Mesh Or Fabric Screen Patents (Class 96/363)
  • Patent number: 10473357
    Abstract: A flow-straightening device at a coupling portion between: an air supply chamber adjacent to a coating chamber and supplying air to the coating chamber via a filter provided at a boundary wall between the air supply chamber and the coating chamber; and an air supply duct supplying air to the air supply chamber in a direction along the boundary wall. When a direction parallel to the boundary wall and perpendicular to the air supply chamber width direction is an air supply chamber depth direction; and a direction perpendicular to the boundary wall is an air supply chamber thickness direction, the device includes a plurality of fins arranged in the air supply chamber width direction and the air supply chamber depth direction and juxtaposed to each other to be spaced apart from each other in the chamber thickness direction.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: November 12, 2019
    Assignee: TRINITY INDUSTRIAL CORPORATION
    Inventors: Yoshifumi Takagi, Masayuki Miyake, Takashi Hashimoto
  • Patent number: 10081029
    Abstract: The disclosure relates to a paint mist separating device, and a paint booth having a paint mist separating device. The paint mist separating device can include a tapered tube, and a collecting funnel with a funnel inlet and a funnel neck, into which the larger end of the tapered tube projects, wherein the funnel neck is provided for connection to a collecting tank for paint. The paint mist separating device can include a collecting hood, which is arranged opposite the funnel inlet and which has a paint mist inlet opening, into which a smaller end of the tapered tube opens, wherein an outlet gap is provided between the inlet opening of the collecting funnel and the collecting hood.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: September 25, 2018
    Assignee: ABB SCHWEIZ AG
    Inventors: Daniel Hermann, Wernfried Heinrich, Marcus Schnaubelt, Frederik Vandepitte
  • Publication number: 20140348711
    Abstract: A mechanical filter-based air pollution control system for removing particle and gas phase pollutants in a waste airstream exhausted from commercial cooking operations is described, which includes a housing enclosing at least three filter stages to remove particle and gas pollutants in the airstream. The example system may include a fogger assembly that sprays fog droplets into the waste airstream to condense a portion of gas phase pollutants into condensed particles, a wash mechanism including spray nozzles to wash surfaces of the first stage filter to remove grease therefrom, and injection means for injecting activated ozone, which comprises ozone with a surplus of hydroxyl radicals, into the housing to initiate advanced oxidation processes (AOPs) to decompose particle and gas phase pollutants within the waste airstream in the filters. Where activated ozone is employed, the system includes a fourth stage filter that adsorbs and retains gas phase pollutants for subsequent oxidation.
    Type: Application
    Filed: May 27, 2014
    Publication date: November 27, 2014
    Inventor: Robert C. Ajemian
  • Patent number: 8641019
    Abstract: A diversion station is provided. The diversion station makes it possible to particularly effectively cool diverted water vapor by mixing it with water. The diversion station includes a mixing device, which comprises a so-called static mixer that is substantially made of a wire mesh. The wire mesh is produced by at least one wire that is substantially interlaced into loops. In the intended installation situation, the mixer is installed upstream of a water injection with regard to a flow direction specified by the water vapor such that the mixture of water and water vapor flows through the loops.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: February 4, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Arne Grassmann, Christian Musch, Heinrich Stüer
  • Publication number: 20140008962
    Abstract: A dust scrubber for a mining shearer machine is adapted to be mounted behind the rear surface of the shearer arm, on the opposite side of the arm to the mine surface being cut, so as to extract airborne particulates. The scrubber may be mounted to the shearer via a compensation mechanism such as a double hinge and link arrangement which maintains relatively static position and/or orientation of the scrubber despite the pivoting of the shearer arm in operation.
