Irregular Or Uneven Arrangement; E.g., Etched, Shot Blasted Patents (Class 492/37)
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Patent number: 12134105Abstract: A coating device, comprising a supply roller having a first contact surface, and a counter-roller placed opposite the supply roller and a second contact surface substantially parallel to the first contact surface. The contact surfaces are at least a substrate width in width and maintain a mutual gap for receiving the substrate therein in contact with both contact surfaces. The supply roller and counter-roller are each rotatable about their central axis. A liquid is supplied to the supply roller. At least the contact surface of the supply roller or the counter-roller is axially adjustable along the central axis thereof. Adjusting means align an edge of the contact surface of the supply roller and the counter-roller with a side of the substrate. An opposite edge of the other of the supply roller and the counter-roller is aligned with an opposite side of the substrate.Type: GrantFiled: November 20, 2020Date of Patent: November 5, 2024Assignee: Contiweb B.V.Inventors: Sjoerd Kappel, Michiel Van Der Meulen, Robbert Wind
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Patent number: 11731177Abstract: The peeling member is disposed inside the inner tank. The switching mechanism is provided for switching between the state of rotating the peeling member in the interlocking manner with the inner tank and the state of being disconnected the peeling member from the inner tank. With the peeling member disconnected from the inner tank, one of them is rotated, the used paper diaper stored is peeled off from the inner surface of the inner tank, and then, the used paper diaper processed in the processing tank is discharged from the bottom of the processing tank to the take-out unit via the opening and closing unit.Type: GrantFiled: September 17, 2020Date of Patent: August 22, 2023Assignee: PANASONIC CORPORATIONInventors: Genichiro Matsuda, Hidenao Kataoka, Naofumi Hino
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Patent number: 11554520Abstract: Recycled pulp that derives from a used sanitary article includes an antibacterial activity value of 2.0 or more and an acid. Recycled pulp that derives from a used sanitary article includes an antibacterial activity value of 2.0 or more and an ash content of 0.65% by weight or less, and further includes an acid. The acid is a citric acid. The recycled pulp further includes a cationic antibacterial agent. The cationic antibacterial agent is a quaternary ammonium salt. The cationic antibacterial agent is a benzalkonium chloride or a cetylpyridinium chloride. At least a portion of the cationic antibacterial agent is adsorbed on the recycled pulp.Type: GrantFiled: August 21, 2020Date of Patent: January 17, 2023Assignee: Unicharm CorporationInventors: Takayoshi Konishi, Toshio Hiraoka
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Patent number: 9272506Abstract: A system and method are provided for providing an improved inker unit surface cleaning and conditioning system, including in a single anilox chamber blade system, for improving image quality, including eliminating ghosting, in a proposed variable data digital lithographic image forming architecture. Techniques are provided to remove acquired oil from an inking member. A particularly-configured containment encloses a cleaner (disturber) roller to emulsify the acquired oil on the inking roller. The cleaner roller is preferably configured with a pliable surface including a silicon roller surface over a porous base. The silicon roller (1) absorbs dampening solution oil; and (2) agitates ink that may be still held in certain cells/cavities of the inking member or roller. In embodiments, a vacuum pressure is applied to the inside of the hollow cleaner roller to better remove the residual ink and dampening solution from the inking roller.Type: GrantFiled: June 29, 2014Date of Patent: March 1, 2016Assignees: Xerox Corporation, Palo Alto Research Center IncorporatedInventors: Timothy D Stowe, David K. Biegelsen, Gregory B Anderson, Jack T. Lestrange
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Patent number: 9266375Abstract: A rubber-coated ink transfer roll having a hardness range of from 20 to 80 Shore A and a mean depth of roughness Rz of from 30 to 80 ?m and a maximum depth of roughness Rmax of from 40 to 120 ?m, a free specific volume V1 from 0.001 to 0.1 mm3/mm2 and a free specific volume V2 from 0.02 to 1.5 mm3/mm2.Type: GrantFiled: August 9, 2007Date of Patent: February 23, 2016Assignee: FELIX BOETTCHER GMBH & CO. KGInventor: Barbara Baecker
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Publication number: 20150090133Abstract: A roll cover is particular suited for use in an apparatus for producing or surface finishing a fibrous web, such as a web of paper or of cardboard. The roll cover is formed on a roll core of metal or of a fiber-reinforced plastic and includes a matrix system wherein fillers are provided. The fillers provided are three or more in number and they have different median particle sizes.Type: ApplicationFiled: March 22, 2013Publication date: April 2, 2015Inventors: Franz Grohmann, Martin Breineder, Thomas Breineder
