Repairing Or Servicing Patents (Class 29/895.1)
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Patent number: 10161454Abstract: A roller bearing replacement device for replacement or exchange of a roller bearing of a roller hearth furnace includes a housing that can be sealed off from the environment or external atmosphere that has a sluice through which access to the roller bearing of the roller hearth furnace that is to be replaced from the inside of the housing while excluding the external atmosphere is possible, and at least one roller bearing handling device that is designed for demounting and installing roller bearings and is arranged moveably in the housing and which can be at least partly moved out of the housing through the sluice. Roller bearing replacement or exchange is possible without the roller bearing getting tilted or twisted through its movement during demounting or assembly as the case may be in the roller hearth furnace.Type: GrantFiled: January 19, 2016Date of Patent: December 25, 2018Assignee: LOI Thermprocess GmbHInventors: Frank Balster, Horst Wachholder
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Patent number: 10161455Abstract: A roller bearing replacement device for replacement or exchange of a roller bearing of a roller hearth furnace includes a housing that can be sealed off against the external atmosphere with a sluice through which it is possible to access to a roller bearing of the roller hearth furnace that is to be demounted from inside the housing while excluding the environmental atmosphere, and at least one roller bearing handling device designed and constructed for demounting and installing roller bearings that is arranged in a moveable manner in the housing and can at least partly be moved out of the housing through the sluice. The sluice has a docking flange and a gas tightness monitoring arrangement, by means of which the gas-tightness of the docking connection on to the roller hearth furnace by the sluice can be monitored.Type: GrantFiled: January 19, 2016Date of Patent: December 25, 2018Assignee: LOI Thermprocess GmbHInventors: Frank Balster, Horst Wachholder
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Patent number: 9976598Abstract: A roller bearing replacement device with a housing that is sealed off is provided that has a sluice which can be coupled on a roller hearth furnace through which access to a roller bearing of the roller hearth furnace that is to be demounted is possible, and at least one roller bearing handling device which is arranged in a moveable manner inside the housing and can at least partly be moved out of the housing through the sluice. The housing has a cooling chamber designed for cooling of demounted roller bearings in which the at least one roller bearing handling device is constructed so that it can be moved at least between a replacement position and a cooling position.Type: GrantFiled: January 19, 2016Date of Patent: May 22, 2018Assignee: LOI Thermprocess GmbHInventors: Frank Balster, Horst Wachholder
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Publication number: 20150072846Abstract: A quick change conveyor roll assembly for metal or glass processing comprising an inner roll shaft having a rigid and elongated cylindrical surface supported and rotationally driven by an associate rotor mean. At least one removable spool having a cylindrical body with a first diameter, a hollow interior therethrough and a collar rigidly adapted at a first end, the collar having a second diameter whereby the second diameter is greater than the first diameter. At least one removable and replaceable insulated roll sleeve being slidably mounted over at least a portion of said removable spool and abutting said collar, the insulated roll sleeve including at least one layer of an insulation material and a securing means operably adjustable to hold said roll sleeve about said removable spool at a second end in a predetermined location on said inner roll shaft.Type: ApplicationFiled: November 18, 2014Publication date: March 12, 2015Applicant: PYROTEK, INC,Inventors: Timothy D. March, John A. Pokrzyk, JR., Daryll A. Hasco, Mark Bright
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Patent number: 8806753Abstract: Reconditioning is performed such that the curvature of the arcuate surface of the crest on the upper corrugating roll is increased as compared before conditioning. Further, reconditioning is performed such that the curvature of the arcuate surface of the crest on the lower corrugating roll is increased as compared before conditioning. In this step, polishing is performed so as to maintain the maximum diameter of the crest on the upper corrugating roll as much as possible. Thereby, since the length of the inclined surface of the corrugating roll connecting between a crest and a trough of the upper and lower corrugating rolls and is reduced, the rate of the increase in the consumption of corrugated mediums of fluted corrugated mediums for double-faced corrugated cardboard sheets shaped by the upper and lower corrugating rolls and after reconditioning can be reduced.Type: GrantFiled: December 13, 2010Date of Patent: August 19, 2014Assignee: Mitsubishi Heavy Industries Printing & Packaging Machinery, Ltd.Inventor: Takashi Nitta