    Type: Application
    Filed: September 12, 2013
    Publication date: January 9, 2014
    Applicant: MONTALL HOLDINGS PTY LTD
    Inventor: Brian Plush
  • Patent number: 8540804
    Abstract: Methods for removing sulfur from a gas stream prior to sending the gas stream to a gas separation membrane system are provided. Two schemes are available. When the sulfur content is high or flow is relatively high, a scheme including two columns where one tower is regenerated if the sulfur concentration exceeds a preset value can be used. When the sulfur content is low or flow is relatively low, a scheme including one column and an absorption bed.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: September 24, 2013
    Assignee: Saudi Arabian Oil Company
    Inventors: Milind M. Vaidya, Jean-Pierre R. Ballaguet, Sebastien A. Duval, Anwar H. Khawajah
  • Publication number: 20090255406
    Abstract: A lubricating liquid separator is disclosed which can damp a compressor pulsation noise effectively and improve the lubricating liquid separating performance without greatly enlarging the size of the separator itself. A demister (6) having a sound absorbing performance is disposed on an outer periphery side of a partition plate (5). Compressed gas which enters the interior of a housing (2) through a compressed gas inlet port (3) flows as rotating flow in a flow path (10) formed between the partition plate (5) and a portion of a side wall of the housing (2) opposed to the partition plate (5). Pressure pulsation of the compressed gas is diminished by the demister (6), and a compressor pulsation noise induced by the rotating flow of the compressed gas is diminished by the sound absorbing performance of the demister (6).
    Type: Application
    Filed: January 2, 2009
    Publication date: October 15, 2009
    Inventors: Toru Sakatani, Eiji Kanki, Yasumasa Kimura
  • Patent number: 6964699
    Abstract: A wet scrubber having a series of chambers for capturing and cooling exhaust gases generated during static test firing of rocket motors. Exhaust gas enters an inlet to a first chamber and is cooled and slowed by a spray solution. HCL gas is condensed and absorbed by the spray solution and precipitates to a liquid slurry at the bottom of the device. The remaining exhaust products enter a demister chamber where nozzles continue to spray the gasses as they pass upward and through a mesh-style demister at the top of the vessel. The demister filters liquid and solid waste particles from the gas stream, and the clean, dry gases are accelerated through a centrifugal fan into the atmosphere. A deflector is positioned within the inlet to the first chamber for containing parts in the event of a motor mal-function.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: November 15, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Richard H. Carns, Gerald Armstrong, Robert H. Rast, Dennis R. Mitchell
  • Patent number: 6863716
    Abstract: An air purification system which is well-suited to removing particles from outside air as the air flows into a cleanroom used in the fabrication of semiconductor integrated circuits. A housing provides at least one spray nozzle for spraying fine mist water droplets. In use, the water droplets capture the airborne particles in the air flowing through the housing and adhere to the water droplet target. The water droplets coalesce and form larger droplets which adhere to the surface of the water droplet target and ultimately collect in a drain pan. The low-density water droplet target prevents large pressure differentials from forming in the housing, which pressure differentials may otherwise cause re-vaporization of the water droplets from the target and re-flow of the particles in the flowing air.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: March 8, 2005
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yung-Dar Chen, Po-Sung Kuo, Yen-Chun Wang
  • Patent number: 6840987
    Abstract: An air filtering apparatus for purifying air. The air filtering apparatus includes an enclosure for coupling to ducting of a ventilation system. The enclosure has an interior defined by a top wall, a bottom wall, a pair of side walls, a first end wall, and a second end wall. A plurality of filters comprises a pair of wet filters and a pair of dry filters positioned in the interior. A pair of pump members supplies water from an enclosure reservoir to each of the wet filters. A supply assembly supplies water to the enclosure reservoir. A drain assembly drains the enclosure reservoir at preset intervals. A fan member forces exterior air through each of the filter members and outwardly through a duct aperture in the first end wall. A control assembly controls each of the pump members and the drain assembly to coordinate a purge sequence of the enclosure reservoir.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: January 11, 2005
    Inventors: Eliu P. Gonzalez, Eliu M. Gonzalez
  • Patent number: 6784320
    Abstract: In a decarbonation process for removing carbon dioxide from a carbon dioxide-containing gas with the use of an amine compound-containing absorbing solution, an amine compound accompanying a decarbonated exhaust gas is efficiently recovered in the following manner: A water washing section is constituted in two stages, a first-stage water washing section 64 and a second-stage water washing section 65. In these water washing sections, recovery of the amine compound accompanying the decarbonated exhaust gas is performed sequentially. Regeneration tower refluxed water is supplied as washing water to the second-stage water washing section 65. Washing water is withdrawn from the second-stage water washing section 65 and supplied to the first-stage water washing section 64. Demisters 83, 84 and 85 are provided at outlets of a carbon dioxide absorption section 73, the first-stage water washing section 64 and the second-stage water washing section 65.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: August 31, 2004
    Assignees: The Kansai Electric Power Co., Inc., Mitsubishi Heavy Industries, Ltd.
