...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8127673 | Device for turning over sheet material The invention relates to a device for turning over sheet material, in a printing machine, such as verso-printing in an electrophotographic printing machine. The device includes driven web-shaped segments extending essentially parallel to each other over at least one... | 03/06/2012 |
| 8091476 | Web conveyance method and apparatus of tandem printing system By executing low-speed conveyance of web by a web feeding mechanism before the printing operation begins, slack W22a, W10a, and W15a in the web located downstream of the guide rollers, and the slacked web is accumulated in t... | 01/10/2012 |
| 8065957 | Inspection system for a sheet-fed recto-verso printing press There is described a sheet inspection system for a sheet-fed recto-verso printing press of the type comprising two printing cylinders (10, 20) for carrying out simultaneous recto-verso printing of the sheets, said sheet inspection system comprising at least o... | 11/29/2011 |
| 7677171 | Printing machine and process for printing including a chain gripper system The machine comprises at least a printing cylinder (4), an inking cylinder (5) and a chain gripper transporting system (2,3) with grippers (17). The printing cylinder (4) comprises at least one transversal pit (7) for receiv... | 03/16/2010 |
| 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 end of the transfer cylinder and rotate together with the transfer c... | 12/15/2009 |
| 7427064 | Machine for processing a sheet of printing material 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 ... | 09/23/2008 |
| 7392743 | Thickness detecting apparatus There are provided a thickness detecting apparatus which can restrain erroneous detection even though a sheet or the like overlaps with only a part of a rotary body, and, which can enhance the degree of accuracy of detection, comprising a cylindrical displaceable ro... | 07/01/2008 |
| 7379703 | Image forming apparatus A plurality of helical groove sections are provided on outer peripheral surfaces of press rollers provided in a curl elimination mechanism. Each of the groove sections assumes a shape extending in the circumferential direction of the respective press rollers; that i... | 05/27/2008 |
| 7377510 | Delivery apparatus and delivery method In a delivery apparatus having a delivery conveyor for receiving and transporting a signature discharged from a printing press, the delivery conveyor is continuously driven if the drive speed of the printing press is higher than a predetermined speed, or the deliver... | 05/27/2008 |
| 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 |
| 7357390 | Devices for aligning sheets and a method for aligning sheets transversal to the direction of travel of the sheets A device is provided for use in the alignment of sheets transverse to a direction of sheet travel. A sheet retaining device, which conveys the sheets, is displaceably mounted for holding the sheets against a side guide. At least two sheets are situated one above the... | 04/15/2008 |
| 7347418 | Method and apparatus for overlapping sheets in a sheet feeder and providing the overlapped sheets to a printing press The present invention is directed to a sheet feeding apparatus and method. In particular this invention comprises a sheet feeding apparatus having a first conveyance member, a second conveyance member, and a sheet bending member. The first conveyance member conveys ... | 03/25/2008 |
| 7347416 | Apparatus for transporting a printing material sheet An apparatus for transporting a printing material sheet includes a holding crossmember for holding the printing material sheet and a traveling-wave motor for driving the holding crossmember. The traveling-wave motor has a first traveler and a second traveler for mou... | 03/25/2008 |
| 7334790 | Apparatus for conveying sheets through a rotary press 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 cylind... | 02/26/2008 |
| 7337074 | Method and apparatus for determining the mass of portioned units of active substances A method and the apparatus for determining the mass of portioned units of active substances, in particular capsules, tablets or dragees, involves leading the units of active substances through a microwave resonator and determining the mass from the displacement of t... | 02/26/2008 |
| 7334520 | Printing press and device for the inline monitoring of printing quality in sheet-fed offset printing presses A printing press for processing sheet printing materials includes at least one printing unit, a computer and a measuring device for monitoring printing quality during a printing process. The measuring device has a sensing device for measuring by color or spectrally ... | 02/26/2008 |
| 7328896 | Apparatus for separating a sheet of print media from a stack of sheets An apparatus (32) for separating a sheet of print media from a stack (30) of porous sheets includes a sheet conveyor for conveying a topmost sheet (30.1) of print media which has been separated from the stack (30) to a printing station ( | 02/12/2008 |
| 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 |
| 7322760 | Antijamming device for printers put in public places An antijamming device for a printed ticket vending machine having an exit opening for exiting of a printed ticket and a control for controlling feeding of unprinted tickets to a printing mechanism for printing tickets, having a pathway through which printed tickets ... | 01/29/2008 |
| 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 |