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Publication number: 20140165404Abstract: Embodiments of the invention relates to a roller changing apparatus for changing a roller from a multiplicity of rollers in a furnace for the thermal treatment of components, wherein the roller changing apparatus has a housing which can be closed off and in which a first protective gas atmosphere can be formed, and a roller handling device which is arranged at least partially in the housing, and which is designed to remove the roller to be exchanged from the furnace and to fit a replacement roller in the furnace while maintaining a high temperature and a second protective gas atmosphere in the furnace during the roller change.Type: ApplicationFiled: July 25, 2012Publication date: June 19, 2014Inventors: Robert Ebner, Andreas Sauschlager
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Patent number: 8745870Abstract: A regenerated elastic rollers manufacturing process is provided. The process includes the step of removing an agglutinated stain of toner adhered to the surface of an elastic roller including a mandrel and an elastic layer. The step further includes the steps of: (1) pressing a pressing roller against the surface of the elastic roller so as to crack the agglutinated stain on the surface of the elastic roller; and (2) removing the agglutinated stain cracked in the step (1) from the surface of the elastic roller by means of an adhesive roller.Type: GrantFiled: April 13, 2012Date of Patent: June 10, 2014Assignee: Canon Kabushiki KaishaInventors: Kunimasa Kawamura, Masahiro Watanabe, Kazuaki Nagaoka
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Patent number: 8543031Abstract: There is disclosed a method for reconditioning an intermediate transfer member and the reconditioned intermediate transfer member. The method comprises stripping off an outer layer of the intermediate transfer member. A mixture of a polymer, conductive particles and a solvent is coated over the outer surface of a seamless intermediate transfer member. The mixture is heated to form a layer on the outer surface of the intermediate transfer belt. An apparatus for reconditioning an intermediate transfer member is also described.Type: GrantFiled: December 2, 2010Date of Patent: September 24, 2013Assignee: Xerox CorporationInventors: Dante M. Pietrantoni, Yuhua Tong, Jin Wu, Frank Mezzatesta, Jeremy J. Bean, Heiko Rommelmann, Jonathan H. Herko
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Patent number: 8528210Abstract: There is provided a universal magnet roller press apparatus, assembly, and method for removing and installing a magnet and a hub of a magnet roller of a toner printer cartridge. The apparatus has a mounting base, a screw drive assembly, an alignment cradle, a front support assembly, a back support assembly, and a first rod stop and a second rod stop. The assembly has the universal magnet roller press apparatus and a plurality of magnet roller adaptors for attached to the magnet roller during removal and installation of the magnet and the hub.Type: GrantFiled: August 18, 2010Date of Patent: September 10, 2013Assignee: Mitsubishi Kagaku Imaging CorporationInventors: Denny Holmes, Tigran Ohanyan
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Patent number: 8443516Abstract: The present invention relates to a refurbished cylinder roller and a process for refurbishing cylinder rollers for use in printing machines. More particularly, the present invention also relates to a process for refurbishing metallic gravure cylinder rollers by replacing the worn outer plating layers with an extruded and thermally cured electrically conductive polymer material, and thereafter electroplating new outer plating layers thereon, the new plating layers including a new printing image formed therein.Type: GrantFiled: July 20, 2010Date of Patent: May 21, 2013Assignee: Garry Machine Mfg. Inc.Inventors: Raghbir Bhullar, Nitin Padhye, David R. Campbell
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Publication number: 20130025127Abstract: A method of one of manufacturing and maintaining a grinding roll comprises removably attaching an article adapted for use as a wear resistant working surface to an external surface a cylindrical core. The article includes a metal matrix composite comprising a plurality of inorganic particles dispersed in a matrix material comprising a metal or a metal alloy. The melting temperature of the inorganic particles is greater than the melting temperature of the matrix material. Hard elements are embedded in the metal matrix composite. The wear resistance of the metal matrix composite is less than the wear resistance of the hard elements, and the metal matrix composite wears away when the grinding roll is in use, thereby providing or preserving gaps between the hard elements at a working surface of the roll.Type: ApplicationFiled: October 9, 2012Publication date: January 31, 2013Applicant: TDY Industries, LLCInventor: TDY Industries, LLC
