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 |
| 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 |
| 7251450 | Paper separator and processor cartridge A paper separator may be equipped with plurality of paper-separating fingers for separating sheet(s) of paper for image formation and abutting and/or backed off from photosensitive body or bodies, paper separator optionally comprising finger body or bodies capable o... | 07/31/2007 |
| 7125183 | Recording apparatus and method thereof and removing claw therefor A removing claw 164 has a width W1 in a cross direction of 5 [mm] and a rectangular cross section with a height reduced toward a tip, and both ends of an upper side of the rectangle are chamfered to have a chamfered portion with a radius of r=1 [mm]. C... | 10/24/2006 |
| 7070182 | Sheet separating mechanism, fixing device, and image forming apparatus A sheet separating mechanism includes a separation claw arranged on the surface of a rotatable member such that the separation claw can be rotated around a shaft of the rotatable member with which a claw portion can be brought into slidable contact. A holder rotatab... | 07/04/2006 |
| 7035579 | Sheet separating apparatus for a fusing unit and method for using the same A sheet separating apparatus for a fusing unit separates a sheet being conveyed through a fusing unit from a heating roller and guides the sheet to a discharging roller without causing damages to a surface of a fusing roller. The sheet separating apparatus comprises... | 04/25/2006 |
| 7013572 | Skive plate assembly A skive plate assembly for aiding receiver sheet removal from a roller in a fuser in an electrographic process, comprises a base plate, a skive plate having a central portion, and a skive plate attachment rigidly connecting the skive plate to the base plate such tha... | 03/21/2006 |
| 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 |
| 6963717 | Fuser stripper baffle and a printing machine including the same A fuser stripper baffle exit minimizes differential gloss marks due to paper contacting the fuser exit baffle. Portions of paper that touch the baffle cool differently than portions that don't, resulting in differential gloss in the paper path or spanwise direction.... | 11/08/2005 |
| 6909870 | Fixing apparatus for a printer having a paper separating unit A fixing apparatus for a printer includes a paper separating unit. The fixing apparatus also includes a heating unit which fixes an image on paper by heating paper passing through a developing unit, a pressing unit which contacts the heating unit, presses paper pass... | 06/21/2005 |
| 6909449 | Method and apparatus for preventing debris contamination of plate rollers used in an imaging device A roller incorporating a relief surface is used for handling the emulsion coated surface of laser sensitive media in a laser imaging system. In some embodiments, the roller incorporating the relief surface is used to mount and demount media from a media support surf... | 06/21/2005 |
| 6844051 | Separation fingers for electro photographic devices This invention relates to a separation finger used in an Electro photographic device such as photocopying devices and laser-beam printers. More specifically, it relates to a separation finger with remarkably improved durability which has a sharp tips and is capable ... | 01/18/2005 |
| 6658229 | Recording material separating apparatus of which separating member is retractable in operative association with guide A recording material separating apparatus has a rotary member contacting with a recording material, a separating member for contacting with the rotary member and separating the recording material from the rotary member, and a guide member for guiding that... | 12/02/2003 |
| 6650862 | Image forming apparatus having sheet separator and sheet separator for use in image forming apparatus Disclosed is an image forming apparatus that enables to transversely move a sheet separator without a dedicated drive source and with a simplified construction to thereby reduce production cost of the apparatus. The image forming apparatus includes a thru... | 11/18/2003 |
| 6568673 | Apparatus for handling paper sheets and the like An apparatus for handling paper sheets and the like has a mechanism for discharging the paper sheets. The mechanism is provided with a scraper for scraping the paper sheets having wound around a wheel from the wheel. The scraper has a tip end and an oppos... | 05/27/2003 |
| 6456817 | Fixing device having an intruding separation member A fixing device includes a roller arranged to come into contact with a recording member bearing an unfixed image thereon so as to fix the unfixed image to the recording member, and a separation member arranged to come into contact with the roller so as to... | 09/24/2002 |
| 6293545 | Stripper blade assembly A stripper blade assembly for an ink jet offset printer has a thin blade fixedly mounted on a top surface of a blade holder. The blade holder includes at a trailing edge flexible eyelet portions that extend downwards to snap over protuberances on mechanic... | 09/25/2001 |
| 6293541 | Sheet feed unit having guide with sheet guide surface placed at confluence of two transport paths Featured is a sheet feed unit including a first transport path in which is transported a first sheet, a second transport path and a protrusion. A second sheet is transported in the second transport path and guided at a prescribed angle relative to the fir... | 09/25/2001 |
| 6243556 | Claw apparatus for liquid electrophotographic printer A claw apparatus for a liquid electrophotographic printer prevents a sheet of paper passing through a transfer roller and the fixation roller from adhering to and curling around the transfer roller due to a peel force. In the claw apparatus, a guide porti... | 06/05/2001 |
| 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 |
