Quotables
"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
PatentStorm News
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 |
| 7032511 | Fountain ink feed system An ink fountain assembly for use in duplicating machines, such as rotary lithographic machines. The assembly comprises a fountain trough defined by an elongated blade and an ink fountain roller defining a gap therebetween. A proximal edge of the blade is rigidly ret... | 04/25/2006 |
| 6771301 | Image setting apparatus having drum simulating supports An image setting apparatus produces an image on a flexible section of imageable material. The apparatus includes a retainer for retaining the flexible section in a cylindrical configuration about a cylinder axis. An imageable surface of the section faces inwardly to... | 08/03/2004 |
| 6375116 | Core end plug for sheet roll material A core end plug for mounting a roll of sheet material on a shaft. The plug comprises a cylindrical band of stiffly flexible plastic material having ends defining a longitudinal gap therein. A plurality of radial webs extend inwardly from the band. A pair ... | 04/23/2002 |
| 6038039 | Character smoothing in scanners/printers A scanner/printer system for smoothing the edges of text or line art is described having a copyboard for an image original, a CCD, a PCI bus, edge smooth software and a laser printer. The edge smooth software adds variable size fill-in patterns of pixels ... | 03/14/2000 |
| 5544583 | Delivery interrupt mechanism for a printing machine A delivery interrupt mechanism for a printing machine includes a support frame having a stationary guide defining a guide path. A flexible finger is slidably supported by the guide for movement along a curved portion of the guide path while substantially ... | 08/13/1996 |
| 5543219 | Encapsulated magnetic particles pigments and carbon black, compositions and methods related thereto Encapsulated particles, such as magnetic particles, colored pigments, or carbon black, with high chemical affinity for ink vehicles. The encapsulated particles of this invention are suitable for printing inks, as well as for magnetic recording systems, su... | 08/06/1996 |
| 5517214 | Ink jet image drier The drier consists of a plurality of nozzles that direct a small volume of air onto the printed image at as high a velocity as possible without disturbing the wet image. The air so delivered while it must be dry, does not have to be heated to effectively ... | 05/14/1996 |
| 5452100 | Image scanning apparatus An image scanning apparatus comprises an input image scanner for scanning an input image area with a beam of radiation and deriving from an image on at least part of the input image area a digital signal representing the image, and an output image scanner... | 09/19/1995 |
| 5327251 | Image scanning apparatus An image scanning apparatus comprises an input image scanner for scanning an input image area with a beam of radiation and deriving from an image on at least part of the input image area a digital signal representing the image, and an output image scanner... | 07/05/1994 |
| 5265529 | Single piston impression cylinder throw-off An offset printing machine that has an eccentrically mounted blanket cylinder operated by a single piston that moves the blanket cylinder from a first position separating the blanket cylinder from both the master cylinder and the impression cylinder to a ... | 11/30/1993 |
| 4379823 | Composition for forming photoconductive coating containing a photoconductive donor and an acceptor-sensitizer A photoconductive layer embodies the combination of an organic photoconductive donor compound, such as poly(N-vinyl) carbazole and derivatives thereof, and an acceptor-sensitizer compound having the general formula ##STR1## in which M is a metal... | 04/12/1983 |
| 4370399 | Equisensitive ambipolar indium doped selenium containing electrophotographic materials, plates and method An ambipolar electrophotographic plate and materials used in the manufacture thereof including a photoconductive layer formulated of selenium, selenium-arsenic alloy or selenium-arsenic-tellurium alloy containing indium as a dopant which extends the range... | 01/25/1983 |
| 4365035 | Pigmented jet printing ink A pigmented ink composition for use in jet printing formulated of an aqueous or water-alcohol solvent system, a highly water dispersible white pigment limited to a particle size of less than 5 microns, a water dispersible resinous binder, a basic compound... | 12/21/1982 |
| 4360584 | Method of photopolymerization with complex metal chelate catalysts Method of photopolymerization to produce vinyl based polymers and copolymers in the presence of a catalyst in the form of complex metal chelates.... | 11/23/1982 |
| 4304183 | Latent image-multiple copy process A latent image-multiple copy process wherein use is made of a stencil in which stencil openings are formed to correspond to the latent image and base sheets in combination therewith, containing an invisible, soluble, color forming component, whereby when ... | 12/08/1981 |
| 4262074 | Photographic copy method and materials An imaged development process and materials wherein use is made of a photographic medium sensitive to ultraviolet radiations and formulated of an alkyl cellulose derivative and 7,7,8,8-tetracyanoquinodimethane.... | 04/14/1981 |
| 4260531 | Ink composition for printing on polyolefin A jet printing ink composition for printing on treated or untreated surfaces of polyolefin plastics such as polyethylene and polypropylene in which the ink composition has a pH within the range of 7.0-10.5 and which is formulated to contain 5-20% by weigh... | 04/07/1981 |
| 4213872 | Sludge resistant liquid developer for electrostatic images containing a metal-dithiooxamide pigment or coating A liquid developer composition for visual development of latent electrostatic images in which the pigment particles dispersed in the liquid carrier is a metal-dithiooxamide product or a pigment coated with said metal-dithiooxamide reaction product whereby... | 07/22/1980 |