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Patent number: 8316543Abstract: The invention relates to a method for reconditioning a used grinding roller of a material bed roller mill having profile-members which are embedded, with a portion of the length thereof, in holes of the roller body and, with the remainder of the length thereof, project above the surface of the roller body. For the reconditioning operation, after the worn profile-members are removed, the worn surface of the roller body is turned, and a material layer is applied in a welding operation and is provided with holes for receiving new profile-members. Such a method allows particularly cost-effective reconditioning.Type: GrantFiled: December 19, 2007Date of Patent: November 27, 2012Assignee: Polysius AGInventors: Norbert Patzelt, Johann Knecht, Herbert Pingel
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Publication number: 20120195649Abstract: A regenerated elastic rollers manufacturing process is provided. The process includes the step of removing an agglutinated stain of toner adhered to the surface of an elastic roller including a mandrel and an elastic layer. The step further includes the steps of: (1) pressing a pressing roller against the surface of the elastic roller so as to crack the agglutinated stain on the surface of the elastic roller; and (2) removing the agglutinated stain cracked in the step (1) from the surface of the elastic roller by means of an adhesive roller.Type: ApplicationFiled: April 13, 2012Publication date: August 2, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Kunimasa Kawamura, Masahiro Watanabe, Kazuaki Nagaoka
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Patent number: 8176632Abstract: A regenerated elastic rollers manufacturing process is provided. The process includes the step of removing an agglutinated stain of toner adhered to the surface of an elastic roller including a mandrel and an elastic layer. The step further includes the steps of: (1) pressing a pressing roller against the surface of the elastic roller so as to crack the agglutinated stain on the surface of the elastic roller; and (2) removing the agglutinated stain cracked in the step (1) from the surface of the elastic roller by means of an adhesive roller.Type: GrantFiled: July 24, 2008Date of Patent: May 15, 2012Assignee: Canon Kabushiki KaishaInventors: Kunimasa Kawamura, Masahiro Watanabe, Kazuaki Nagaoka
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Patent number: 8141239Abstract: A system for changing sleeves that can be pushed onto ink transfer roller cores of a printing machine includes at least one magazine, at least one travel device, and a drive. The magazine includes at least one sleeve mounting device that is movable relative to a frame of the magazine. The travel device is connectable to the magazine so that the magazine is movable in the vertical and/or horizontal direction. The drive, which is a component of the travel device, provides a drive force or drive torque to move the sleeve mounting device relative to the frame of the magazine.Type: GrantFiled: October 5, 2007Date of Patent: March 27, 2012Assignee: Windmoeller & Hoelscher KGInventor: Guenter Rogge
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Patent number: 7946518Abstract: The invention relates to a milling roller of a high-pressure material bed roller mill, having profile-members which are embedded with a portion of the length thereof in holes of the roller body and, with the remainder of the length thereof, protrude above the surface of the roller body, with, when the milling roller is new, the holes having different depths and the profile-members having different lengths in differently loaded part-regions of the width of the roller body. Such a construction brings about a long service-life for the roller and cost-effective reconditioning after operational wear with a production operation which reduces costs.Type: GrantFiled: March 26, 2008Date of Patent: May 24, 2011Assignee: Polysius AGInventors: Norbert Patzelt, Johann Knecht, Herbert Pingel
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Publication number: 20100126021Abstract: The present invention provides a method of resurfacing a pressure member in a printer having a fuser member that is externally heated by a heater roller. The method includes providing a pressure member having an outer surface of a high temperature fluorothermoplastic. When it is determined that the outer surface is in need of resurfacing, the fuser member is removed from the printer, and the pressure member is mounted in the place of the fuser member. The pressure member is rotated at a speed of at least 1 rpm while engaging the outer surface of the fuser member with the heating roller normally used to heat the fuser member at a pressure of at least 5 psi at a temperature of at least 10° C. below the fluorothermoplastic melting temperature for a time sufficient to resurface of the outer surface of the pressure member.Type: ApplicationFiled: November 25, 2008Publication date: May 27, 2010Inventors: James H. Hurst, Shyh-Hua E. Jao, Jiann-Hsing Chen, Muhammed Aslam, Joseph A. Pavlisko