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Patent number: 8991053Abstract: To provide a charging member that can not easily cause faulty cleaning on a photosensitive member while having a flexibility high enough to form a nip between it and the photosensitive member in a sufficient width. The charging member has an electro-conductive support and an elastic layer that is a surface layer, which elastic layer has at its surface a region having been cured by irradiation with electron rays, where this region supports spherical polyethylene particles in such a state that the spherical polyethylene particles are exposed to the surface of the elastic layer, thereby making the surface roughened.Type: GrantFiled: June 11, 2013Date of Patent: March 31, 2015Assignee: Canon Kabushiki KaishaInventors: Hiroaki Watanabe, Masaaki Harada, Takumi Furukawa, Keiji Nose, Kenya Terada
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Patent number: 8920938Abstract: With the invention a metallic flat product can be systematically made available with such a fine, stochastic or quasi-stochastic surface texture that after a typical automotive paint application it is only minimally perceptible, if at all, by the human eye. At the same time, in the case of a surface topography constituted according to the invention, the transition between the peak plateaus and the valleys takes place via steep flanks. In this way, it is achieved that the morphology of the sheet metal surface is practically independent of the actual depth of the valleys. As a result therefore, the morphology of the sheet metal surface of a metallic flat product according to the invention is also independent of the skin-pass rate, which is obtained when the fine metal texture is produced by skin-pass rolling.Type: GrantFiled: June 20, 2008Date of Patent: December 30, 2014Assignees: ThyssenKrupp Steel Europe AG, Walzen-Service-Center GmbHInventors: Bodo Hesse, Karl-Heinz Kopplin, Folkert Schulze-Kraasch, Udo Schulokat, Hans-Gerd Weyen, Ingo Rogner, Torsten Herles, Roland Meier
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Patent number: 8731444Abstract: A develop roller includes a magnet roller, and a develop sleeve containing the magnet roller and comprising a plurality of depressions in an elliptic shape regularly arranged with an interval in a longitudinal direction on a surface onto which developer is attracted by a magnetic force of the magnet roller, wherein the depressions are arranged such that a longitudinal direction of the depressions is intersected with the longitudinal direction of the develop sleeve, and a downstream side of the depressions are formed to be deeper than an upstream side in a rotary direction of the develop sleeve.Type: GrantFiled: April 21, 2011Date of Patent: May 20, 2014Assignee: Ricoh Company, Ltd.Inventors: Masayuki Ohsawa, Toshio Kojima, Kyohta Koetsuka, Yoshiyuki Takano, Noriyuki Kamiya, Takashi Innami, Takumi Terasaka
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Patent number: 8561536Abstract: A film roller for offset printing having a surface with projections and recesses, characterized in that said projections and recesses form an irregular random pattern.Type: GrantFiled: July 18, 2007Date of Patent: October 22, 2013Assignee: Felix Boettcher GmbH & Co. KGInventor: Graham MacFarlane
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Patent number: 8500616Abstract: The present disclosure relates to controlling a performance characteristic of an image forming device component having a surface which may include removal of a portion of the surface to expose a plurality of voids and a surface between the voids. The surface between the voids may have a surface roughness Ra in the range of 0.1 to 5.0 microns and the relationship SAV/(SAV+SAC) is equal to 1-50%, where SAV is the surface area of the voids and SAC is the remaining surface area of the component. The performance characteristic may include the control of toner mass conveyed and/or toner filming and/or the amount of residual toner removed from a photoconductive surface.Type: GrantFiled: October 9, 2007Date of Patent: August 6, 2013Assignee: Lexmark International, Inc.Inventors: Johnathan Lee Barnes, Jeannette Quinn Bracken, Sudha Chopra, Jeremy Lavern Daum, Gerald Lee Fish, Bhaskar Gopalanarayanan, Leea Danielle Haarz, Ronald Lloyd Roe, Matthew Joe Russell, James Joseph Semler, Todd Joseph Svoboda
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Patent number: 8449683Abstract: An apparatus and method for picking up stickers in grassy or other ground areas. A roller is rotatably mounted on a frame and a stretchable fabric is removably mounted and stretched on an outer surface of the roller. The fabric is of a construction and thickness to pick up stickers as the roller is moved by the frame and rotated in engagement with a grassy or other ground surface. When the fabric is full of stickers, it is removed from the roller and replaced with a new unused stretchable fabric that is removably mounted on the roller.Type: GrantFiled: December 12, 2011Date of Patent: May 28, 2013Inventor: Marilyn S. Vice
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Patent number: 8276424Abstract: A pipe in which polygonization is substantially eliminated is manufactured by a reducer with a grooved roll with a groove having a groove bottom zone including the center of the groove in the roll axial direction and flange zones adjoining both sides of the groove bottom zone. The groove surface has a friction distribution in the roll axial direction such that the frictional force with respect to a material being rolled in the groove bottom zone is larger than the frictional force with respect to a material being rolled in the flange zones. This friction distribution can be achieved by working the groove surface so that the surface roughness of the groove bottom zone becomes greater than the surface roughness of the flange zones or by applying a lubricity modifier which differs with respect to amount and/or type between the groove bottom zone and the flange zones.Type: GrantFiled: August 7, 2009Date of Patent: October 2, 2012Assignee: Sumitomo Metal Industries, Ltd.Inventor: Akihito Yamane
