Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8162315 | Peeling device, fixing unit, and image forming apparatus A peeling device is provided and includes: a rotating body that conveys a recording material; a peeling member capable of changing from a first state in which the peeling member is away from the rotating body to a second state in which the peeling member is closer t... | 04/24/2012 |
| 8002279 | Device and method for unloading laminar elements from a roll and transferring stacks of laminar elements, and roll used for same A device and method for unloading laminar elements from a roll and transferring stacks of such laminar elements, and to the roll used for the same. The method including unloading sheets from a roll with the aid of a barrier; receiving the sheets on a support, such a... | 08/23/2011 |
| 7487968 | Stacker belt with engageable deposit boxes The invention relates to a device for depositing notes, which comprises a plurality of storage compartments for depositing the notes, means for transporting the notes to the storage compartments and for the organized deposit of the same on stacks disposed in the sto... | 02/10/2009 |
| 7461841 | Sheet discharging apparatus and image forming apparatus Disclosed is a sheet discharging apparatus in which an apparatus main body portion is provided with plural discharging rollers for discharging sheets by rotation, and a shaft coaxially fixed to the discharging rollers. The shaft has an outer diameter smaller than an... | 12/09/2008 |
| 7434803 | Method and station for unblanked sheet delivery in a machine processing plate elements A delivery station and a method for unblanked sheet delivery uses a delivery pull-out frame provided with front jogging stops and transverse gripper bars. The ends of the bars are fixedly attached to two respective endless loops flexible drive elements for conveying... | 10/14/2008 |
| 7416184 | Sheet buffer device with rotating disk A paper or sheet buffering system is provided which avoids having to shut down the entire system when the paper path or transport is overloaded. A rotating disk having an attached collection and dispensing finger(s) is used to pull excess sheets off the transport an... | 08/26/2008 |
| 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 |
| 7086713 | Media detack from an intermediate printing member An inkjet printer for printing on a print medium having an obverse side and a reverse side, including a rotating intermediate transfer member for receiving a print image and transferring the print image to the obverse side of the print medium and a rotating drag for... | 08/08/2006 |
| 7055816 | Method of processing sheet-like products, and apparatus for implementing the method A method and apparatus for processing a stream of sheet-like products, such as printed magazines and newspapers, whereby the orientation of the products in the stream is changed to facilitate subsequent processing. The products are conveyed in an imbricated stream, ... | 06/06/2006 |
| 7052006 | Process and apparatus for producing stacks of printed products provided with an additional sheet A method and apparatus for producing stacks of flat objects, such as printed products 28, wherein the printed products are fed to a preliminary stacking compartment 20, into which opens the outlet 32 of an arrangement 12 for feeding addit... | 05/30/2006 |
| 6986575 | Automatic rotating media stripper carriage for a printer and method for maintaining a printer A printer assembly including a mechanism for rotating a stripper carriage includes a drum blade for stripping media from a drum and a transfix roller blade for stripping media from a transfix roller of an imaging device. The media stripper carriage is accessed and r... | 01/17/2006 |
| 6782229 | Fixing device provided in an image forming apparatus and having a mechanism for positioning a peeling member relative to a roller A fixing device has a first roller, a second roller, a peeling member located on a sheet exit side relative to the paired rollers to be guided in a direction away from the first roller, and a positioning mechanism configured to position the peeling member. The posit... | 08/24/2004 |
| 6769686 | Image forming apparatus There are disposed a star-wheel 21 in the form of a thin wall-thickness having a sharp projecting portion 21a as auxiliary member which strips off a recording paper P from the surface of a photosensitive body 2, and an inversion preventin... | 08/03/2004 |
| 6481710 | Apparatus for transporting individual sheets through a device for exposing or printing the sheets An apparatus for transporting individual sheets past an exposure station for exposing the individual sheets, including a roller that has parallel spaced annular grooves and has plurality of parallel endless belts on each side of the exposure station, whic... | 11/19/2002 |
| 6453128 | Paper separating apparatus of printer A paper separating apparatus of a printer includes a separating member installed to be adjacent to an exit side of the transfer roller and under a path along which the paper is discharged and fixedly coupled to a pair of bearing guides which rotatably sup... | 09/17/2002 |
| 6446962 | Device for vertically forming partial stacks of printed products A device for vertically forming partial stacks of printed products. Said device comprises a belt conveyor (1) for transporting printed products, a bulging device (11), by which the printed products conveyed on the belt conveyor (1) may be provided with a ... | 09/10/2002 |
| 6139009 | Device and process for delivering imbricated products A device and a method for depositing products or signatures on a conveying belt utilizes both a fixed stripper and a rotating stripper, in conjunction with a delivery paddle wheel. The cooperation of the fixed and rotating strippers deposits the signature... | 10/31/2000 |
| 6131903 | Signature stripping mechanism An adjustable signature stripping mechanism for stripping signatures from a rotating bucket assembly in a folder of a printing press. The mechanism includes a stripper shaft having a mounting portion and a pivot axis and a plurality of strippers mounted o... | 10/17/2000 |
| 6042106 | Wet-print cut-sheet media handling system A sheet media handling system is provided for use in supporting a sheet ejected from a wet-ink hard copy apparatus output port while ink on a preceding sheet ink an output tray is allowed time to dry before depositing the succeeding on top thereof. The sy... | 03/28/2000 |
| 5997965 | Stripping finger A stripping finger, for use in an electrophotographic apparatus, formed by molding a glass polymer consisting of phosphate glass and resin. The stripping finger does not attack the peripheral surface of a roller of the electrophotographic apparatus. The m... | 12/07/1999 |