| 6085064 | Image forming apparatus An image forming apparatus includes: a first image carrier for carrying a toner image formed by an toner image forming device; a second image carrier for carrying thereon the toner image transferred from the first image carrier, and for transferring a tra... | 07/04/2000 |
| 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 |
| 5570775 | Apparatus for the release of a product from a continuously circulating belt An endlessly driven belt extends around a drum and carries a product. Removal of the product from the belt is effected by a doctor blade which bears against a portion of the belt traversing the drum. The doctor blade is fixedly connected to the drum for m... | 11/05/1996 |
| 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 |
| 5500726 | Fixing device with separation member capable of varying contact pressure Disclosed is a fixing device with a rotating member for performing a fixing operation by pinching and carrying a recording medium supporting an unfixed image. It separates a member pressing against the surface of the rotating member to separate the record... | 03/19/1996 |
| 5340430 | System for handling a waste web of a web laminate A system for handling a waste web initially forming a label web adhesively bonded to a carrier web which together comprise a web laminate. The waste web, having its undersurface adhesively coated, results upon the formation of labels from the label web su... | 08/23/1994 |
| 5315359 | Heat roll fixing unit In a heat roll fixing unit, adapted to be positioned in a printer employing an electrophotographic system for forming an image on a continuous-sheet to be fed in the printer, a pair of rollers is provided that are arranged to be brought into and out of co... | 05/24/1994 |
| 5246300 | Apparatus and method for removing paper jams from printers An apparatus for removing media jams from a printer throat in a printer in its preferred form is a sheet of flexible material having two linear arrays of spaced pin apertures aligned along opposing sides thereof. The pin apertures are sufficiently spaced ... | 09/21/1993 |
| 5241354 | Symmetrically flexible sheet stripping apparatus A symmetrically flexible separator device is placed immediately after and removed, by a pair of pads, from the nip between the fuser roller and the pressure roller in order to intercept the leading edge of an image-bearing receiver and thus reduce the ris... | 08/31/1993 |
| 5217220 | Diverter for a printing press A diverter (10) for a printing press having a cylinder (14) for sequentially carrying printed matter (22), a device (16) for rotating the cylinder (14) a device (42) for passing the printed matter (22) along a first usual path (32) when the printed matter... | 06/08/1993 |
| 5181076 | Jam prevention mechanism A jam prevention mechanism is provided, adapted to be positioned in a device including a pair of rollers through which a sheet is to be fed, for preventing the sheet from being caught around one of the pair of rollers. The jam prevention mechanism compris... | 01/19/1993 |
| 5133919 | Apparatus for disposing of a used thermal stencil master sheet and a process for disposing of the same An apparatus for disposing of a used thermal stencil master sheet, in a superior disposing efficiency and secret-retainability, and a process for disposing of the same are provided, which apparatus is provided with a stripping nail for stripping a used th... | 07/28/1992 |
| 5098627 | Method for producing a paper-releasing guide-claw of copying machine The present invention relates to a paper releasing guide-claw for a copying machine and a method for producing the same including molding a material containing from about 50-90% by weight of a polyimide consisting essentially of recurring units of the for... | 03/24/1992 |
| 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 |
| 4884798 | Copy turn around mechanism for reproduction machine A feed mechanism for a photocopy or similar machine directs the media, particularly wide-format media, into a receiving tray along a path which is substantially parallel to, but in the opposite direction of, the original media path. This allows for the re... | 12/05/1989 |
| 4866485 | Molded skive and guide A sheet stripping and guide assembly, suitable for use at the exit of an electrostatographic fusing station has lower stripper fingers that are inserted and molded integrally into a frame having upper sheet guide members.... | 09/12/1989 |
| 4806985 | Stripper fingers A sheet stripping device for electrostatographic systems includes a frame, a member having movable surface for conveying a receiving sheet, and a sheet stripping element for separating the receiving sheet from the movable surface, the sheet stripping elem... | 02/21/1989 |
| 4796880 | Skive with anti-gouge stiffener A skive is used for removing a copy sheet from a hot fuser roller in an electrographic copier/duplicator, or the like. The skive has a finger that engages the fuser roller at a small acute angle so that a sheet striking the finger normally will be deflect... | 01/10/1989 |
| 4771310 | Stripper finger mechanism for effecting removal of a record medium from a roll member A stripper finger mechanism is provided for separating record sheets from the surface of a roll member. In a preferred embodiment, a plurality of flexible stripper fingers are arranged so that the finger ends are angled against a fuser roller surface to e... | 09/13/1988 |
| 4766459 | Apparatus for separating transfer paper from photosensitive member of copying machine A transfer paper separating apparatus for separating transfer paper attracted by a photosensitive member of a copying machine from the photosensitive member is disclosed, in which the front edge of the transfer paper is peeled off from the photosensitive ... | 08/23/1988 |
| 4761667 | Image forming apparatus An image forming apparatus includes a detachable sub-assembly consisting of a latent image holder drum and cleaning means in a unitary assembly, whereby after the sub-assembly is removed from the image forming apparatus, the cleaning device and latent ima... | 08/02/1988 |