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Publication number: 20110267413Abstract: In a recording apparatus that performs the recording on a medium to be recorded, a transport driving roller as a medium transport roller taking charge of the transportation of the medium to be recorded is formed by machining a plate material in a cylindrical shape. On its outer peripheral surface, in a transport region adjoining a piece of paper, through holes are formed to penetrate in a thickness direction of a hollow shaft. Thus paper powder attached to the paper is introduced from the through hole into the inner portion of the hollow shaft and is discharged through the hole to a lower portion of the hollow shaft. Consequently, it is possible to prevent the paper powder from being reattached or scattered to the paper without separately providing a special component, thus preventing or suppressing the paper powder from being attached to the recording head.Type: ApplicationFiled: April 29, 2011Publication date: November 3, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Yosuke NAKANO, Eiji TAKETSUGU
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Patent number: 8001895Abstract: An inking unit of a rotary printing press includes a film roller. The film roller has a structured outer surface that has a Shore D hardness ranging between 80 and 90 and a stochastic surface. The stochastic surface is incorporated into the outer surface of the film roller by peening.Type: GrantFiled: April 17, 2007Date of Patent: August 23, 2011Assignee: Koenig & Bauer AktiengesellschaftInventors: Georg Schneider, Bernd Kurt Masuch
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Patent number: 7925192Abstract: A developing roller includes a developing sleeve and a magnet roller disposed within the developing sleeve to attract developer to an outer surface of the developing sleeve by magnetic force. The outer surface of the developing sleeve has a plurality of recesses of circular or elliptic shape in plan view regularly or irregularly arranged therein so as not to overlap.Type: GrantFiled: August 29, 2008Date of Patent: April 12, 2011Assignee: Ricoh Company, Ltd.Inventors: Toshio Kojima, Kyohta Koetsuka, Rei Suzuki
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Patent number: 7891094Abstract: A method of manufacturing a hollow body having an external surface randomly provided with a large number of depressions is provided. The method includes providing the large number of depressions on the external surface of the hollow body. A profile curve of the external surface in a circumferential direction is obtained while rotating the hollow body. A frequency analysis is performed on the obtained profile curve. A quality of the hollow body is judged by comparing a result of the frequency analysis with a predetermined judgment standard.Type: GrantFiled: December 7, 2009Date of Patent: February 22, 2011Assignee: Ricoh Company, Ltd.Inventors: Tsuyoshi Imamura, Kyohta Koetsuka, Yoshiyuki Takano, Masayuki Ohsawa, Hiroya Abe, Mieko Terashima, Noriyuki Kamiya, Masaki Watanabe, Shigeharu Nakamura
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Patent number: 7571542Abstract: A method of forming a roll for embossing aluminum sheet, and the associated roll, the method comprising subjecting a surface of a steel roll to at least the steps of, in order: blasting treatment, electrolytic treatment with 1,000 to 20,000 C/dm2 of electricity in which the steel roll is used as the anode, and chromium plating treatment. An aluminum sheet embossing roll produced by the method of the present invention has on the surface thereof peaks, or asperities, which are of uniform height and very numerous. As a result, aluminum sheets obtained using such a roll, when employed as lithographic printing plate supports, have excellent printing characteristics, particularly a long press life and a high sensitivity.Type: GrantFiled: January 21, 2005Date of Patent: August 11, 2009Assignee: FUJIFILM CorporationInventors: Atsuo Nishino, Hirokazu Sawada, Akio Uesugi
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Patent number: 7470327Abstract: A peripheral surface of a coating rod has an area where grooves (convex portions) are formed. This area is ground by a grinding apparatus by which a maximum height Ry of the rod surface is adjusted to 15 ?m or less. Further, a ratio of D/W is adjusted to 0.01 or more, wherein D is a total distance of the convex portions of the rod actually abutting on a web in an axial direction of the rod, and W is a coating width of the web. Furthermore, straightness of the rod is adjusted to 30 ?m or less per 1 m, and roundness of the rod is adjusted to 10 ?m or less. Micro-projections are removed by grinding so that scratches of a coating surface are prevented from occurring. Coating unevenness is prevented by improving the straightness and the roundness.Type: GrantFiled: September 30, 2004Date of Patent: December 30, 2008Assignee: Fujifilm CorporationInventors: Atsushi Ooshima, Satoru Matsumoto, Yasuhito Naruse
