Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7347143 | Air blowing device for printing press An air blowing device for a printing press includes a plate cylinder, blanket cylinder, impression cylinder, air blowing equipment, air suction equipment, and cover. The plate cylinder is rotatably supported. Ink from an inking device and dampening water from a damp... | 03/25/2008 |
| 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 paper passing over it to develop a ripple, thereby increasing the rigidit... | 11/27/2007 |
| 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 element accommodated on the revolving sheet holding device. An actuatin... | 09/26/2006 |
| 7104195 | Packing for a sheet-guiding cylinder in a processing machine A printing and/or varnishing machine having a plurality of sheet-guiding cylinders in which at least one of the cylinders has an outer detachable packing which has enhanced ink repellent characteristics and which significantly reduces wear. The packing has a layered... | 09/12/2006 |
| 7080948 | Paper ejecting mechanism and ink-jet printer having the paper ejecting mechanism A paper ejecting mechanism and an ink-jet printer having the paper ejecting mechanism. The paper ejecting mechanism includes an ejecting roller and a star wheel which eject a sheet of paper printed by a printhead into an output tray, and a paper stand installed unde... | 07/25/2006 |
| 7055430 | Machine for sheet-fed rotary printing or sheet coating A machine for sheet-fed rotary printing or sheet coating has a sheet gripper system, an upstream feed system, and an upstream feeder. A surface refinement station for the sheet is disposed downstream of the feeder and upstream of a transfer of the sheet to the sheet... | 06/06/2006 |
| 7048011 | Printing press cylinder flexible jacket covering A flexible jacket covering for a printing press transfer cylinder having a low density selvage for attaching one edge of the jacket to a hook and loop attachment strip on the transfer cylinder. The covering is cut from fabric woven on a shuttleless loom. The fabric ... | 05/23/2006 |
| 6983696 | Apparatus for cooling material to be printed and printing units at sheet fed printing machines with cooled compressed air The present invention relates to an apparatus for cooling material to be printed and printing machine elements at sheet-fed rotary printing machines by means of cooled compressed air. It is an object of the present invention to provide an apparatus which requires li... | 01/10/2006 |
| 6939430 | Method of bonding, a bonded structure and a use of Xylan The present invention relates in a first aspect to (with reference to FIG. 1) a method of bonding together first (10) and second (12) components with an adhesive (13) in which Xylan (11) is applied to a surface of at least one (... | 09/06/2005 |
| 6936111 | Method and device for washing a rubber blanket During a washing cycle of a rubber blanket on a blanket cylinder some revolutions of the blanket cylinder are initially performed during which the cleaning element is lifted off the blanket cylinder temporarily when the clamping channel passes under the cleaning ele... | 08/30/2005 |
| 6877247 | Power saving automatic zoned dryer apparatus and method A computer controlled power saving automatic zoned dryer for a printing press has a dryer head facing the substrate travel path, having a multiplicity of IR lamps connected individually or in groups to form a plurality of heating zones running longitudinally and eac... | 04/12/2005 |
| 6761110 | Method for interleaving sheets A method by which stacks of printed sheets can be formed and, at the same time, the risk of soiling of the stacked sheets can be reduced to the maximum extent. To this end a printing machine is proposed, in particular a sheet-fed printing machine, into which unprint... | 07/13/2004 |
| 6739254 | Supporting or guiding device for sheets in a sheet processing machine, particularly a printing press A supporting or guiding device for sheets in a sheet processing machine includes a supporting or guiding layer having a supporting or guiding surface formed with a plurality of outlet openings for applying a throttled air flow therethrough to a respective sheet. A c... | 05/25/2004 |
| 6722278 | Sheet-fed rotary printing press A printing press includes first and second impression cylinders and a varnish supply unit. The first impression cylinder has a gripper unit for holding a sheet-like object, and is rotatably supported. The varnish supply unit supplies varnish to the sheet-like object... | 04/20/2004 |
| 6701841 | Sheet discharge unit A sheet discharge unit has a transfer passage 3 for transferring a sheet of printed paper 2 toward a sheet receiving tray 20, and a pair of left and right jump wings 11, 11 located at both sides of the transfer passage 3 and moveable between a guide posit... | 03/09/2004 |
| 6626429 | Method of setting guide elements for a flat material on the basis of printed-image information A method of setting guide elements for a flat material along a printing-material conveying path in a rotary printing machine includes determining a job-specifically optimized actuating position for a positioning of sheet-guiding elements and of sheet-conv... | 09/30/2003 |
| 6401611 | Delivery of a sheet-processing machine A delivery of a sheet-processing machine having gripper rows for drawing sheets, during operation, along a conveying section having endless conveying chains bearing the gripper rows and, during operation, running through the delivery in a revolving direct... | 06/11/2002 |
| 6371044 | Wax coating device for a wet type electrophotographic color printer A wax coating device for a wet type electrophotographic color printer is capable of preventing the coating operation when printed matter is not supposed to be wax-coated. The wax coating device includes: a coating roller rotatably disposed so as to be par... | 04/16/2002 |
| 6203914 | Ink-fouling preventing sheet An ink-fouling preventing sheet which is attached to a feed or delivery cylinder that supports and moves a printed paper in an offset press. The sheet comprises a flexible sheet base; an adhesive layer formed on the base; many small balls partially buried... | 03/20/2001 |
| 6148727 | Wet printed media output management system A printer having a system to manage the output path of wet printed media is disclosed. In such a system, the wet printed media are held for a time before being ejected into an output tray to avoid the smearing of the wet print markings made on the media. ... | 11/21/2000 |
