子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Pad transfer printing doctor blade and method | US196433 | 1994-02-15 | US5408926A | 1995-04-25 | Robert A. Alder |
| In a pad transfer printing process a doctor blade is in the form of a downwardly and rearwardly curving strip of spring steel whose lower free edge rides on the working surface of the cliche, thus wiping off excess ink prior to transferring ink from the cliche to the pad. The free edge is polished, and a downward force is applied whereby the strip is resiliently deformed by contact between the free edge and the working surface. | ||||||
| 142 | Foil for covering an impression cylinder | US121046 | 1993-09-13 | US5397651A | 1995-03-14 | Arno Wirz |
| Foil for covering an impression cylinder of a rotary offset printing press for first-form and perfector printing is formed of a chemically and wear-resistant rigid support layer having good ink transfer behavior and having a structured surface with statistically uniformly distributed convex and concave structural elements thereon, and a microroughness-reducing chromium layer disposed on the rigid support layer and forming a sheet-guiding outer cylindrical surface of the impression cylinder, respective peaks being formed on the convex structural elements for supporting a sheet thereon, each of the convex structural elements having an oval shape with a radius of curvature increasing from the respective peak thereof to a transition into respective concave structural elements adjacent thereto. | ||||||
| 143 | Offset blanket for a grooveless blanket cylinder composed of a carrier plate and a rubber layer placed thereon | US66769 | 1993-05-25 | US5351615A | 1994-10-04 | Ingo Kobler; Hans Mamberer; Eduard Hoffmann; Wolfgang Prem |
| An offset blanket for a grooveless blanket cylinder for applying a printed image onto web material or sheet material is composed of a carrier plate which has been cut to size and a rubber layer placed on the carrier plate. The beginning and the end of the carrier plate of the rubber layer are connected to each other so that the outer circumferential surface of the blanket is continuous and without gaps. The blanket surrounds the blanket cylinder in the operating position in the form of a sleeve in a frictionally engaging manner but releasably. A register device is provided on at least one end face of the blanket for securely positioning the blanket on the blanket cylinder. | ||||||
| 144 | Device for the identification of a flexible roller shell | US922196 | 1992-07-30 | US5323704A | 1994-06-28 | Stephen P. Fraczek |
| A device for the identification of a roller shell includes a microchip incorporated into a flexible material roller shell for printing presses. A scanning device excites the microchip for emitting signals permitting a definite identification of the microchip and of the roller shell. | ||||||
| 145 | Gapless tubular printing blanket | US911771 | 1992-07-10 | US5323702A | 1994-06-28 | James B. Vrotacoe; Glenn A. Guaraldi; James R. Carlson; Gregory T. Squires |
| A tubular printing blanket for a blanket cylinder in an offset printing press comprises a cylindrical sleeve, a compressible layer over the sleeve, and an inextensible layer over the compressible layer. The cylindrical sleeve is movable telescopically over a blanket cylinder. The compressible layer comprises a first seamless tubular body of elastomeric material containing compressible microspheres. The inextensible layer comprises a second seamless tubular body of elastomeric material containing a tubular sublayer of circumferentially inextensible material. A seamless tubular printing layer over the inextensible layer has a continuous, gapless cylindrical printing surface. Methods of manufacturing the tubular printing blanket are also disclosed. | ||||||
| 146 | Method of making a gapless tubular printing blanket | US10068 | 1993-01-27 | US5304267A | 1994-04-19 | James B. Vrotacoe; Glenn A. Guaraldi; James R. Carlson; Gregory T. Squires |
| A tubular printing blanket for a blanket cylinder in an offset printing press includes a cylindrical sleeve, a compressible layer over the sleeve, and an inextensible layer over the compressible layer. The cylindrical sleeve is movable telescopically over a blanket cylinder. The compressible layer includes a first seamless tubular body of elastomeric material containing compressible microspheres. The inextensible layer includes a second seamless tubular body of elastomeric material containing a tubular sublayer of circumferentially inextensible material. A seamless tubular printing layer over the inextensible layer has a continuous, gapless cylindrical printing surface. Methods of manufacturing the tubular printing blanket are also disclosed. | ||||||
| 147 | Metal foil electroformed with a master pattern, the master pattern per se, and method of manufacture | US485242 | 1990-02-26 | US5102744A | 1992-04-07 | Arno Wirz; Hans-Jurgen Beck |
| A metal foil made by electroforming from a master pattern with the interposition of a negative form, and serving as packing for sheet guiding cylinders and/or drums of rotary printing machines, including a substantially planar member having one flat face and an opposite face with a textured surface structure corresponding to an upper side of the master pattern, the upper side of the master patten having been roughened by a jet treatment and coated with a levelling galvano-layer in order to eliminate undercuts, the master pattern per se, and method of manufacture. | ||||||
| 148 | Wetting/inking mechanism for offset printing presses | US497443 | 1990-03-22 | US5086696A | 1992-02-11 | Rudi Junghans |
