| Patent Number |
Title Of Patent |
Date Issued |
| 7032511 |
Fountain ink feed system |
April 25, 2006 |
| 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 retained and a distal |
| 6771301 |
Image setting apparatus having drum simulating supports |
August 3, 2004 |
| 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 toward the axis. The |
| 6375116 |
Core end plug for sheet roll material |
April 23, 2002 |
| 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 of the webs are opposite each oth |
| 6038039 |
Character smoothing in scanners/printers |
March 14, 2000 |
| 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 to the image data scanned by the |
| 5544583 |
Delivery interrupt mechanism for a printing machine |
August 13, 1996 |
| 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 conforming in shape to the curved |
| 5543219 |
Encapsulated magnetic particles pigments and carbon black, compositions and methods related ther |
August 6, 1996 |
| 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, such as audio and video tapes a |
| 5517214 |
Ink jet image drier |
May 14, 1996 |
| 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 dry the image, however, the dryin |
| 5452100 |
Image scanning apparatus |
September 19, 1995 |
| 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 for reproducing from said signal |
| 5395435 |
Fast drying duplicating ink |
March 7, 1995 |
| An water-in-oil emulsion duplicating ink comprising a water phase comprising an aqueous dispersion of oxidized carbon black and an oil phase comprising a saturated oil and an unsaturated oil. The ink compositions of the present invention dry quickly, and exhibit minimal dispersion in the |
| 5327251 |
Image scanning apparatus |
July 5, 1994 |
| 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 for reproducing from said signal |
| 5265529 |
Single piston impression cylinder throw-off |
November 30, 1993 |
| 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 second position engaging the |
| 5243379 |
Exposure drum mask |
September 7, 1993 |
| A mask is used for mounting a sensitized sheet, such as a printing plate, onto the surface of an exposure drum. The mask, acting as an intermediary between the exposure drum and the printing plate, is a flexible sheet, with a top and bottom surface, that is mounted about the exposure dru |
| 5235910 |
Blanket cylinder impression throw-off |
August 17, 1993 |
| A cylinder setting mechanism for an offset printing device in which a blanket cylinder moves eccentrically about a first pivot point to make contact with the master cylinder so that it can be inked and then subsequently moved eccentrically about a second pivot point to make contact w |
| 5203846 |
Media feed roll apparatus and method for its use |
April 20, 1993 |
| A media feed roll apparatus is provided for the transfer of articles such as envelopes, magazines and newspapers, one by one, from a stack to a transport which conveys these articles to a work station for printing or labeling. The apparatus and methodology according to the invention allo |
| 5189958 |
Plate clamping system for a duplicating machine |
March 2, 1993 |
| An improved plate clamping assembly for a duplicating machine which utilizes a pivoted or cantilevered beam in the leading edge plate clamp assembly and a calibrated cocking screw to enabling skewing of the plate on the plate cylinder by moving one end of the pivoted or cantilevered |
| 5111218 |
System for electronically controlling LED-array image printer |
May 5, 1992 |
| A system for controlling an image printer including a scanning LED array is provided. An image printer control unit receives page profile and raster image data and converts the raster image data into parallel image data corresponding to the configuration of the LED array. Advantageously, |
| 5103733 |
Printing machine with continuous sheet feed mechanism |
April 14, 1992 |
| An improved printing machine for moving paper sheets from a paper stack along an endless belt to an impression cylinder with continual movement of the paper sheet without stopping and starting. The instantaneous angular position of the impression cylinder is sensed and the instantaneous |
| 5094162 |
Offset printing machine |
March 10, 1992 |
| A cylinder setting mechanism for a single or multi-color offset printing device in which a blanket cylinder moves eccentrically about a first pivot point to make contact with a master cylinder so that it can be inked and then subsequently moved eccentrically about a second pivot point to |
| 5091745 |
Full range platemaker optical system |
February 25, 1992 |
| A graphic camera/platemaker optical system is described having a copyboard for an original subject, a lens, an image plane and a mirror. The copyboard, lens and mirror are independently movable such that they may move in different directions in order to produce a variable scale image or |