| 5970305 | Electrophotographic apparatus having a film for separating printed media from a photoconductive drum An electrophotographic development system preventive of a rolling of paper on a photosensitive drum includes a charging roller for charging the surface of the photosensitive drum with high voltage by a rotation with the photosensitive drum, an exposure un... | 10/19/1999 |
| 5671920 | High speed printed sheet stacking and registration system A sheet stacking and registration system particularly suited for high speed sequentially stacking of the flimsy printed sheets output of a high speed reproduction apparatus in a sheet stacking area, with a stacking registration position; with a vacuum bel... | 09/30/1997 |
| 5603493 | System for use in handling media A sheet media handling system is provided for use in supporting a sheet which has been expelled from an ink-jet printer's output port while ink on a preceding sheet is allowed time to dry. The system employs a guide mechanism with an elongate channel whic... | 02/18/1997 |
| 5557389 | Device for separating a transfer paper utilizing a separation voltage A device for separating a transfer paper, onto which a toner image has been electrostatically transferred from the surface of a photosensitive member, from the surface of the photosensitive member. A separator roller made of an electrically conducting mat... | 09/17/1996 |
| 5518781 | Stripping fingers for copying machine Stripping fingers for use in a copying machine, molded of a liquid crystal polyester resin composition made up of a liquid crystal polyester having a flow temperature of 340° C. or higher and titanium oxide whiskers. The stripping fingers have excellent ... | 05/21/1996 |
| 5405482 | Labeling machine A labeling machine in which pressure sensitive adhesively backed labels are releasably adhered to a backing strip moving along a path from a dispensing roll to a take-up roll. The labels are removed from the backing strip onto a rotating applicator drum a... | 04/11/1995 |
| 5397120 | Apparatus for stacking sheets An apparatus for stacking successive rapidly advancing sheets of a stream of sheets has a platform which receives successive sheets and descends at the rate of accumulation of one or more stacks thereon. The sheets are delivered by one or more overhead be... | 03/14/1995 |
| 5220396 | Sheet separating mechanism In an electrophotographic printer using a continuous-form sheet as a recording medium, there is provided a sheet separating mechanism comprising an elastic member arranged to be deformed by the continuous-form sheet, that is pressed by a transferring char... | 06/15/1993 |
| 5211391 | Air flow assisted material removal method and apparatus A sheet removal apparatus for unloading a sheet from a hollow drum mounted for rotation about its axis and having a vacuum provided to the interior thereof and to first and second sets of vacuum openings through the surface of the drum. The sheet is arran... | 05/18/1993 |
| 5151742 | Fixing device sheet guide apparatus The present invention relates to a sheet guide apparatus of the type that a recording sheet delivered by a rotary movement in peripheral contact between a fixing roller and a pressure roller drops by its own weight into an upper open-type sheet receiving ... | 09/29/1992 |
| 5086318 | Image forming apparatus having transfer material carrying device An image forming apparatus wherein an image formed on an image bearing member is transferred onto a transfer material carried on the transfer material carrying member. The transfer material carrying member is capable of electrostatically attracting a plur... | 02/04/1992 |
| 5006905 | Separating apparatus of transfer material A separating device for separating a copy sheet from a photoreceptor of an electrophotographic copying machine after a toner image is transferred from the photoreceptor onto the copy sheet, comprising; a supporting plate, placed parallel to the photorecep... | 04/09/1991 |
| 4951936 | Separation unit A separation unit includes separation pawls for separating paper from a photosensitive drum, and a second shaft for supporting the separation pawls. Each separation pawl has a mounting hole extending therethrough and a slit opening the mounting hole. The ... | 08/28/1990 |
| 4911422 | Inserter reject station Apparatus for removing a flat article form a stream of articles moving along a straight path. The apparatus includes: a substantially curved, horizontal ramp movable vertically between a lower, home position and an upper position for engaging a removing t... | 03/27/1990 |
| 4886264 | Method and apparatus for receiving printed products from a revolvingly driven bucket wheel of a printing machine An outfeed conveyor is arranged beneath a rotary bucket wheel driven to rotate in a predetermined rotational direction. A belt conveyor is arranged downstream of, and a product entrainment arrangement is arranged upstream of, the outfeed conveyor. An endl... | 12/12/1989 |
| 4865310 | Stacker-sorter arrangement for sheet part pieces A sorter-stacker arrangement for sheet part pieces (17) such as are produced by a punch press (18), in which part pieces are unloaded onto a sorter table (50) in a located position against any one of a row of stops (52), and conveyed along an X-axis as by... | 09/12/1989 |
| 4806966 | Toner image fixing device A toner image device includes a separating member for separating an image forming medium carrying a toner image to be fixed from fixing rollers. The separating member has an end in contact with the fixing rollers. A groove is formed at an intermediate por... | 02/21/1989 |
| 4755096 | Apparatus for moving strips using mechanical manipulator In the commercial production of licorice bites, each about 1 inch long, a group of extruded 54-inch licorice strips are lifted by a programmable controlled robot from the discharge end of a lower conveyor and deposited at the input end of an upper conveyo... | 07/05/1988 |
| 4726579 | Sheet stacking arrangement An improved sheet stacking arrangement for use with a recording apparatus, which includes a sheet feed-out device, a tray provided with an inclined surface descending to a certain extent towards the recording apparatus, and a sheet leading edge restrictin... | 02/23/1988 |
| 4666146 | Separating apparatus for printed products, particularly for distributing folded printed products into discrete paths A pair of supply belts (3, 4) pass vertically towards an open deflection drum (5) which has two peripheral deflection segments (6, 7), one (4) of the supply belts then is joined by another belt (9), the junction forming an inlet funnel or zone (14) which ... | 05/19/1987 |