    Inventors: Tomio Mimura, Takashi Nojo, Kazuo Ishida, Hiroshi Nakashoji, Hiroshi Tanaka, Takuya Hirata
  • Patent number: 6772756
    Abstract: The present invention provides an apparatus for the vaporization of materials that releases active constituents for inhalation without the creation of harmful byproducts such as carcinogens associated with combustion and inhalation of substances.
    Type: Grant
    Filed: February 9, 2002
    Date of Patent: August 10, 2004
    Assignee: Advanced Inhalation Revolutions Inc.
    Inventor: Shaahin Sean Shayan
  • Patent number: 6645273
    Abstract: A method for removing impurity substances in air flowing in a flow passage includes filtering the air in a first filter for removing solid substances; cooling the air in a first cooler to not higher than its dew-point temperature; capturing gaseous substances in the air in a wet-type impurity removing apparatus; cooling the air in a second cooler; and filtering in a second filter. The wet-type impurity removing apparatus includes a first liquid atomizer having two pluralities of nozzle ports for spraying, arranged mutually spaced apart and facing each other in the direction of the air flow passage; first and second condensing and capturing assemblies located across the first atomizer and spaced apart from each other, with the first assembly being upstream and the second assembly being downstream from the first atomizer; a second atomizer for capturing any remaining gaseous substances in the air; and a third condensing and capturing assembly.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: November 11, 2003
    Assignee: Oki Electric Industry Co, LTD
    Inventors: Hidetoshi Wakamatsu, Mikio Matsuki, Norio Tanaka, Hiroshi Ogata
  • Publication number: 20030001293
    Abstract: A method for manufacturing a packing made of a three-dimensional netlike structure which constitutes an internal structure of device which performs material transfer, heat exchange or mixing between gases, liquids or gas and liquid, the internal structure being divided in a plurality of chambers or channels connected to one another is provided. The three-dimensional net-like structure is made of a plurality of unit structures which are arranged continuously in vertical and horizontal directions of the three-dimensional net-like structure. Each of the unit structures is formed by converging and dispersion of three or four line elements. The method comprises a step of forming a converging section of the unit structure where the three or four line elements converge by binding the three or four line elements together.
    Type: Application
    Filed: August 23, 2002
    Publication date: January 2, 2003
    Inventors: Tadayoshi Nagaoka, Rolf P.C. Manteufel
  • Patent number: 6478859
    Abstract: In summary a device for removing airborne particulate of the present invention includes at least one chamber having an airstream inlet at an upstream end and an airstream outlet at a downstream end, an air mover cooperating with the at least one chamber so as to urge an airborne particulate laden airstream into the at least one chamber through the inlet, along a flow path through the at least one chamber, and out of the at least one chamber through the outlet, at least one water sprayer mounted to the at least one chamber for mixing a spray of water with the airstream in the flow path, at least one slurry collecting element mounted entirely across and in the flow path so as to seal across the chamber to prevent bypass of the airstream around the collecting element, the collecting element downstream of the water sprayer, the at least one slurry collecting clement including at least one array of slurry collecting members mounted so as to pass at least a portion of the airstream through the array, the at least o
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: November 12, 2002
    Inventors: Keith A. Ferlin, Earl Holland, Clint Price, James Wymer
  • Patent number: 6391099
