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| Number | Title | Issue Date |
| 8156651 | Centrifugally cast external layer for rolling roll and method for manufacture thereof A method for producing an outer layer for a roll having a structure having MC carbide dispersed at an area ratio of 20-60%, comprising the steps of (1) centrifugally casting a melt having a composition comprising, by mass, 2.2-6.0% of C, 0.1-3.5% of Si, 0.1-3.5% of ... | 04/17/2012 |
| 8037607 | Process for producing conductive rubber roller, and roller for electrophotographic apparatus A process for producing a conductive rubber roller having a conductive core material and a rubber layer provided thereon. The rubber layer contains at least acrylonitrile rubber, epichlorohydrin rubber and a blowing agent, and has a gas generation rate of from 2 ml/... | 10/18/2011 |
| 7797833 | Developing roller and method of producing the roller, process cartridge, and electrophotographic image-forming apparatus The present invention intends to provide a method of producing a developing roller capable of providing high-quality electrophotographic images under a variety of environments. The method of producing a developing roller according to the present invention is a metho... | 09/21/2010 |
| 7520057 | Process for producing conductive rubber roller, and roller for electrophotographic apparatus A process produces a conductive rubber roller having small aspect ratios of inner and outer diameters, having a stable measure of its inner diameter, having uniform cell distribution and being free from non uniformity of hardness and electrical resistance in the per... | 04/21/2009 |
| 7367301 | CAM follower There is provided a cam follower in which a surface roughness of an outer surface of a roller of a cam follower which is in rolling contact with a cam of an engine is obtained individually in an axial direction and a circumferential direction, a skewness Rsk of a pr... | 05/06/2008 |
| 7353605 | Method for producing a metallic core for use in cylinder sleeves for an electrophotographic process An improved method for producing a metallic core for use in the production of a blanket cylinder or an image cylinder sleeve for use in electrophotographic processes. The sleeves includes aluminum or other suitable metal, which is rendered more suitable for use as a... | 04/08/2008 |
| 7341686 | Device for arresting the propagation of a buckle in a double-walled pipe Device for arresting the propagation of a buckle in a double walled pipe. The device comprising an outer pipe wall having a defined external diameter and placed around an inner pipe wall, defining an annular space between the said outer and inner walls; provi... | 03/11/2008 |
| 7288058 | Semi-conductive roll A semi-conductive roll is provided including a shaft, a low-hardness base layer formed on an outer circumferential surface of the shaft, and a coating layer formed by coating the low-hardness base layer radially outwardly. The coating layer includes one of a rubber ... | 10/30/2007 |
| 7226282 | Charge roller of developing device for image forming apparatus, method for fabricating the same and tool for fabricating charge roller A method of manufacturing a charge roller utilizes a foam rubber substance where epichlorohydrin oxide rubber and an acrylonitrile butadiene rubber are mixed at a ratio of 5:95, or utilizing a crosslinking rubber substance consisting of epichlorohydrin oxide rubber ... | 06/05/2007 |
| 7217113 | Process and installation for the manufacturing of a coating for an impression cylinder Manufacturing a coating for an impression cylinder whereby a carrier and a cylinder shape is provided. A hollow cylinder is positioned between the carrier and the cylinder shape, and material to form the coating in the spaces is introduced between the carrier and th... | 05/15/2007 |
| 7207268 | Apparatus and method of enhancing printing press cylinders A printing press cylinder and a method of manufacturing the same. The printing press cylinder includes a rigid base member having a reduced radius section and a polymer layer formed about the rigid base member generally within the reduced radius section. The polymer... | 04/24/2007 |
| 7152322 | Toner supply roller A toner supply roller comprises a metallic core shaft and an electrically conductive elastic layer formed to surround the outer surface of the shaft. The conductive elastic layer is formed of open-cell polyurethane foam. The polyurethane foam is impregnated with an ... | 12/26/2006 |