| 6106623 | Printed sheet coating apparatus In order to prevent a coating liquid from scattering outside the surface of a printed sheet, an on-demand coating head having plural jet sections is arranged along a direction parallel to the left and right edges of the printed medium, and jets only liqui... | 08/22/2000 |
| 6089158 | Printing press with delivery including independently mounted sprockets A chain delivery assembly for withdrawing sheets from a rotating cylinder of a sheet-fed offset printing press includes first and second spaced apart sprockets independently mounted for rotation about a common axis which is parallel to the axis of the rot... | 07/18/2000 |
| 6073556 | Method and apparatus for handling printed sheet material A transfer cylinder for supporting freshly printed sheet material between printing units or at the delivery unit of a printing press is provided with an ink repellent, flexible jacket covering for supporting and transporting the sheet material without tra... | 06/13/2000 |
| 6053103 | Sheet-fed printing press having at least one sheet guide drum For changing demands in terms of the support of printed sheets as they are deflected in a sheet-fed printing press, the sheet-fed printing press is equipped with a retrofittable sheet guide drum. The drum includes segments on its face end and which in a f... | 04/25/2000 |
| 6048060 | Printing medium discharge apparatus used in an ink jet printer A printing medium discharge apparatus used for discharging a printing medium from a rotary drum in an ink jet printer for printing a desired image onto the printing medium by an ink jet while holding the printing medium on the rotary drum, includes a prin... | 04/11/2000 |
| 5979318 | Method and apparatus for smear-free guidance of a printed sheet on a sheet-guiding cylinder of a printing press A method for smear-free guidance of a printed sheet on a given sheet-guiding cylinder of a printing press includes taking over a leading edge of the sheet by a gripper device of the given sheet-guiding cylinder from a preceding or up-line sheet-guiding cy... | 11/09/1999 |
| 5964155 | Device for powdering printed products For powdering printed products it is proposed that they be moved through a nip formed by a powder application roller (38) and a support roller (32). Those two rollers have axial circumferential recesses (52, 54) which are each able to receive at least par... | 10/12/1999 |
| 5927203 | Device and method for guiding sheet material in a printing press, particularly in a sheet-fed rotary offset press A device for guiding sheet material in a printing press, the device having a guide surface located below a path in which a sheet is guidable, includes nozzles arranged in zones within the guide surface, the zones including a first zone extending along a l... | 07/27/1999 |
| 5915304 | Device for guiding freshly coated sheets A device for guiding freshly coated sheets utilizes upper and lower air supply chambers which are both connected to a blower through supply conduits and a return conduit. An arrangement of throttle valves is used to connect one of the air supply conduits ... | 06/29/1999 |
| 5907998 | Anti-static, anti-smearing pre-stretched and pressed flat, precision-cut striped flexible coverings for transfer cylinders Freshly printed sheets are transferred from one printing unit to another by transfer cylinders each having an ink repellent, electrically conductive, striped flexible jacket covering that is movable relative to the sheet support surface of the transfer cy... | 06/01/1999 |
| 5890822 | Image forming apparatus An image forming apparatus in which an imaged sheet is discharged onto a stacking portion, includes a recording device for forming an image on a sheet, a discharge device for discharging a sheet on which the image was formed onto the stacking portion, a s... | 04/06/1999 |
| 5724888 | Printed image after-processing apparatus A printed image after-processing apparatus includes a rotatable contact member coated with an excess ink removing liquid incompatible with a printing ink forming a printed image on a printing sheet and having a surface tension lower than that of the print... | 03/10/1998 |
| 5603264 | Method and apparatus for handling printed sheet material A transfer cylinder for supporting freshly printed sheet material between printing units or at the delivery unit of a printing press is provided with an ink repellent, flexible jacket covering for supporting and transporting the sheet material without tra... | 02/18/1997 |
| 5540152 | Delivery conveyor with control window ventilation and extraction system An extractor and a ventilation control window are coupled to the housing of a sheet delivery conveyor to extract unwanted heat, moisture, volatile vapors and obnoxious odors from the conveyor housing to eliminate the need for a separate venting system abo... | 07/30/1996 |
| 5511480 | Method and apparatus for handling printed sheet material A transfer cylinder for supporting freshly printed sheet material between printing units or at the delivery unit of a printing press is provided with an ink repellent, flexible jacket covering for supporting and transporting the sheet material without tra... | 04/30/1996 |
| 5483878 | Mimeographic printing machine A mimeographic printing machine includes a flexible rotary cylindrical printing drum, a lower pusher roller, an inside pusher roller, inside pusher roller controller, and printing sheet conveyor. A stencil paper is wound on the outer surface of the flexib... | 01/16/1996 |
| 5413044 | Sack net for printing press anti-smear transfer cylinder A ready-made fabric sack with an elastic string around the periphery of the sack opening to be placed over a transfer cylinder in a printing press. When placed over the transfer cylinder, the inherent resiliency of the fabric and string causes the sack to... | 05/09/1995 |
| 5090686 | Paper guide wheel A paper guide wheel for printing presses is formed to include an outer surface eccentric with respect to the axis of rotation of the wheel so as to form an air gap between the outer surface of the wheel and the paper as the paper is drawn thereover during... | 02/25/1992 |
| 4846064 | Slip sheet insertion-delivery apparatus for sheet-fed printing press In a slip sheet insertion-delivery apparatus, a plurality of printing sheet grippers opposite to some of a plurality of gripper pads mounted on a gripper pad shaft and slip sheet grippers opposite to the remaining gripper pads are mounted on one gripper s... | 07/11/1989 |
| 4844633 | Active paper drop mechanism for a printer A sheet of paper, upon which characters have been printed by a printhead, is stacked at a collection station using a mechanism that conveys the sheet to a position above a stack of previously printed sheets, while supporting the sheet so that it does not ... | 07/04/1989 |