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Publication number: 20100059614Abstract: The invention relates to a milling roller of a high-pressure material bed roller mill, having profile-members which are embedded with a portion of the length thereof in holes of the roller body and, with the remainder of the length thereof, protrude above the surface of the roller body, with, when the milling roller is new, the holes having different depths and the profile-members having different lengths in differently loaded part-regions of the width of the roller body. Such a construction brings about a long service-life for the roller and cost-effective reconditioning after operational wear with a production operation which reduces costs.Type: ApplicationFiled: March 26, 2008Publication date: March 11, 2010Applicant: POLYSIUS AGInventors: Norbert Patzelt, Johann Knecht, Herbert Pingel
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Publication number: 20090178280Abstract: The invention relates to a method for reconditioning a used grinding roll of a high-pressure bed grinding mill. In said method, the surface of the rolling body is turned by a certain degree after removing the worn profiled members, whereupon the existing bores can be deepened to a depth that is sufficient for receiving new profiled members or new bores can be created according to a new bore pattern. New profiled members are then inserted into the bores. The inventive method allows a used grinding roll to be reconditioned in a particularly time-saving manner while economizing material.Type: ApplicationFiled: May 23, 2007Publication date: July 16, 2009Inventors: Norbert Patzelt, Herbert Pingel, Johann Knecht
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Publication number: 20090094835Abstract: A supporting bearing is replaced with a new supporting bearing by conducting a first step and a second step. In the first step., an old inner ring before replacement is replaced with a new inner ring having an inner ring raceway diameter same as the old inner ring, and an axial length of an inner ring raceway face longer than the old inner ring so that a rolling roll is supported by this new inner ring in combination with an old outer ring and old cylindrical rollers. Thereafter, in the second step, the old cylindrical rollers are replaced with new cylindrical rollers having an axial length longer than the old cylindrical rollers, and simultaneously, the old outer ring is replaced with a new outer ring having an axial length of an outer ring raceway face longer than the old outer ring.Type: ApplicationFiled: October 14, 2008Publication date: April 16, 2009Applicant: JTEKT CorporationInventors: Junichi Kubo, Nobuya Suzuki
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Patent number: 7356280Abstract: An electrophotographic photoreceptor including a cylindrical substrate including a photosensitive layer on an outer circumferential surface thereof and a flange adhesively fixed to at least one end of the cylindrical substrate. The flange has a joint to which a separation jig is applied to apply a tensility in a direction of separating the flange from the cylindrical substrate. A method of recycling the electrophotographic photoreceptor fills an elastic body with a fluid to inflate and contact the elastic body at the outer circumferential surface of the electrophotographic photoreceptor upon application of pressure to grasp the electrophotographic photoreceptor in the jig, and the jig is applied to the joint to pull the flange in a direction of separating the flange from the cylindrical substrate.Type: GrantFiled: June 19, 2007Date of Patent: April 8, 2008Assignee: Ricoh Company, Ltd.Inventors: Tetsuya Kusano, Makoto Okuzawa, Naoyoshi Kusano, Junichi Yamazaki
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Patent number: 7308762Abstract: Methods and apparatuses for rotatably supporting movable components, including canards. An apparatus in accordance with one embodiment of the invention includes an airfoil configured positioned external to an aircraft fuselage. A connecting portion can depend from the airfoil portion and can have an attachment portion configured to attach to an aircraft internal to the aircraft fuselage. Rollers carried by one of the connecting portion and the fuselage can rotatably contact a track carried by the other of the connecting portion and the fuselage.Type: GrantFiled: December 14, 2004Date of Patent: December 18, 2007Assignee: The Boeing CompanyInventors: David L. Bath, Kelly T. Jones, P. Brian McKinney, Joseph R. Pineda
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Patent number: 7296763Abstract: A grinder roll assembly (500) is provided herein. The grinder roll assembly (500) includes a grinder roll (505), a shaft (510) in a through bore of the grinder roll, a first tapered sleeve (615A), and a second tapered sleeve (615B). The first tapered sleeve (615A) fits between the shaft (510) and the grinder roll (505) in one direction, and the second tapered sleeve (615B) fits between the shaft (510) and the grinder roll (505) in an opposite direction to form at least one friction lock that mounts the grinder roll (505) to the shaft (510).Type: GrantFiled: May 3, 2005Date of Patent: November 20, 2007Assignee: ALSTOM Technology LtdInventors: Theron J. Bliss, Jeffrey A. Case, Robert R. Tobiasz
