each of the positions. Therefore, even in the event of different formats of the processed sheets, user-friendly placing of the stack is possible.Type: GrantFiled: October 27, 2003Date of Patent: August 28, 2007Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer, Paul Nicola
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Patent number: 7234395Abstract: 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 its leading edge from the cylinder and for holding the sheet at its trailing edge, and rotating sprockets carrying the chains. An actuating device is provided for opening and closing the grippers, and a drive is provided for the cylinder and the sprockets. Gripper pads and gripper tips for the trailing-edge grippers, in opened condition of the grippers, are able to run past the cylinder. The gripper pads and tips lie underneath a path described by the sheet. The trailing-edge grippers are closable in a rotational angle region wherein the chains run off the sprockets for the cylinder.Type: GrantFiled: December 10, 2004Date of Patent: June 26, 2007Assignee: Heidelberger Druckmaschien AGInventors: Peter Förch, Markus Möhringer, Paul Nicola, Marius Stelter
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Patent number: 7232123Abstract: An apparatus for conveying sheets from a printing machine to a stack has highly rigid gripper bars that can be produced with relatively little expense, and the gripper assembly permits great flexibility in the use of the apparatus. The apparatus has at least one gripper bar carrying one or more grippers which, during the conveyance, holds a sheet at its edge between a gripper finger and a gripper pad. Endless chains move the gripper bar on a path between a cylinder belonging to the machine and the stack. An actuating mechanism opens and closes the gripper as a sheet is picked up from the cylinder and as it is allowed to fall onto the stack. In the opened state, the gripper finger is located below a path described by the upper edge of the gripper pad.Type: GrantFiled: September 24, 2004Date of Patent: June 19, 2007Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Markus Möhringer, Paul Nicola
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Patent number: 7198267Abstract: 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 their leading and trailing edges. The conveying section is assigned a sheet decurler and a sheet guide device that follows the latter in the conveying direction. The conveying section further has a gripper opener assigned thereto for opening the trailing edge grippers carrying the trailing edges of the sheets in order to decurl the sheets. After the sheets have traversed the decurler and decurling has been carried out, the trailing edges are once more grasped with the trailing edge grippers for renewed positive guidance.Type: GrantFiled: February 19, 2004Date of Patent: April 3, 2007Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Sven Kerpe, Markus Möhringer, Paul Nicola
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Patent number: 7156021Abstract: 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 sheets onto the cylinder. The supporting segments are mounted such that they can be pivoted as desired into an active position and into a passive position about pivot axes that are skewed relative to the sheet support axis of rotation or about rotary joints determining the pivot axes.Type: GrantFiled: February 28, 2005Date of Patent: January 2, 2007Assignee: Heidelberger Druckmaschinen AGInventors: Peter Förch, Alexander Klee, Markus Möhringer, Stefan Mutschall, Paul Nicola, Marius Stelter
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Publication number: 20060288892Abstract: A method and a device for feeding sheets to a sheet-processing machine, especially a printing press, includes gripping a moving sheet at a sheet edge with grippers and determining a sheet location in a gripper bite. Upon deviation from a nominal or desired location, a correction of the sheet location in or opposite to a transport direction is performed transversely and obliquely thereto, and the sheet is transferred acceleratedly to a rotating advancing system.Type: ApplicationFiled: June 28, 2006Publication date: December 28, 2006Inventors: Peter Forch, Markus Mohringer, Burkhard Wolf, Darko Zimbakov
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Publication number: 20060181002Abstract: Sheets are conveyed through a rotary press with linear travel grippers. The novel conveying apparatus prevents collisions between the grippers and printing unit cylinders. The grippers are fixed to circulating links to convey a sheet through a nip between two cylinders that interact during printing. The links and the cylinders are coupled to drives that can be activated separately. In each case a collision disk is mounted on a shaft journal of at least one cylinder. A slip clutch is provided between the collision disk and the cylinder. A braking element is coupled to the grippers which, in the event of non-synchronous running with the cylinder, runs onto the collision disk and prevents the collision disk from moving.Type: ApplicationFiled: October 21, 2005Publication date: August 17, 2006Inventors: Peter Forch, Markus Mohringer
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Publication number: 20060163800Abstract: A sheet-processing machine, in particular a rotary press, has a first gripper system for transporting sheets onto a sheet stack and a second gripper system following the former for accepting selected sheets from the first gripper system. The second gripper system is oriented substantially vertically and it has a drive that can be actuated separately and independently from the first gripper system.Type: ApplicationFiled: January 26, 2006Publication date: July 27, 2006Inventors: Peter Forch, Markus Mohringer, Paul Nicola