    Abstract: An improved scrubbing dust collector and exhaust gas treatment installation are described. The collector (2) includes a tank (21) containing a washing liquid, a scrubbing tower (22) on the upper portion of the tank into which an exhaust gas is introduced, a jetting nozzle (25) on the upper portion of the tower, and at least one netting member (42) located in a lower portion of the tower. The netting may be installed in a frame (40) which has slits therein. A plurality of netting members may be employed and a lower member may have a smaller mesh size than an upper one. The installation includes the scrubbing dust collector (2), a combustor (1) and a separator tower (23). As washing liquid is jetted from the nozzle (25), it passes downward in the scrubbing tower and forms a membrane-like layer on the netting member thereby providing a larger contact area between the exhaust gas and the washing liquid.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: May 21, 2002
    Assignee: L'air Liquide, Societe Anonyme pour l'etude et l'Exploitation des Procedes Georges Claude
    Inventors: Hidekazu Ina, Hideji Kawanaka
  • Patent number: 6117404
    Abstract: The present invention provides a process for recovering a basic amine compound which comprises the steps of (a) supplying a CO.sub.2 -containing gas to a carbon dioxide absorption unit in which an absorbing solution, which contains a basic amine compound, absorbs carbon dioxide; (b) bringing the gas, from which carbon dioxide has been removed, into vapor-liquid contact with a washing water at a temperature from 20 to 60.degree. C. in an amine recovering unit of a carbon dioxide removal tower, recovering part of the basic amine compound accompanying the gas into the water phase and discharging the gas as an exhaust gas of the carbon dioxide removal tower; and (c) collecting the basic amine compound which remains in the exhaust gas of the carbon dioxide removal tower by passing the exhaust gas pass through a demister at a temperature from 20 to 60.degree. C. The basic amine compound can be recovered efficiently from the gas of the carbon dioxide removal tower by using the above process.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: September 12, 2000
    Assignees: The Kansai Electric Power, Co., Inc., Mitsubishi Heavy Industries, Ltd.
    Inventors: Tomio Mimura, Hidenobu Shimayoshi, Shigeaki Mitsuoka, Hiroshi Tanaka, Masaki Iijima
  • Patent number: 5980617
    Abstract: A contraflow gas/liquid contactor tower having a gas diffuser to provide uniform gas flow in the tower, a set of partial helical membrane sheets running generally parallel to the tower axis and the gas flow, supported between an upper liquid distributing hub and a lower support hub, and a mist extractor pack with liquid direction control.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: November 9, 1999
    Inventor: Lance W. Hellerman
  • Patent number: 4170687
    Abstract: Planographic printing plates for use without fountain solution, and especially suitable for imaging with an electrophotographic toner, have a surface containing a fluorinated polyurethane. In use only the image areas accept ink.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: October 9, 1979
    Assignee: Gestetner Limited
    Inventors: Leonard A. Spicer, Derek J. McGee, Ian H. Elson
  • Patent number: 4168979
    Abstract: A light-sensitive printing plate having a matt layer, which is removable at development, on the surface thereof.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: September 25, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Okishi, Azusa Ohashi, Masaru Watanabe
  • Patent number: 4159202
    Abstract: This invention relates to a photo-cross-linkable polymer containing units each having a 2-pyridone side group. The invention also relates to a photosensitive copying material including the novel photo-cross-linkable polymer.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: June 26, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Harald Furrer, Hartmut Steppan, Gerhard Lohaus
  • Patent number: 4158567
    Abstract: An improved method of screen gravure photoengraving using a half-tone positive in which the gradation is fully represented by the variations of both sizes and depths of ink cells formed in the printing plate and the formation of moire pattern can be prevented without requiring strict registering in exposure steps, and the method comprises the steps of, for example, exposing a photosensitive material such as a carbon resist to a light source through a gravure screen having transparent crosslines, further exposing the photosensitive material to the light source through a half-tone positive, again exposing to the light source by interposing a diffusion sheet between the half-tone positive and the photosensitive material, then transferring thus exposed photosensitive material on a gravure cylinder and carrying out developing and etching.