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Patent number: 7280783Abstract: An electrophotographic photoreceptor including a cylindrical substrate including a photosensitive layer on an outer circumferential surface thereof and a flange adhesively fixed to at least one end of the cylindrical substrate. The flange has a joint to which a separation jig is applied to apply a tensility in a direction of separating the flange from the cylindrical substrate. A method of recycling the electrophotographic photoreceptor fills an elastic body with a fluid to inflate and contact the elastic body at the outer circumferential surface of the electrophotographic photoreceptor upon application of pressure to grasp the electrophotographic photoreceptor in the jig, and the jig is applied to the joint to pull the flange in a direction of separating the flange from the cylindrical substrate.Type: GrantFiled: November 5, 2004Date of Patent: October 9, 2007Assignee: Ricoh Company, Ltd.Inventors: Tetsuya Kusano, Makoto Okuzawa, Naoyoshi Kusano, Junichi Yamazaki
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Patent number: 7096556Abstract: A recycling method of a part for an image forming apparatus, the part being used in the image forming apparatus and provided with a thermoplastic resin member at least in a part thereof is provided which includes: recovering the part for the image forming apparatus; disassembling the recovered part for the image forming apparatus; retrieving the thermoplastic resin member from the disassembled part for the image forming apparatus; and performing heat processing to the retrieved thermoplastic resin member to recycle the member.Type: GrantFiled: February 20, 2003Date of Patent: August 29, 2006Assignee: Fuji Xerox Co., LTDInventors: Miharu Endo, Toshiaki Murofushi, Fumitaka Nakajima, Shinichiro Saito, Jun Tsuda, Masaharu Boshu
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Patent number: 6975822Abstract: A recycle developer bearing body which is an effective recycle of a used developer bearing body, helps effective utilization of resources, and does not result in image quality degradation, such as developer concentration unevenness. In the recycle developer bearing body, even when scars or other defects are developed on a developer bearing surface of the developer bearing body from previous use, a surface roughness Ra of the developer bearing surface having the scars or other defects of the developer bearing body is 0.8 ?m or more.Type: GrantFiled: June 17, 2003Date of Patent: December 13, 2005Assignee: Fuji Xerox Co., Ltd.Inventors: Taku Kunou, Shinichiro Saito, Toshiaki Murofushi, Kazunari Koga, Toshinori Nozaki
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Patent number: 6811524Abstract: 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 outer surface. The covering layer includes an elastic matrix material. The elastic matrix material includes a mixture of at least one thermosetting plastic and at least one thermoplastic. The process of making includes providing a roll core having an outer surface, forming an elastic covering layer including at least one thermosetting plastic and at least one thermoplastic, and applying the covering layer to the outer surface of the roll core. The process of repairing includes heating an elastic covering layer made from an elastic matrix material which comprises at least one thermosetting plastic and at least one thermoplastic, and allowing any markings in a surface of the covering layer to be filled.Type: GrantFiled: January 16, 2001Date of Patent: November 2, 2004Assignee: Voith Paper Patent GmbHInventor: Lothar Zimmermann
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Publication number: 20040158987Abstract: An elastic roller casing is replaced on a roller core by first removing the casing and a portion of a fastening layer, thereby reducing at least part of the fastening layer in thickness, centering a new casing on the core over the partly removed fastening layer, and then filling any remaining intermediate space between the partly removed fastening layer and the casing with a material to connect the casing to the partly removed fastening layer.Type: ApplicationFiled: October 31, 2003Publication date: August 19, 2004Applicant: Huber & Suhner AGInventors: Bruno Broger, Roland Schanzer, Andreas Ruedi
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Patent number: 6651337Abstract: Process for exchanging an intermediate roll in a calender and a calender. The calender has more than three rolls arranged to form a pressing plane obliquely oriented at a predetermined angle to a vertical, the intermediate roll to be exchanged being positioned immediately above a neighboring roll. The process includes lowering the neighboring roll at least a distance h defined by the equation: h=(r1+r2)(1−cos &agr;), in which r1 is a radius of the intermediate roll, r2 is a radius of the neighboring roll, and &agr; is the predetermined angle, and substantially horizontally removing the intermediate roll to be exchanged.Type: GrantFiled: August 21, 2001Date of Patent: November 25, 2003Assignee: Voith Paper Patent GmbHInventor: Markus Kirchner