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Patent number: 7322175Abstract: A forage conditioner for conditioning cut crop material from a forage harvester includes a fixed bottom fluted roller carried in end housings and a top fluted roller which is pivotally mounted on the housings by a linkage pivotal relative to the housing about an axis lying in a plane at right angles to the roller axes so that the top roller is liftable from crushing position against the bias of a spring extending along the top roller. Flutes on the rollers are arranged with a first surface on one side which extends substantially radially outwardly to an apex and a second surface which has a first portion parallel to a tangent of the roller and a second portion inclined inwardly to the roller surface at an angle significantly less than 90 degrees. The bottom roller is arranged with the first surfaces leading to carry the crop into the area between the rollers and the top roller is arranged with the first surface trailing.Type: GrantFiled: August 1, 2005Date of Patent: January 29, 2008Assignee: MacDon Industries Inc.Inventors: Leonard M. Ferre, Neil Gordon Barnett, Geoffrey U. Snider, David J. Jordan
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Patent number: 7296517Abstract: A roll for metal rolling has a roughened surface formed by an electrolytic treatment in an electrolytic solution while using the roll as an anode. When the roll is used to emboss an aluminum plate, it is possible to obtain an aluminum plate with an uneven structure having regulated positions of levels of peaks and a larger number of the peaks. A presensitized plate formed by use of the aluminum plate as a support has excellent printing performances particularly in the number of printed sheets and sensitivity.Type: GrantFiled: November 8, 2004Date of Patent: November 20, 2007Assignee: Fujifilm CorporationInventors: Atsuo Nishino, Hirokazu Sawada, Akio Uesugi
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Patent number: 7014897Abstract: A liquid ink imaging member having a top outer imaging surface is provided for receiving image forming ink droplets from a printhead. The liquid ink imaging member includes (a) a substrate member; (b) at least one elastomeric layer formed over the substrate member and including the top outer imaging surface; and (c) a surface texture formed into the top outer imaging surface and comprising asperities spaced apart at most from about one-half to about one pixel spot size for providing contact angle hysteresis to pin image forming ink droplets received thereon, thereby preventing ink droplet drawback, and resulting in quality images.Type: GrantFiled: December 16, 2002Date of Patent: March 21, 2006Assignee: Xerox CorporationInventors: David H. Pan, James E. Williams, T. Edwin Freeman, Edward B. Caruthers, Jr., James R. Larson, Frank J. Bonsignore, Antonio DeCrescentis
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Patent number: 6941100Abstract: A developer bearing member for bearing toner, the developer bearing member having a multitude of depressions on its surface, and each of the depressions has a multitude of protrusions on its surface. A method for forming the developer bearing member where a surface of the developer bearing member is treated by a blasting treatment, an etching treatment, and electroless plating. Alternatively, the surface of the developer bearing member can be treated with a blasting treatment using particles having a multitude of depressions.Type: GrantFiled: March 3, 2003Date of Patent: September 6, 2005Assignee: Seiko Epson CorporationInventors: Yoichi Yamada, Takehiko Okamura
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Patent number: 6902389Abstract: Tool rolls and methods of using the tool rolls to manufacture articles with one or more structured surfaces are disclosed. The tool rolls include an outer surface that, when used in connection with materials of the proper viscosity or formability, can form a structured surface on an article. Because the tools are manufactured in roll-form, they can be advantageously used in continuous manufacturing processes. Alternatively, discrete articles may be processed using the tool rolls. The tool rolls are constructed of a cylindrical base roll and are wrapped with one or more continuous wires in a helical pattern. The wires are used, in essence, to form a structured surface on the tool roll that is the negative of the structured surface to be formed on the articles processed using the tool roll. One of the wires wound around the base roll may include depressions formed therein that, when wound in helical coils about the base roll, form cavities on the outer surface of the tool roll.Type: GrantFiled: May 14, 2003Date of Patent: June 7, 2005Assignee: 3M Innovative Properties CompanyInventors: Michael R. Gorman, Robert D. Kampfer, Thomas R. LaLiberte
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Patent number: 6899419Abstract: A phase change ink image producing machine including (a) a control subsystem for controlling operation of all subsystems and components of the image producing machine; (b) melting apparatus for melting solid phase change ink into melted molten liquid ink; (c) a printhead system located for receiving said melted molten liquid ink, said printhead system being connected to said control subsystem for ejecting droplets of melted molten liquid ink onto an imaging member to form an image and a liquid ink imaging member having a top outer imaging surface for receiving image forming ink droplets from a printhead.Type: GrantFiled: June 8, 2004Date of Patent: May 31, 2005Assignee: Xerox CorporationInventors: David H. Pan, James E. Williams, T. Edwin Freeman, Edward B. Caruthers, Jr., James R. Larson, Frank J. Bonsignore, Antonio DeCrescentis