    Type: Grant
    Filed: October 19, 1977
    Date of Patent: June 19, 1979
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Kokichi Honma, deceased, Yoshio Kameyama
  • Patent number: 4156612
    Abstract: A photoreactive composition containing an effective amount of a polymer which includes as a recurring structure: ##STR1## wherein Ar is a bivalent aromatic radical, and M is selected from the class consisting of hydrogen, alkali metal, ammonium, and substituted ammonium. These compositions are useful in a wide variety of photochemical and photomechanical processes and are particularly suited for use as photopolymers, photoinitiators and photosensitizers in light sensitive coatings of presensitized lithographic plates.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: May 29, 1979
    Assignee: The Richardson Company
    Inventors: Thaddeus M. Muzyczko, Thomas H. Jones
  • Patent number: 4137081
    Abstract: It has been found that excellent quality photopolymer printing plates having hardness, flexibility, resilience, abrasion resistance and resistance to alcohol-based inks can be prepared from photopolymer compositions comprising a liquid polymer containing at least two terminal olefin groups attached to the polymer through a combination of at least two ether, thioether, ester, keto or amide groups, from about 1 to about 50% by weight based on the polymer of at least one ethylenically unsaturated monomer, from about 0.1 to about 10% by weight of a photoinitiator and about 0.01 to about 2% of a stabilizer.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: January 30, 1979
    Assignee: Hercules Incorporated
    Inventor: Rudolph L. Pohl
  • Patent number: 4133685
    Abstract: A photopolymerizable coating over a diazo resin provides a high-speed lithographic plate or photoresist while improving the printing life of the plate while making its development simpler than that of most other photopolymer plates. The photopolymer is a cinnamoylated polyvinyl alcohol resin which is placed over a diazo based material.
    Type: Grant
    Filed: January 17, 1978
    Date of Patent: January 9, 1979
    Assignee: Richardson Chemical Company
    Inventors: Daniel C. Thomas, Jack L. Sorkin
  • Patent number: 4132833
    Abstract: A dye receiving element comprises diffusing heat transferable dyes into a transparent layer containing an amorphous, solvent soluble, aromatic polyester having at least 30 mole percent of its recurring units comprised of the condensation residue of a diol and a dicarboxylic acid, the residue containing a saturated gem-bivalent radical having a saturated polycyclic three-dimensional structure that includes a saturated bicyclic atomic bridged hydrocarbon ring member, the gem-bivalent radical linking two aromatic groups.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: January 2, 1979
    Assignee: Eastman Kodak Company
    Inventor: M. Akram Sandhu
  • Patent number: 4126460
    Abstract: A light sensitive printing plate comprising a support having provided thereon a light sensitive layer and a matted layer, said matted layer being removable upon development and containing a light absorbing agent possessing an absorption in the spectral region to which the light-sensitive material coated on the light sensitive printing plate is sensitive.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: November 21, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Okishi
  • Patent number: 4125661
    Abstract: Metal plates, e.g., of magnesium, zinc or copper, suitable for chemical milling and etching operations to produce photoengraving plates, printed circuit boards, nameplates, etc., comprising a metal layer and, adhered thereto, a plastic film layer having a thickness substantially smaller than that of the metal layer. The resulting composite laminates have proved outstandingly useful in permitting the employment of thinner metal layers, thus resulting in lighter weight and less expensive plates, yet retaining the required resistance to the chemical milling or etching process without impairment of mechanical stability and other desirable properties of the plate.
    Type: Grant
    Filed: December 2, 1977
    Date of Patent: November 14, 1978
    Assignee: Mona Industries, Inc.
    Inventors: Harold J. Messerschmidt, Jr., Karl Heyman
  • Patent number: 4120721
    Abstract: This invention relates to a liquid radiation curable composition useful for coating and imaging which comprises(1) an acrylic or methacrylic terminated, urethane containing polyene,(2) a non-water soluble vinyl monomer diluent, preferably an acrylate or methacrylate monomer diluent,(3) a polythiol containing at least two thiol groups per molecule and(4) a photoinitiator.The composition on exposure to radiation, e.g., a U.V. light source, cures to a solid polythioether.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: October 17, 1978
    Assignee: W. R. Grace & Co.
    Inventors: Arthur Donald Ketley, Paul Richard Hein, Michael Wen-Chien Yang
  • Patent number: 4116695
    Abstract: A method of producing a support for a printing plate comprising treating an aluminum plate, which has been oxidized by anodizing and then etched, with hot water or with water vapor.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: September 26, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Teruo Mori, Azusa Ohashi
  • Patent number: 4115118
    Abstract: A process for producing a printing plate comprising imagewise exposing a light-sensitive material comprising a support with a hydrophilic surface and having thereon an unhardened silver halide emulsion layer, developing the imagewise exposed light-sensitive material with a non-tanning developer, fogging the remaining silver halide, developing the fogged remaining silver halide with a tanning developer to thereby simultaneously harden the emulsion layer at the areas developed, and removing the unhardened emulsion layer, whereby an oleophilic tanning relief image is formed.