| 4210710 | Photoconductor of varying light sensitivity from center to edges A member for electrostatographic reproduction formed of a substrate and having a photoconductive layer characterized by a sensitivity to light which is greater at the outer portions than at the center to compensate for fall-off at the extremes of radiatio... | 07/01/1980 |
| 4209565 | Self-adhering stencil A self-adhering stencil in which a heat sensitive bonding resin is disposed as a coating on the uncoated tissue or incorporated in the stencil layer or disposed as a coating on either or both sides of the stencil layer.... | 06/24/1980 |
| 4202266 | Staging mechanism for duplexing copy machines A system for providing duplex images on copy sheets wherein the images are formed on the copy sheets by delivering the sheets to an impression cylinder for transfer of the images to the sheets. First and second ink images are provided, and each sheet is f... | 05/13/1980 |
| 4186020 | Fluorescent ink for automatic identification A fluorescent printing ink for non-impact type application, especially used for coding purposes, in which the fluid ink composition is formulated of an organic solvent base containing 0.005 to 2.0% by weight fluorescent dye, up to 60% by weight resinous b... | 01/29/1980 |
| 4153593 | Fluorescent ink composition for jet printing An aqueous jet printing ink composition which fluoresces under ultra violet radiation containing a water soluble fluorescent dye dissolved in the water base in an amount up to 2% by weight and a water soluble binder component dissolved in the water base i... | 05/08/1979 |
| 4153769 | Vinyl polymerization with boron chelates as catalyst and photoconductive sensitizer The preparation of a photoconductor which comprises the polymerization reaction product of an N-alkenyl carbazole or derivative thereof such as N-vinyl carbazole, in the presence of a catalyst in the form of a monochelate or muli-chelate of boron in which... | 05/08/1979 |
| 4123581 | Self-adhering stencil A self-adhering stencil in which a heat sensitive bonding resin is disposed as a coating on the uncoated tissue or incorporated in the stencil layer or disposed as a coating on either or both sides of the stencil layer.... | 10/31/1978 |
| 4097637 | Latent imaging master A master adapted to be imaged in the manner of an electronic stencil for use in producing multiple copies containing latent images in which the master comprises a base sheet having multiple coatings including a first coating containing an alcohol and/or w... | 06/27/1978 |
| 4097391 | Liquid developer for electrophotographic offset masters A liquid composition for development of latent electrostatic images formed on an offset master for use in the production of multiple copies by offset duplication, in which the developer composition is formulated to contain a fatty acid amine, aromatic ami... | 06/27/1978 |
| 4077802 | Single color electrophotographic copy process This invention is addressed to a single color electrophotographic copy process in which a receptor having a photoconductive coating comprising a photoconductor, at least one sensitizer which sensitizes the photoconductor to at least a portion of the spect... | 03/07/1978 |
| 4070322 | Ink composition for jet printing onto non-absorbent surfaces An ink composition for jet printing onto non-porous-non-absorbent surfaces based upon a ketone solvent having a soluble ionizable salt and a dyestuff and which may contain in addition water in an amount up to 10% by weight, a lower alcohol in an amount up... | 01/24/1978 |
| 4061582 | Resinous pigment toner and liquid developer containing polyvinyl acetate coated on the pigment A liquid developer for producing an ink receptive, water repellent, oleophilic image suitable for use in the production of multiple copies by lithographic technique wherein the toner employed in the developer composition has precipitated thereon the polyv... | 12/06/1977 |
| 4058470 | Liquid developer composition for lithographic masters A liquid developer for treatment to convert a latent electrostatic image to an ink receptive, water repellent, oleophilic image for use in the production of multiple copies by lithographic technique in which, in addition to the toner particles and organic... | 11/15/1977 |
| 4051283 | Printed sheets containing concealed images and method and materials for preparation and visual development of same A system for the preparing of copy containing concealed images and a marking material for the development of same in which the components comprise a receiving material in the form of starch or polyvinyl alcohol, an iodide which is oxidizable to iodine, an... | 09/27/1977 |
| 4038761 | Element and method for teaching with liquid crystals An element for use as a teaching, examination and instructional material formed of a sheet having a visible image imprinted thereon and coded images keyed to the visible image in which the coded images are formed with a material, such as liquid crystals, ... | 08/02/1977 |
| 4024096 | Jet printing ink composition for glass An ink composition for printing onto the surfaces of glass or other glazed ceramic surfaces by jet printing in which the preferred formulation for the printing ink composition comprises 2 - 20% by weight of a linear novolac resin, 0.6 - 3% by weight of an... | 05/17/1977 |
| 4007046 | Method of treatment of offset masters prior to conversion Prior to conversion of an offset master imaged by electrostatic technique to render the non-imaged portions of the imaged master ink repellent and water receptive, the surface is pre-wet with an organic solvent system which leaves residual solvent on the ... | 02/08/1977 |
| 3958988 | Photoconductors having improved sensitivity by presence of a like polar fields during imaging A method for developing a latent electrostatic image on a photoconductive surface which has previously been provided with an overall electrostatic charge of a predetermined polarity in which the charged surface is exposed to the image pattern of light and... | 05/25/1976 |