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Patent number: 6893707Abstract: Structured polyolefin coated substrates and processes for making the same are disclosed. A chill roll is used to impart a plurality of peaks which protrude outwardly from the polyolefin coating of the structured substrate. In addition, the chill roll surface is treated to impart a matte finish and thus to transfer a matte finish to the area surrounding the peaks of the polyolefin coating.Type: GrantFiled: November 18, 2002Date of Patent: May 17, 2005Assignee: Loparex, Inc.Inventors: LeRoy Herbert Keiser, Kurt Henry Mather
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Patent number: 6884205Abstract: 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 and honing defects on the conveyed web.Type: GrantFiled: October 2, 2001Date of Patent: April 26, 2005Assignee: Eastman Kodak CompanyInventors: Gary L. VanNoy, Brian S. Rice, Fernando Ramos, Jr., Daniel C. Lioy
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Publication number: 20040235629Abstract: A core is provided with a coating formed by an agglomerate obtained by hardening of a mixture comprising a granulated stone material, preferably of the type having a high hardness factor and light color, and a hardening resin, preferably an epoxy resin, for manufacturing a roller or cylinder of a non-porous external surface, the roller being used for the processing of materials and products. For the manufacture of the roller, a formwork having a cavity for housing a core is prepared so as to provide an interspace which is filled with the mixture, following which compacting of the mixture present in the interspace and then the resin hardening step are performed to obtain a non-porous agglomerate.Type: ApplicationFiled: June 4, 2004Publication date: November 25, 2004Inventor: Dario Toncelli
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Publication number: 20040209753Abstract: The present invention provides a used paper diaper processing method comprising:Type: ApplicationFiled: June 4, 2004Publication date: October 21, 2004Inventors: Chiyuki Kikushima, Tadashi Komoto
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Patent number: 6786444Abstract: A web winding method for wrapping a web comprising steps of: feeding the web having a thickness of 5 to 70 &mgr;m at a speed of 200 to 1000 m/min; wrapping the web around a contact roller of which a coefficient of friction at each axial end surface is lower than that at an axial center surface at a wrap angle of 45 to 180°; pressing the web against an outer peripheral surface of a web roll by the contact roller; and taking up the web in a rolled manner. Then, the web winding method can conspicuously prevent occurrence of flaws or wrinkles in a web without involvement of a drop in productivity.Type: GrantFiled: March 20, 2002Date of Patent: September 7, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Seiji Tomura
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Patent number: 6767202Abstract: Tool rolls and methods of using the tool rolls to manufacture articles with one or more structured surfaces are disclosed. The tool rolls include an outer surface that, when used in connection with materials of the proper viscosity or formability, can form a structured surface on an article. Because the tools are manufactured in roll-form, they can be advantageously used in continuous manufacturing processes. Alternatively, discrete articles may be processed using the tool rolls. The tool rolls are constructed of a cylindrical base roll and are wrapped with one or more continuous wires in a modified undulating helical pattern. The modified helical pattern results in the distance between the first wire and a reference plane transverse to the longitudinal axis of the base roll sequentially increasing and decreasing at least once when moving in one direction about a circumference of the base roll.Type: GrantFiled: December 18, 2001Date of Patent: July 27, 2004Assignee: 3M Innovative Properties CompanyInventors: Michael R. Gorman, Thomas R. LaLiberte
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Patent number: 6680102Abstract: The invention relates to a sheet of paper which includes at least one decorative pattern (14, 16) which contrasts visually against the sheet's background (12) and which has a first series of generally truncated protrusions (22) projecting from one side (13) of the sheet and aligned in a design. In the invention, the sheet (10) includes a second series of protrusions associated with the first series (22) and of which each protrusion assumes the approximate form of a low wall projecting from a side (13) of the sheet and having a height which is less than the height of the protrusions (22) of the first series and of which each (24) bridges the two adjacent protrusions (22) of the first series to enhance the visual perception of the decorative unit (14, 16).Type: GrantFiled: August 19, 2002Date of Patent: January 20, 2004Assignee: Georgia-Pacific FranceInventor: Pierre Graff