| 7137433 | Lightweight part, as well as a process and device for its production A lightweight part and process and device of making the same, the lightweight part including an inner core including a metal foam. A dense core surface layer is metallically joined to the inner core. An outer wall includes an essentially pore-free cast metal layer t... | 11/21/2006 |
| 7060191 | Magnet roll, method of manufacturing the magnet roll, and electronic equipment using the magnet roll A magnet roller includes a rotary sleeve having a given systematic pattern on the outer surface of the sleeve and a magnet provided in the sleeve. This structure transfers toner uniformly along the outer surface of the sleeve. A printer, for instance, employing this... | 06/13/2006 |
| 7014733 | Belt for shoe press and shoe calender and method for forming same A method of producing an endless belt includes the steps of: securing axial fibers relative to a mandrel, the axial fibers being spaced apart from one another at desired intervals and extending substantially parallel to a longitudinal axis of the mandrel; applying a... | 03/21/2006 |
| 7014604 | Paper machine roll cover A paper machine roll cover surface layer has a mixture of an elastomeric material and HDPE particles. The HDPE particles have surface modification to improve roll cover performance. ... | 03/21/2006 |
| 7011259 | Apparatus for working and processing materials A system for working and processing material, for example, for disintegrating different material, especially elastomers, in different branches of industry for lowering quantity of waste. The apparatus includes a housing with: branch pipes for introducing initial mat... | 03/14/2006 |
| 6954606 | Polyurethane coatings and drive rollers including the same A drive roller having a polyurethane coating that has a coefficient of friction with respect to a belt effective to drive the belt over the operative life of the belt. The drive roller may be included in an image-forming device to drive a belt. ... | 10/11/2005 |
| 6939279 | Tire for skew reducing roller A roller assembly for a sheet material transport assembly is disclosed, wherein skewing of the transported sheet material relative to the transport assembly is reduced. The roller assembly includes an elongate shaft having a compliant layer disposed about the shaft.... | 09/06/2005 |
| 6935995 | Roller for fluid film preparation or application The invention relates to a roller for fluid film preparation, such as for offset printing, having an inside core, a first layer which surrounds the core and has a first hardness, and a second layer which surrounds first layer A and has a second hardness different fr... | 08/30/2005 |
| 6924346 | Etch-stop resins Silicone resins comprising 5 to 50 mole % of (PhSiO3-x)/2(OH)x) units and 50 to 95 mole % (HSiO(3-x)/2(OH)x), where Ph is a phenyl group, x has a value of 0, 1 or 2 and wherein the cured silicone resin has a critical surfa... | 08/02/2005 |
| 6918865 | Roll cover A paper machine roll cover surface layer has a mixture of an elastomeric material and between about 10 phr and about 24 phr UHMWPE particles. ... | 07/19/2005 |
| 6915569 | Method of manufacturing an anilox roller for a flexographic printing press A method of manufacturing an anilox roller, in particular for a flexographic printing press, the anilox roller comprising a cylindrical core and a sleeve detachably held on the core and having at its surface an anilox layer with a grid pattern of pits, including the... | 07/12/2005 |
| 6915570 | Resin roller and device and method for manufacturing the resin roller A resin roller (10) is produced by disposing a core body (21) in a forming metal mold (1) having a cylindrical metal mold (13) and core supporting members (14) furnished at both edge parts of the cylindrical metal mold (13) ... | 07/12/2005 |
| 6884205 | Non-marking web conveyance roller A non-marking web conveyance roller has a generally irregular surface with a plurality of rounded up features that promotes superior venting of entrained air. The surface finish of the roller, formed by a thermal spray process, prevents the formation of impression a... | 04/26/2005 |
| 6871948 | Discharging roller, method of manufacturing the same, and recording apparatus incorporating the same In order to manufacture a discharging roller which discharges a recording medium from a recording apparatus, there are a first die formed with a first recess extending in an axial direction of a shaft portion of the discharging roller, and a second die formed with a... | 03/29/2005 |