    Type: Grant
    Filed: December 14, 1976
    Date of Patent: September 19, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kikuo Kubotera, Akira Kashiwabara, Kotaro Sato
  • Patent number: 4112207
    Abstract: Polymers, such as butadiene copolymers and isoprene copolymers, having pendant unsaturated tetra-aliphatic quaternary nitrogen moieties, such as those derived from acrylic esters and acrylamides are useful as water-soluble or inherently water-dispersible curable coatings such as protective and/or decorative coatings, paper coatings, textile fiber coatings, printing plates, photo-curable imagable materials useful as photo-resists, lithographic plates, etc., and the like. Such coatings are curable with light, with high energy radiation and with heat in the presence of free radical catalysts to form insoluble, crosslinked coatings.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: September 5, 1978
    Assignee: The Dow Chemical Company
    Inventor: Giffin D. Jones
  • Patent number: 4108659
    Abstract: A process for engraving printing surfaces with unmodulated energy beams by interposing a variable reflectivity mask between the energy beam source and the printing surface. The local reflectivity of the mask varies in correspondence with the tone graduation of the original to be printed and may be formed by conventional photographic or the like techniques directly on the printing surface or on a substrate carrier through which the energy beam is passable.
    Type: Grant
    Filed: July 31, 1975
    Date of Patent: August 22, 1978
    Assignee: European Rotogravure Association
    Inventor: Mamiliano Dini
  • Patent number: 4101323
    Abstract: This invention relates to a radiation-sensitive copying composition comprising a compound (1) which splits-off an acid upon irradiation and a compound (2) having at least one group selected from the group consisting of a carboxylic ortho acid ester group and a carboxylic acid amide acetal group, which composition, upon irradiation, forms an exposure product having a higher solubility in a liquid developer than the non-irradiated composition.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: July 18, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Buhr, Hans Ruckert, Hans Werner Frass
  • Patent number: 4101324
    Abstract: A printing plate comprising a support, reliefs formed thereon as an image area, and from about 20 to about 4,000/cm.sup.2 small projections thereon in non-image areas, the height of the reliefs being at least 0.05 mm larger than that of the small projections, and a method for making a printing plate which comprises:(a) superimposing a photosensitive resin layer having a thickness of at least 0.06 mm on a support, which is at least semi-transparent to actinic light, in intimate contact therewith;(b) exposing the resulting assembly to actinic light through an image-bearing transparency from the side of the photosensitive resin layer;(c) exposing the assembly to actinic light through a dot-image-bearing transparency having a transparent halftone dot area in a proportion of 1 to 40% from the side of the support to thereby form reliefs on the support, as image areas, and a number of small projections having a height of at least 0.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: July 18, 1978
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Masayoshi Mizuno, Tadashi Kawamoto, Kiichi Iida
  • Patent number: 4097283
    Abstract: A water-soluble, photosensitive resin composition containing a water-soluble polymer having an ethylenic unsaturated bond in its side-chains, a water-soluble anthraquinone sulfonic acid or anthraquinone carboxylic acid sensitizer, or salts thereof, and if desired, a water-soluble azide compound.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: June 27, 1978
    Assignee: Fuji Chemicals Industrial Company Limited
    Inventors: Takateru Asano, Keiko Ito
  • Patent number: 4094679
    Abstract: A process for reducing the size of halftone dot images obtained by exposing and developing a metal image-forming material comprising a support, a thin metallic layer composed mainly of aluminum on the support and a photosensitive resin (or photoresist) layer on the thin metallic layer uniformly by first applying a solution capable of swelling the photosensitive resin layer to those parts which are to be subjected to dot size reduction, and then applying a reducer solution to the parts so treated.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: June 13, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Washizawa, Tomoaki Ikeda
  • Patent number: 4093464
    Abstract: A light-sensitive layer transfer material and such layer disposed on a carrier, for use in screen-printing stencils, printed circuit boards, integrated circuits, intaglio printing plates, relief printing plates, proof prints and the like, which comprises an alkali-soluble phenolic resin, such as phenol-formaldehyde novolacs, an ester or an amide of an o-naphthoquinone-diazide sulphonic acid, such as the p-cumyl phenyl ester of 1,2-naphthoquinone-2-diazide-4-sulphonic acid, etc., and an acrylic resin, such as a polymer of an alkyl ester of acrylic acid or methacrylic acid.