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Publication number: 20030200994Abstract: A cleaning/polishing pad has a first surface with raised, substantially nubs, having a length greater than a width, arranged adjacent each other forming laterally alternating rows of nubs and having troughs interspersed therebetween, a second surface opposite the first surface, and a thickness. The troughs, which may contain polishing/cleaning chemicals, are divided into first and second groups of substantially parallel troughs. The groups of troughs are arranged at an angle to one another forming a hatch pattern. The pad can be formed to make roller brushes, circular brushes or manual wipes. For the circular brushes the nubs are arranged adjacent each other forming laterally alternating concentric circles of nubs. Micropores are interspersed within the pad having a gradient of pores with smaller pores towards the first surface and larger pores towards the second. There are no sharp edges or corners in/on the pad.Type: ApplicationFiled: April 4, 2003Publication date: October 30, 2003Applicant: BERKSHIRE CORPORATIONInventor: Harald A. Bailey
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Patent number: 6578227Abstract: A cleaning/polishing pad has a first surface with raised, substantially nubs, having a length greater than a width, arranged adjacent each other forming laterally alternating rows of nubs and having troughs interspersed therebetween, a second surface opposite the first surface, and a thickness. The troughs, which may contain polishing/cleaning chemicals, are divided into first and second groups of substantially parallel troughs. The groups of troughs are arranged at an angle to one another forming a hatch pattern. The pad can be formed to make roller brushes, circular brushes or manual wipes. For the circular brushes the nubs are arranged adjacent each other forming laterally alternating concentric circles of nubs. Micropores are interspersed within the pad having a gradient of pores with smaller pores towards the first surface and larger pores towards the second. There are no sharp edges or corners in/on the pad.Type: GrantFiled: March 13, 2001Date of Patent: June 17, 2003Assignee: Berkshire CorporationInventor: Harald A. Bailey
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Patent number: 6565941Abstract: A flexible medium for a scrolling color changer and method of making thereof. The medium is made by applying an ink using a Meyer Rod which has varying cell lengths along its length. This leaves varying size cells of ink at different locations along the length of the medium. The ink has special characteristics whereby its evaporation rate and viscosity are carefully controlled. The viscosity is such that an amount of levelling will occur will be equal to the distance between any cells, but that cell to cell levelling will not, in general, occurs.Type: GrantFiled: May 16, 2000Date of Patent: May 20, 2003Assignee: Light and Sound Design Ltd.Inventor: William E. Hewlett
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Patent number: 6539629Abstract: A method for manufacturing a roller shaft of a computer character-cutting device and the roller shaft itself are disclosed, wherein, an engaging belt having on the surface thereof etched tooth grains is wrapped over the roller shaft, laser welding is processed at the joint of the engaging belt. The laser welding creates high temperature to melt the engaging belt, and the melting spots on the engaging belt are leveled, so that the engaging belt is integrally molten into the roller shaft to largely reduce steps and cost of production, and an effect of high accuracy of paper feeding can be obtained.Type: GrantFiled: January 26, 2001Date of Patent: April 1, 2003Assignee: Great Computer Corp.Inventor: Jin-Sheng Lai
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Patent number: 6436191Abstract: A corona discharge web conveyance roller (10) and process for finishing the surface (14) of the roller (10) with plateaus (30) and down features (22) adjacent to the plateaus. Interconnected channels (30) formed in the surface (14) of the roller (10) by overlapping down features (22) comprise at least 50% of the surface area while plateaus (30) comprise at least 20% to about 50% of the surface of the roller. Down features (22) have depths greater than about 12 microns but less than about 125 microns.Type: GrantFiled: June 13, 2000Date of Patent: August 20, 2002Assignee: Eastman Kodak CompanyInventors: Arthur M. Stewart, Brian S. Rice
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Publication number: 20020072458Abstract: A roller for use in a coating machine comprises a metal core 1 having a dielectric cover 2. The cover is provided with an engraved pattern of ridges and grooves. The core is also provided with a pattern in register with the pattern in the cover such that an electrostatic field generated above a web supported on the roller may be made substantially uniform.Type: ApplicationFiled: February 8, 2002Publication date: June 13, 2002Inventors: Andrew Clarke, Terry Blake
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Printing plate substrate and method of making a printing plate substrate or an offset printing plate