| 5084434 |
Ink and method for the development of concealed iamges |
January 28, 1992 |
| Disclosed is a system for developing latent images on alkali-based or acid based paper stock which has been marked with a water-soluble oxidizing agent to form a concealed image. In the system, a marking composition is applied to said paper stock which comprises(a) A water-soluble iodide |
| 5017226 |
Ink and method for the development of concealed images |
May 21, 1991 |
| Disclosed is a system for developing latent images on alkali-based or acid-based paper stock which has been marked with a water-soluble oxidizing agent to form a concealed image. In the system, a marking composition is applied to said paper stock which comprises(a) A water-soluble iodide |
| 4955032 |
Method and apparatus for mapping frames of an updatable electrophotographic medium |
September 4, 1990 |
| A method and apparatus for electronically mapping an updatable microfiche includes a microprocessor-based analyzer programmed to control and evaluate optical scanning of the imaging frame areas arranged in generally parallel rows and columns. Optical photosensors are used to detect the |
| 4890119 |
Variable orientation ink catcher |
December 26, 1989 |
| A variable orientation ink catcher for use with ink jet printing equipment receives unused ink drops. The drops are returned to the printing system for reuse. The catcher includes an arcuate receiving portion offset from an outlet port. Caught ink flows by gravity from the receiving port |
| 4860027 |
Ink drop control system with temperature compensation |
August 22, 1989 |
| A method and apparatus are disclosed which provide feedback control of ink viscosity in a drop marking system. The ink flow between two selected points is monitored and compared against a reference value by an electronic controller such as a microprocessor. In the event that a flow t |
| 4827280 |
Flow rate control system |
May 2, 1989 |
| A flow rate control system is disclosed for measurement of ink flow through an ink jet system. The flow rate control system receives an error signal indicative of deviation of flow rate from a set value. The system includes proportional (P), integral (I) and derivative (D) control to gen |
| 4821641 |
Dampening and bridging apparatus for a duplicating machine |
April 18, 1989 |
| A bridging roller is disposed between the upper form roller of the inking system and the dampening form roller of the dampening system. The bridging roller's mounting means are offset from the axis of rotation of the bridging roller such that selective orientation of the mounting means |
| 4518167 |
Sealing means |
May 21, 1985 |
| An apparatus such as a printing apparatus employing an ink fountain assembly which includes a roller and metering blade, supported between housing walls for purposes of metering ink in the course of a printing operation. Seals are provided for sealing against leakage of ink in the re |
| 4495617 |
Signal generation and synchronizing circuit for a decentralized ring network |
January 22, 1985 |
| A circuit for signal generation and synchronization is disclosed for a ring network in which a number of stations communicate with each other. The circuit, which is provided at each station in the ring, includes a phase locked loop which loosely couples the transmit and receive clocks of |
| 4465800 |
Ink composition for ink jet printing |
August 14, 1984 |
| An ink composition for use in ink-jet printing to print images on a substrate, the composition being formulated to include, as the resin component, a phenolic resole resin and, as the primary solvent, a lower alkanol. The composition is also formulated to contain a pigment or soluble |
| 4459913 |
Adjustment structure for master holder |
July 17, 1984 |
| A master sheet carrier which has a bar capable of holding the master sheet by clamping an end thereof, the bar being mounted on a mounting beam which is movable angularly and transversely with respect to the direction of movement of the master carrier, without requiring removal of the cl |
| 4434715 |
Printing apparatus including serial printing means |
March 6, 1984 |
| A printing apparatus including separate serial printing heads mounted on a rotary chase whereby the heads can be selectively positioned for printing on material as the material is transported through the apparatus. The chase is mounted on a support located in an easily accessible positio |
| 4397932 |
Electrophotographic composition and elements |
August 9, 1983 |
| An electrophotographic member having increased sensitivity to a longer wave length formulated of a complex formed by the reaction of Ninhydrin with a tertiary amine and which includes a polyalkenyl carbazole. |
| 4379823 |
Composition for forming photoconductive coating containing a photoconductive donor and an accept |