    Type: Grant
    Filed: July 26, 1973
    Date of Patent: June 6, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans Ruckert, Barbara Wildenhain
  • Patent number: 4078494
    Abstract: A letter press printing plate is disclosed for wrapping around a drum. The printing surface is formed with a light-sensitive material layer on a metal backing plate with two different levels, the high level representing areas of solid or dark tones of printing and the low level representing areas of light tones of printing. The printing plate overcomes the problem of even transfer of ink from the solid or dark tones of printing areas and the light tones of printing areas. A method of forming the letter press printing plate is also disclosed wherein a photo polymer layer on a backing plate is first exposed to a negative representing areas of solid or dark tones and light tones of printing. The photo polymer layer is then dissolved away to the backing plate in areas where no printing occurs and formed into a two-level printing surface with the areas of solid or dark tones being at a high level and the areas of light tones being at a low level.
    Type: Grant
    Filed: February 4, 1976
    Date of Patent: March 14, 1978
    Assignee: STANMont, Inc.
    Inventor: Howard W. Gregory
  • Patent number: 4063949
    Abstract: This invention relates to an improvement in the process for the preparation of a planographic printing form in which a recording material comprising a support of anodically oxidized aluminum and a recording layer thereon is imagewise irradiated with a laser beam, thereby rendering the irradiated portions of the recording layer oleophilic and/or insoluble, and the non-irradiated portions of the recording layer are then removed, where necessary, by washing with a developer liquid, the improvement comprising an oxide layer on said support weighing at least 3 grams per square meter.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: December 20, 1977
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Fritz Uhlig, Ine Gramm
  • Patent number: 4059481
    Abstract: An intaglio halftone gravure printing plate is made by contact-printing onto a sensitized carbon tissue a contact screen including a grid-like arrangement of minute dark dots each having the shape of a square rounded off at the four corners with the peripheries vignetted and having densities tapering from a maximum value of 3.0 at the center to a minimum value of 0.1 at the periphery, contact-printing a halftone positive onto the carbon tissue, contact-printing a light diffusion sheet and the halftone positive combinedly onto the carbon tissue, and developing the treated carbon tissue on a printing plate for subsequent etching of the cylinder.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: November 22, 1977
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventor: Katsusuke Nagano
  • Patent number: 4049453
    Abstract: A composite developer-etch composition for chromium-plated lithographic printing plates comprises an aqueous solution of aluminum chloride, a water-soluble chloride other than aluminum chloride, phosphoric acid, and an acid-stable water-soluble reducing agent; the composition having a particular specific gravity range.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: September 20, 1977
    Assignee: Printing Developments, Inc.
    Inventors: Vincent A. Pagliaro, Richard G. Walters
  • Patent number: 4046577
    Abstract: A photoreactive composition containing an effective amount of a polymer which includes as a recurring structure: ##STR1## wherein Ar is a bivalent aromatic radical, and M is selected from the class consisting of hydrogen, alkali metal, ammonium, and substituted ammonium. These compositions are useful in a wide variety of photochemical and photomechanical processes and are particularly suited for use as photopolymers, photoinitiators and photosensitizers in light sensitive coatings of presensitized lithographic plates.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: September 6, 1977
    Assignee: The Richardson Company
    Inventors: Thaddeus M. Muzyczko, Thomas H. Jones
  • Patent number: 4046071
    Abstract: A printing plate comprising a support, reliefs formed thereon as an image area, and from about 20 to about 4,000/cm.sup.2 small projections thereon in non-image areas, the height of the reliefs being at least 0.05 mm larger than that of the small projections, and a method for making a printing plate which comprises:A. superimposing a photosensitive resin layer having a thickness of at least 0.06 mm on a support, which is at least semi-transparent to actinic light, in intimate contact therewith;B. exposing the resulting assembly to actinic light through an image-bearing transparency from the side of the photosensitive resin layer;C. exposing the assembly to actinic light through a dot-image-bearing transparency having a transparent halftone dot area in a proportion of 1 to 40% from the side of the support to thereby form reliefs on the support, as image areas, and a number of small projections having a height of at least 0.