Patent number: 6324978Abstract: The invention relates to a printing plate substrate made of a rolled and embossed aluminum strip, wherein the surface has depressions with an average diameter of <25 &mgr;m and an aspect ratio of <1.5 (ratio length/width relative to the transport direction of the strip). The number of depressions is >2,500/mm2. The invention also relates to a method of making an aluminum printing plate substrate, wherein the surface of the aluminum strip is roughened using rollers. The surfaces of the rollers have microscopically small, stochastically distributed, dome-shaped projections. In cross-sectional view, the rollers have a round ridge-shaped roughness profile. The invention is also directed to an offset printing plate, wherein a printing plate substrate is produced with the method and provided with an anodically deposited oxide layer. A light-sensitive hydrophobic, oleophilic layer is deposited on the oxide layer.Type: GrantFiled: January 18, 2000Date of Patent: December 4, 2001Assignee: VAW aluminum AGInventors: Jürgen Kaulen, Wolfgang von Asten, Helmut Schmiedel, Barbara Grzemba -
Patent number: 6196958Abstract: A toner supply roll including a cylindrical soft polyurethane sponge structure which is integrally formed on a metal shaft and which has a hardness of not higher than 350 g, a network of cells, and a skin layer having openings which are open in its outer circumferential surface and which communicate with respective radially outermost ones of the cells located adjacent to the skin layer, wherein the openings have a size of 100-800 &mgr;m, and a total area percent of at least 20% of the total area of the outer circumferential surface of the skin layer, and the sponge structure has a plurality of helical protrusions formed on the outer circumferential surface of the skin layer so as to extend helically about an axis of the sponge structure, the helical protrusions being arranged in a circumferential direction of the sponge structure, so as to form a plurality of helical recesses each interposed between adjacent ones of the helical protrusions, so that helical protrusions and recesses cooperate to define a tootheType: GrantFiled: May 18, 1999Date of Patent: March 6, 2001Assignee: Tokai Rubber Industries, Ltd.Inventors: Keita Shiraki, Akihiko Kaji
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Patent number: 6178306Abstract: A method of fabricating a developer bearing body includes the steps of preparing metallic base material blasting the surface of the metallic base material using spherical particles and plating the surface of the metallic base material blasted, wherein a thickness of the plating layer is two or more times as large as a particle diameter in volume average of the developer.Type: GrantFiled: November 9, 1998Date of Patent: January 23, 2001Assignee: Canon Kabushiki KaishaInventors: Yoshito Mizoguchi, Takao Honda, Kazuo Suzuki, Nobuaki Hara
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Patent number: 6149564Abstract: A toner supply roll including a cylindrical soft polyurethane sponge structure formed on an outer circumferential surface of a metal shaft by foam molding of a polyurethane material in a mold cavity of a mold. The sponge structure having hardness of 350 g or lower includes a skin layer having a network of cells and openings open in its outer circumferential surface and communicating with respective ones of the cells located adjacent to the skin layer, such that the openings are substantially aligned with central portions of the respective ones of the cells in axial and circumferential directions of the sponge structure. Each opening has a size of 100-800 .mu.m, and a total area of the openings is at least 20% of the total surface area of the skin layer. The sponge structure has a plurality of protrusions formed on the outer circumferential surface of the skin layer so as to extend linearly or helically in the axial direction of the sponge structure. The protrusions have a height of 20-3000 .mu.Type: GrantFiled: July 15, 1998Date of Patent: November 21, 2000Assignee: Tokai Rubber Industries, Ltd.Inventors: Akitoshi Nozawa, Keita Shiraki
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Patent number: 5932313Abstract: Paper moving rollers, for use in printer or duplicating machines, particularly those using an autocompensating feed system, are disclosed. These rollers have a long effective life and provide reliable single feed of paper while minimizing double and multiple feeds. The rollers are made from a rubber composition comprising isoprene rubber, at least one ozone-resistant rubber, such as EPDM, and a rubber curing system substantially soluble in the rubber mixture. The process for moving paper in a printer or duplicating machine using these rollers is also disclosed.Type: GrantFiled: April 17, 1997Date of Patent: August 3, 1999Assignee: Lexmark International, Inc.Inventor: William H. Barton
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Patent number: 5797827Abstract: A printing material guiding surface structure, preferably for cylinders or cylinder dressings of printing machines has a surface structure which facilitates improved sheet guiding in that the friction forces at the contact points of the printing material and the surface structure are increased. This is achieved by utilizing elevated structure elements which are arranged on a substrate, and which have a bearing surface with a multiplicity of depressions that increase the surface roughness thereof and have good ink repelling characteristics.Type: GrantFiled: April 24, 1996Date of Patent: August 25, 1998Assignee: MAN Roland Druckmaschinen AGInventor: Werner Sondergeld