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Patent number: 6560414Abstract: In a photoreceptor for an image forming apparatus including a charging device, a relationship between a thickness “A” of a surface portion of a photosensitive layer abraded by image forming operations, a thickness “B” of a portion of the photosensitive layer ground by an operation of grinding the abraded surface of the photosensitive layer, a number of times “n” the operation of grinding the abraded surface of the photosensitive layer has been executed, and an original photosensitive layer thickness “C” of the photoreceptor is set such that a thickness “D” of a remaining portion of the photosensitive layer after having been ground which is obtained by equation: D=C−[(A+B)×n+A], is equal to or greater than a thickness of the photosensitive layer in which leakage from the charging device to the photoreceptor does not occur, so that the photoreceptor may be reused.Type: GrantFiled: November 21, 2001Date of Patent: May 6, 2003Assignee: Ricoh Company, Ltd.Inventors: Takeo Suda, Takeshi Saitou, Masaki Narita, Shinji Nagatsuna, Kenichi Shishido
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Publication number: 20020185241Abstract: This invention relates to a method of repairing a moisture barrier separating a paper machine dryer drum from the dryer journal. Such processes of this type, generally, involve filling the cavity between the dryer drum steam intake pipe and the dryer journal with a flowable moisture barrier material.Type: ApplicationFiled: May 7, 2002Publication date: December 12, 2002Inventor: Frank Joseph Lokant
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Patent number: 6493526Abstract: A charging roller is constituted of a shaft, a conductive elastic cylinder, and a charging layer. The shaft is integrally covered with the conductive elastic cylinder. Further, the conductive elastic cylinder is integrally covered with the charging layer. The charging roller formed in this way is restored such that it is loosely encased in a seamless charging tube having semi-conductivity.Type: GrantFiled: August 15, 2001Date of Patent: December 10, 2002Assignee: Keytech Co., Ltd.Inventor: Masamichi Sato
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Patent number: 6484001Abstract: A process is presented for recycling a toner cartridge, including a used magnetic roller and a used doctor blade. The process requires: (1) removal of the doctor blade and magnetic roller from the cartridge; (2) treatment of the doctor blade to restore the shape of said doctor blade; (3) coating of the doctor blade and magnetic roller with an antistatic and anti abrasive coating; and (4) placement of the doctor blade and magnetic roller back into the cartridge. Additional processes involving reuse of other toner cartridge components are also described.Type: GrantFiled: April 19, 2001Date of Patent: November 19, 2002Assignee: CF TechnologiesInventor: Gino Sirejacob
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Patent number: 6344100Abstract: A method of resurfacing a traction roll to provide a friction surface to replace a worn surface. A supply reel of metal strip material is continuously unwound from a supply reel and rewound on a take-up reel. Between the reels, the unwound strip passes through a treating station at which a surface of the strip is prepared for coating and is then coated by one or two sprays of various types of thermal spray equipment as the applicator, with a polymer coating sometimes applied as a top coating. The take-up reel with the coated strip is then transported to a facility where the traction roll is located. The traction roll is then prepared for winding of the strip thereonto. The strip is wound helically onto the traction roll and secured thereto by doublesided adhesive tape disposed between and attached to the roll surface and the metal strip. In a modification, the strip is fed through the treating location in contact with an arcuate surface of a mandrel to impart curvature to the strip.Type: GrantFiled: September 29, 1999Date of Patent: February 5, 2002Inventor: Robert A. Hipskind
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Patent number: 6289587Abstract: There is disclosed a method for reusing a fuser member containing an outer layer having an original fusing surface that is deficient including: removing a portion of the thickness of the outer layer including the original fusing surface to create on the remaining outer layer a new fusing surface.Type: GrantFiled: June 12, 1997Date of Patent: September 18, 2001Assignee: Xerox CorporationInventors: David Battat, Santokh S. Badesha, Clifford O. Eddy, Louis D. Fratangelo, Arnold W. Henry, Alan R. Kuntz