| Roller for distributing at least one of an ink and a wetting agent in a printing press. The roller has a generally uniform roughness of about fifteen micrometers to about twenty micrometers over its entire exterior surface. | ||||||
| 149 | Rubber blanket for an offset rotary printing machine | US649899 | 1984-09-12 | US4589339A | 1986-05-20 | Hermann Fischer |
| To relieve stresses within the rubber of a rubber blanket of a rotary offset printing machine, and prevent escape or squeeze-out of the rubber layer as the blanket rotates, the blanket is formed with interruptions or stress reliefs which, when the blanket is laid out flat, are located in zones corresponding to zones of the printed carrier which are free from printed subject matter, for example along fold lines of the carrier, surrounding pictures or non-printed subject matter, or the like. The interruptions or reliefs can be made by milling, for example longitudinal and transverse notches or grooves (2, 3) or by punching holes through the rubber layer (14), the holes being aligned in single or multiple rows along the zones free from printed subject matter. Stresses within the rubber layer, thus, can be relieved not only at the lateral edges, but also inwardly, and centrally, thereby improving overall register of printed subject matter. | ||||||
| 150 | Collector membrane | US524401 | 1983-08-22 | US4532175A | 1985-07-30 | Ronald E. Johnson; Lawrence S. Rajnik; Lung-ming Wu |
| In a printing apparatus using a collector membrane, certain formulations of room temperature vulcanizing silicone materials form membranes with superior performance. The preferred release characteristic of the material is set forth in terms of the time it takes a test element to roll along an inclined plane having an adhesive material thereon. | ||||||
| 151 | Method of using an offset lithographic combination master blanket sheet | US708183 | 1976-07-23 | US4034671A | 1977-07-12 | Frederick O. Bach |
| A combination master/blanket printing sheet for use with a lithographic offset duplicating press includes a master layer comprising material having hydrophilic properties which is imagable to provide pre-selected oleophilic areas for receipt of printing inks and a blanket layer of hydrophobic-oleophilic material suitable for receiving and carrying thereon an inked image transferred thereto by contact with a member carrying such image. In a preferred embodiment of the printing sheet the master and blanket layers are applied by coating or other suitable techniques to opposite surfaces of a base or support layer. The printing sheet is usable in the offset printing process both as a "master" sheet, when properly imaged on the master layer, and a "blanket". | ||||||
| 152 | Printing blanket, especially for offset printing | US31009372 | 1972-11-28 | US3819471A | 1974-06-25 | SOHNEMANN R |
| A printing blanket, especially for offset printing, comprising a strength carrier layer, an intermediate layer, and an ink transfer layer comprising a polymer base, filler materials containing hydroxyl groups, and high molecular weight, surface active substances.
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| 153 | Wiping cylinder of steel engraving printing machine and method of making it | US3785286D | 1971-08-26 | US3785286A | 1974-01-15 | GIORI G |
| The wiping cylinder of a steel engraving printing machine is coated with a plurality of thin plastic layers over a rubber base layer. When the wiping cylinder is to be cleaned with an organic solvent, the plastic coatings are of a thermoplastic synthetic resin that is soluble in water but not in organic solvents, for example polyvinyl alcohol that is partially saponified and contains acetyl groups. When the wiping cylinder is to be cleaned by an aqueous solution, the coatings are of a synthetic resin such as polyvinyl chloride that is not soluble in water. The thin plastic layers are applied successively by means of a doctor blade assuring smoothness, uniformity and exact thickness of the layers, and each layer is hardened before the next is applied.
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| 154 | Rubber printing blankets and process for removing and cleaning glazes therefrom | US3642537D | 1970-02-02 | US3642537A | 1972-02-15 | GARMS FREDERICK L |
| A process of removing glaze from printing blankets, preferably comprising the steps of (a) placing the blankets in a saturated water solution of a mineral acid salt in combination with either potassium sodium tartrate or an organic acid; (b) maintaining the temperature of the solution with the blankets therein just under 212* F. for a period of approximately 45 minutes to one hour; (c) then removing the blankets from the solution and rinsing them with water; (d) removing water spots from the facing of the blankets; and (e) then drying the blankets.
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| 155 | Cover assembly for impression cylinder of printing equipment | US3430560D | 1965-07-19 | US3430560A | 1969-03-04 | NETTLEMAN JOHN B |
| 156 | Electrochemical cell, particularly fuel cell, and gas-diffusion electrodes therefor | US21968162 | 1962-08-27 | US3404038A | 1968-10-01 | AUGUST WINSEL |
| 157 | Method of processing an offset rubber blanket | US77458458 | 1958-11-18 | US3025186A | 1962-03-13 | JOHANNES EEKHOUT FREDERIK; LUTJE WOOLDRIK GERRIT JAN |
| 158 | Print blanket washing apparatus | US40420941 | 1941-07-26 | US2335782A | 1943-11-30 | MCMORDIE JAMES H A S; WOOD MANSON E |
| 159 | Back grey for textile printing | US34623640 | 1940-07-18 | US2222143A | 1940-11-19 | EDWIN FARNWORTH; WOOD JR GEORGE H |
| 160 | Method of preparing wiping rollers for printing | US71057234 | 1934-02-09 | US2043604A | 1936-06-09 | SERGE BEAUNE |
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