    Type: Grant
    Filed: September 26, 1975
    Date of Patent: September 6, 1977
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Masayoshi Mizuno, Tadashi Kawamoto, Kiichi Iida
  • Patent number: 4036130
    Abstract: An intaglio printing plate is prepared by coating a copperplate-engraved plate having a superficial chromium layer with an ink-accepting material such as a hardenable epoxy or acrylic resin, an enamel varnish, or a chemically or electrolytically deposited metal, and removing said layer from the non-grooved parts by treatment in a ball-graining machine. The ink-accepting material remaining in the grooves forms concave recesses suitable for wet offset printing with the precision, complexity and fineness of a copperplate design.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: July 19, 1977
    Assignee: De La Rue Giori S.A.
    Inventor: Gualtiero Giori
  • Patent number: 4023973
    Abstract: A photosensitive composition comprising (1) a maleic anhydride adduct of 1,2-polybutadiene having a molecular weight of 10,000 or higher, (2) at least one photosensitizer and/or at least one photosensitive crosslinking agent, and, if necessary, (3) at least one acrylic monomer. This composition can be developed with water or a polar solvent such as an alcohol, and its layer formed on a support provides a printing plate. When the acrylic monomer is contained, the composition is suitable for use in flexographic printing.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: May 17, 1977
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Fumitake Imaizumi, Isao Nagaoka, Mitsuo Kurokawa, Koei Komatsu, Yasuyuki Takimoto, Hidefumi Kusuda
  • Patent number: 4023971
    Abstract: A method of making a printing plate for intaglio printing having text characters and/or other indicia recessed therein for receiving printing ink which has a plurality of relatively thin barriers separating the text characters into a plurality of ink wells and defining surfaces for supporting a doctor blade during printing, the support surfaces intersecting the edges of each of the text characters at generally right angles and intersecting other supports at generally right angles to improve the quality of the printing of the text characters by minimizing the non-printing areas within the edges of the text characters and effectively retaining the shape of the edges of the characters, and a film or other photographic product for use in making such plates. The doctor blade supports are also designed to compensate for uneven material removal by chemical etching or the like so that the thickness of the supports are more uniform to minimize the non-printed areas within the edges of the characters.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: May 17, 1977
    Inventor: Harry S. Vested
  • Patent number: 4022619
    Abstract: A composite developer-etch composition for chromium-plated lithographic printing plates comprises an aqueous solution of aluminum chloride, a water-soluble chloride other than aluminum chloride, phosphoric acid, and an acid-stable water-soluble reducing agent; the composition having a particular specific gravity range.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: May 10, 1977
    Assignee: Printing Developments, Inc.
    Inventors: Vincent A. Pagliaro, Richard G. Walters
  • Patent number: 4020762
    Abstract: A planographic printing plate which is imaged by means of a laser beam in combination with overall exposure to ultraviolet light and developed by means which are conventional in lithographic art.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: May 3, 1977
    Assignee: Scott Paper Company
    Inventor: John O. H. Peterson
  • Patent number: 4019907
    Abstract: A photosensitive color-forming element comprises a support and a photosensitive color-forming layer formed on said support and containing therein at least one photosensitive color-forming azido compound of the formula ##STR1## wherein [A] is a benzene ring or naphthalene ring, R.sub.1 and R.sub.2 each is a hydrogen or halogen atom or alkyl, alkoxyl, dialkylamino, acyl, acylamino, nitro or hydroxyl radical, and R.sub.3 is a hydrogen or halogen atom, or alkyl, alkoxyl, nitro, carboxyl, alkylcarboxyl, dialkylcarbamoyl, sulfonic acid, dialkylaminosulfonyl, alkylsulfonyl or acyl radical or a group of the formula (II), (III), (IV) or (V): ##STR2## in which formula X is an --O-- bonding or --NH-- bonding.[B] is a benzene ring or naphthalene ring, and R.sub.4 and R.sub.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: April 26, 1977
    Assignees: Hodogaya Chemical Co., Ltd., Oji Paper Co., Ltd.
    Inventors: Takahiro Tsunoda, Minoru Ozutsumi, Shigeo Maeda, Susumu Suzuka, Hidetoshi Komiya, Hideaki Shinohara