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Patent number: 5768668Abstract: A toner supply roll including a metal shaft and a cylindrical soft polyurethane sponge structure formed on an outer circumferential surface of the metal shaft by foam molding of a polyurethane material in a mold cavity of a mold. The sponge structure having a hardness of 350 g or lower includes a skin layer having generally smooth surface and openings, and a network of cells. The openings are open in the smooth surface and communicate with respective ones of the cells located adjacent to the skin layer, such that the openings are substantially aligned with central portions of the respective ones of the cells in axial and radial directions of the sponge structure. Each opening has a size within a range of 100-800 .mu.m, and a total area of the openings is at least 20% of a total area of the smooth surface of the skin layer. The method of producing the roll is also disclosed.Type: GrantFiled: February 3, 1997Date of Patent: June 16, 1998Assignee: Tokai Rubber Industries, Ltd.Inventors: Keita Shiraki, Saburou Hayashi, Akitoshi Nozawa, Mitsuyoshi Kondo
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Patent number: 5735388Abstract: A conveyor diverter system comprising one or more conveyors, components for diverter systems having friction-enhancing outer surfaces, friction-enhancing layers and compositions that provide such surfaces are disclosed. In addition, methods of reducing the frequency or occurrence of articles being misdiverted by use of such systems, components, layers and compositions are described. The preferred embodiment of the friction-enhancing layer and composition disposed on the outer periphery of the diverter components comprises grit materials dispersed in a metallic material such that a particular grit surface density is achieved and grit particles protrude above the uppermost surface of the metallic layer within a range of particular distances.Type: GrantFiled: May 7, 1997Date of Patent: April 7, 1998Assignee: Mannesmann Dematic Rapistan Corp.Inventor: Gerald A. Brouwer
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Patent number: 5689787Abstract: A small particle toner image is formed on a primary image member (21), such as a photoconductor; electrostatically transferred to an intermediate transfer member (42); and then electrostatically transferred to a receiving sheet. The intermediate transfer member (42) includes a substrate, a compliant blanket (19), and a thin, hard overcoat (80) sectioned into small, discreet segments (81).Type: GrantFiled: May 16, 1996Date of Patent: November 18, 1997Assignee: Eastman Kodak CompanyInventors: Thomas N. Tombs, Donald S. Rimai, David J. Quesnel, William B. Vreeland
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Patent number: 5633061Abstract: A flexible medium for a scrolling color changer and method of making thereof. The medium is made by applying an ink using a Meyer Rod which has varying cell lengths along its length. This leaves varying size cells of ink at different locations along the length of the medium. The ink has special characteristics whereby its evaporation rate and viscosity are carefully controlled. The viscosity is such that an amount of levelling will occur will be equal to the distance between any cells, but that cell to cell levelling will not, in general, occur.Type: GrantFiled: August 8, 1994Date of Patent: May 27, 1997Assignee: Light & Sound Design, Ltd.Inventor: William E. Hewlett
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Patent number: 5630495Abstract: A conveyor diverter system comprising one or more conveyors, components for diverter systems having friction-enhancing outer surfaces, friction-enhancing layers and compositions that provide such surfaces are disclosed. In addition, methods of reducing the frequency or occurrence of articles being misdiverted by use of such systems, components, layers and compositions are described. The preferred embodiment of the friction-enhancing layer and composition disposed on the outer periphery of the diverter components comprises grit materials dispersed in a metallic material such that a particular grit surface density is achieved and grit particles protrude above the uppermost surface of the metallic layer within a range of particular distances.Type: GrantFiled: November 18, 1996Date of Patent: May 20, 1997Assignee: Rapistan Demag Corp.Inventor: Gerald A. Brouwer
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Patent number: 5552235Abstract: An embossed cold rolled metal (e.g. steel) sheet for use in manufacturing appliances and method of making same wherein the surface attributes of the embossed sheet are optimized to improve corrosion resistance of the painted product, promote uniform paint coverage of the sheet surface, reduce paint consumption, enable repainting without loss of pattern crispness, and provide consistent and aesthetically pleasing appearance of the painted sheet. The embossed sheet has a plurality of plateaus and impressions defined therein in a manner such that the arithmetic average surface roughness (Ra) of the plateaus is from about 50 to 100 microinches, the maximum impression depths over a given area are from about 0.0025 to 0.0032 inches, the impression walls define maximum slopes of from about 8-17 degrees, and there are no sharp corners or ridges at the transition points between plateaus and impressions.Type: GrantFiled: March 23, 1995Date of Patent: September 3, 1996Assignee: Bethlehem Steel CorporationInventors: Adel F. Bastawros, John G. Speer, Leo J. Deistler, Eugene H. Schuchert