| 6843761 | Paper feed roller and method of manufacture The present invention relates to paper feed rollers required to transfer papers in printers, facsimiles, copiers, etc. with accurately, and provides novel paper feed rollers which are lighter, less expensive and mass-producible with larger diameters as compared with... | 01/18/2005 |
| 6820336 | Making a powder metal roll end for a heatable roll A roll end (30) for a roll, in particular for a heatable roll, in a paper or board machine or in a finishing machine is made by a powder metallurgy process in a mold (20) such that a duct system (10) for a heat transfer medium is formed in conne... | 11/23/2004 |
| 6811524 | Elastic roll, process for producing such a roll, and process of repairing the roll A roll for smoothing a web, a process for making the roll and a process of repairing the roll. The roll includes a roll core having an outer surface. A covering layer is disposed on the outer surface of the roll core. The covering layer has an inner surface and an o... | 11/02/2004 |
| 6802123 | Method of manufacturing a rolling shaft of a photo printer A method of manufacturing a rolling shaft of a photo printer mainly has two rubber casings sleeved at two ends of a long cylindrical rod which is then placed horizontally; after that, the long cylindrical rod is sprayed with a layer of resin thereby forming an rubbe... | 10/12/2004 |
| 6783485 | Roll of a paper/boardmaking machine A roll for a paper or board machine is produced by forming a tubular roll blank by bending out of a planar sheet or by means of centrifugal casting. The roll blank is first coated with a material having a modulus of elasticity and a density lower than those of steel... | 08/31/2004 |
| 6769363 | Device and method for manufacturing a tubular printing blanket A device for manufacturing a printing blanket includes a base sleeve, a liquid applicator applying a radiation-curing polymer to the base sleeve, and a radiation source curing the radiation-curing polymer. A method for forming a tubular printing blanket includes pla... | 08/03/2004 |
| 6742453 | Printing sleeves and methods for producing same The invention is directed to a method for producing a novel flexographic printing sleeve which is readily axially mountable on and dismountable from a complementary shaped printing cylinder. The subject method comprises providing an apparatus for receiving a sprayed... | 06/01/2004 |
| 6733891 | Roll having glass coating Rolls include a core and a glass outer coating on the core. The glass can be electrically charged and discharged. The outer coatings have smooth finishes and controlled electrical properties. The outer coatings can also provide selected mechanical, chemical and ther... | 05/11/2004 |
| 6708407 | Method for manufacturing a thermoroll for a paper/board machine or a finishing machine A thermoroll for a paper/board machine or a finishing machine, the thermoroll having a shell of metallic, ceramic or composite material, and the shell having ducts for passing a heating medium from one axial end of the thermoroll to the other axial end of the thermo... | 03/23/2004 |
| 6699417 | Coating method for a roll or cylinder The invention relates to a method for coating a composite cylinder. On top of said composite cylinder (1) is drawn or extruded a metal casing (2), whose metal surface is modified a metal treatment process and/or plated with a coating layer.... | 03/02/2004 |
| 6682467 | Elastic roll and method of making the roll Roll for smoothing a web and method of making the roll, wherein the roll includes a hard roll core. An elastic covering layer is arranged on an outside surface of the hard roll core. The elastic covering layer includes an elastic matrix material and fiber... | 01/27/2004 |
| 6671958 | Method for producing a roll for a paper/boardmaking machine A roll for a paper or board machine is produced by forming a tubular roll blank by bending out of a planar sheet or by means of centrifugal casting. The roll blank is first coated with a material having a modulus of elasticity and a density lower than tho... | 01/06/2004 |
| 6666807 | Coating rod for paper manufacturing machines The invention concerns a coating bar for pulp and paper manufacture, comprising a substrate coated over at least the greater part of its surface with a coat comprising a ceramic, characterised in that the coat consists of a mixture of ceramics, the coat h... | 12/23/2003 |
| 6652433 | Oil application roller for use in an image-forming apparatus An oil application roller has a core shaft and an oil retention/supply layer formed to cover the outer peripheral surface of the core shaft. The oil retention/supply layer includes a porous elastic material which exhibits no substantial swelling against a... | 11/25/2003 |