April 12, 1983 |
| 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 such as boron, aluminum, gallium, |
| 4370399 |
Equisensitive ambipolar indium doped selenium containing electrophotographic materials, plates a |
January 25, 1983 |
| 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 for electrons without notice |
| 4365035 |
Pigmented jet printing ink |
December 21, 1982 |
| 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 for maintaining a pH within |
| 4360817 |
Low evaporation ink catcher for ink jet printing system |
November 23, 1982 |
| An ink return system for an ink jet printer which directs a portion of the ink projected from a nozzle to a print surface and the remainder to a catcher, the catcher having a receptacle entrance for intercepting the ink stream including a tube with an entrance to catch the ink stream and |
| 4360584 |
Method of photopolymerization with complex metal chelate catalysts |
November 23, 1982 |
| Method of photopolymerization to produce vinyl based polymers and copolymers in the presence of a catalyst in the form of complex metal chelates. |
| 4319251 |
Ink jet printing employing reverse charge coupling |
March 9, 1982 |
| A method and apparatus for ink jet printing are disclosed which employ reverse charge coupling to increase character height. A video signal is utilized to modulate the charge ring voltage. Via a parallel path the ink in the nozzle is reversely charged by the video signal. Thus, as the in |
| 4309102 |
Original document handler |
January 5, 1982 |
| A document carrier includes a transparent cover which is selectively wrapable about the periphery of the carrier for releasably sandwiching the document between the carrier periphery and the cover, the carrier being rotatable about an axis for advancing the document thereon past a st |
| 4304183 |
Latent image-multiple copy process |
December 8, 1981 |
| 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 the color forming component is |
| 4292385 |
Bi-modal photoreceptor and method |
September 29, 1981 |
| A photoreceptor for producing copy in a full form exposure mode and in a laser mode in which the charge generative layer is overcoated with an intermediate charge transport layer which is transparent to light and through which charges can transport and a top layer overcoating the int |
| 4268027 |
Sheet feeding apparatus |
May 19, 1981 |
| A movable platform supports a stack of sheets, with at least a portion of the stack being in a predetermined feed zone where feeding apparatus engages and feeds the sheets, one-at-a-time, from the feed zone into processing machinery. Biasing means continuously urge the platform toward |
| 4262074 |
Photographic copy method and materials |
April 14, 1981 |
| 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. |
| 4260531 |
Ink composition for printing on polyolefin |
April 7, 1981 |
| 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 weight styrene-acrylic copolymer resin |
| 4241658 |
Duplicating machine with duplexing capability |
December 30, 1980 |
| A system for duplicating images on copy sheets utilizing an impression cylinder. The system provides for transfer of an image to one side of each sheet, and the sheet may then be reversed to locate the sheet on the impression cylinder, trailing edge first. The reversing is in synchronism |
| 4236842 |
Hammer support for rotary printing apparatus |
December 2, 1980 |
| A printing apparatus which includes a support for paper and a plurality of printing dies for making impressions on the paper. A reciprocally driven hammer is employed for causing the dies to form the impressions, and the hammer is supported by spring arms which are, in turn, attached to |
| 4236814 |
Transport system for advancing copy sheets through tandem duplicating system |
December 2, 1980 |
| In a tandem duplicating system, a transport means conveys a copy sheet from a first printing station where an image is applied to the first side of the copy sheet to a second printing station where an image is applied to the second side of the same copy sheet utilizing a suction force fo |
| 4234885 |
Remote ink valve |
November 18, 1980 |
| A system for controlling the flow of pressurized liquid to a head, for example the print-head of an ink jet printing system, through an elastic conduit and including an outer conduit to form a pressurizable jacket surrounding the inner conduit extending between the head and a remotely |
| 4213872 |
Sludge resistant liquid developer for electrostatic images containing a metal-dithiooxamide pigm |
July 22, 1980 |
| 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 the liquid developer composi |
| 4210710 |
Photoconductor of varying light sensitivity from center to edges |
July 1, 1980 |
| 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 radiation patterns. |