| 7318586 | Method and device for stacking sheet material A spiral slot stacker has a two-part stripper 2 for stripping out sheet material from a stacker wheel 1. The two parts 2a, 2b of the stripper are movable. A first part 2a of the stripper is moved out of the sta... | 01/15/2008 |
| 7308853 | Bulk paper feeding device with intermediate conveyor for image forming device Provided is a bulk paper feeding device with an intermediate conveyor comprising a carrier capable of carrying a large quantity of paper, a paper feeding mechanism for picking up and feeding one sheet at a time of the paper from the carrier, and an intermediate conv... | 12/18/2007 |
| 7305921 | Combined printing press In order to process inexpensive printing materials in connection with the processing of an extremely wide range of coating media, such as solvent-containing printing inks, and, moreover, in connection with variable format configuration and extremely flexible process... | 12/11/2007 |
| 7293633 | Controlled damper assembly with isolated electrical connection A controlled damper assembly includes a controlled-damper-assembly piston, a controlled-damper-assembly piston rod attached to the piston, an insulated wire, and an electrical connector. The insulated wire is positioned in the piston rod, has a first end operatively... | 11/13/2007 |
| 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 |
| 7275481 | Printer A printer of the present invention includes a timing belt passed over drive pulleys, each of which is mounted on a particular print drum, via phase adjusting means and deflection pulleys or rotary members. The deflection pulleys are rotatable in contact with the rea... | 10/02/2007 |
| 7277670 | Double-sided image forming apparatus An image forming apparatus has an image forming unit that forms an image on one side of a recording medium, and a return unit that returns the recording medium to the image forming unit so that an image can be formed on the other side. A control unit selects differe... | 10/02/2007 |
| 7273008 | Integrated installation and method for treating sheets of printed paper The invention concerns an installation comprising means controlling printing quality supplied by a printed sheet feeding device. Downstream, printing means print serial numbers and/or affix other elements. The quality of the number printing is controlled by a contro... | 09/25/2007 |
| 7270873 | Anti-marking coverings for printing presses In a printing press and attached onto the transfer cylinders, an anti-marking system that uniformly supports the transport and the release of the wet printed sheet from one station to the next. The anti-marking sheet consists of a two plus layer system, the outer la... | 09/18/2007 |
| 7267053 | Delivery device for a sheet-processing machine The invention relates to a delivery device for a sheet-processing machine. The object of the invention is providing a delivery device on a sheet-fed rotary printing machine, that can be universally used and permits quality control of the printed and/or laminated she... | 09/11/2007 |
| 7261661 | Parallel hybrid transmission having a single motor/generator A reduced cost, compact parallel hybrid transmission having only a single motor/generator is provided. The transmission utilizes a reduced number of components, preferably only three interconnecting members and four torque-transmitting mechanisms, to provide a rever... | 08/28/2007 |
| 7258500 | Media processing apparatus and scanner unit The media processing apparatus has a first transportation path for guiding the check, a second transportation path and a third transportation path that diverge from the first transportation path, a front scanner that is rendered along the first transportation path f... | 08/21/2007 |
| 7257355 | Toner supply device A toner supply device is disclosed that supplies toner contained in a toner container to a developing device in an image forming device. The toner supply device includes a conveyance pipe for conveying the toner from the toner container to the developing device down... | 08/14/2007 |
| 7256510 | Hybrid electro-mechanical transmission with single motor/generator and method of control An electro-mechanical transmission is provided having only a single motor/generator, at least one differential gear set and two torque-transmitting mechanisms. A first of the torque-transmitting mechanisms is selectively engageable to establish a first continuously ... | 08/14/2007 |
| 7249759 | Sheet feeding apparatus A sheet feeding apparatus including a stacking portion for stacking a plurality of sheets thereon, a sheet feeding portion for feeding the sheets stacked on the stacking portion, a fan for sending air to the sheets to loosen the sheets stacked on the stacking portio... | 07/31/2007 |
| 7240613 | Method for driving a satellite offset press and satellite offset press A method for driving a satellite offset press, and a satellite offset press which, with little expenditure, permits multicolor printing in one pass. A satellite offset press, in which form cylinders and associated transfer cylinders are driven synchronously, while i... | 07/10/2007 |
| 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 |
| 7219889 | Sheet-processing machine with a pneumatic sheet-guiding device A sheet-processing machine, particularly a rotary printing press, includes a blast-air supply system and a pneumatic sheet-guiding device connected thereto. The sheet-guiding device has a sheet-guiding surface formed with air passage openings and serves for having t... | 05/22/2007 |