Patents by Inventor James H. Hurst
James H. Hurst has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8469685Abstract: The present invention provides an apparatus for allowing the resurfacing of a cylindrical member in a printer having a fuser member that is externally heated by a heater roller. The apparatus includes providing a cylindrical 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 cylindrical member is mounted in the place of the fuser member. The cylindrical member is rotated at a speed of at least 1 rpm while engaging the outer surface of the fuser member with the heater 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 the outer surface of the cylindrical member.Type: GrantFiled: December 17, 2008Date of Patent: June 25, 2013Assignee: Eastman Kodak CompanyInventors: James H. Hurst, Jiann-Hsing Chen, Donald S. Rimai, W. Charles Kasiske, Jr., Donna P. Suchy
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Publication number: 20130155148Abstract: A printing system includes a printing system component and a wick assembly affixed to the printing system component. The wick assembly includes at least one textile pad for collecting condensation that forms on a surface of the printing system component. A hydrophilic coating can be disposed over the surface of the printing system component.Type: ApplicationFiled: December 15, 2011Publication date: June 20, 2013Inventors: Borden H. Mills, III, Thomas A. Henderson, James H. Hurst, John L. Hryhorenko
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Publication number: 20130155147Abstract: A printing system includes a printing system component and a wick assembly affixed to the printing system component. The wick assembly includes at least one textile pad for collecting condensation that forms on a surface of the printing system component. A heater for heating the wick assembly can be disposed within, adjacent to, or in contact with the wick assembly.Type: ApplicationFiled: December 15, 2011Publication date: June 20, 2013Inventors: Borden H. Mills, III, Thomas A. Henderson, James H. Hurst, John L. Hryhorenko
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Publication number: 20130120494Abstract: A printing system includes one or more printing system components positioned opposite a moving print media. A wick assembly can be attached to a printing system component to wick condensation away from a surface of the printing system component that is opposite the moving print media. A heating element can be in contact with one or both of the wick assembly and a printing system component. A protective layer can be attached to the surface of a printing system component that is opposite the moving print media to prevent condensation from forming on the component. A vacuum assembly can be positioned opposite the moving print media to produce suction over the print media that pushes humid air or some condensation into the vacuum assembly.Type: ApplicationFiled: September 13, 2012Publication date: May 16, 2013Inventors: Borden H. Mills, III, Thomas A. Henderson, James H. Hurst, John L. Hryhorenko, W. Charles Kasiske, JR., Alan E. Rapkin, Timothy J. Hawryschuk, Andrew Ciaschi
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Patent number: 8422930Abstract: Apparatus for heating toner on a receiver having an ignition energy, having an energy source for providing input energy; and a membrane disposed adjacent to the receiver. The membrane receives the input energy from the energy source; stores a portion of the input energy; and radiates emitted energy that is absorbed by the toner, the receiver, or a combination thereof, wherein the absorption causes the temperature of the toner to rise above a desired temperature. The stored portion of the input energy is less than the ignition energy.Type: GrantFiled: March 25, 2010Date of Patent: April 16, 2013Assignee: Eastman Kodak CompanyInventors: James H. Hurst, Andrew Ciaschi, Donald S. Rimai, Carl I. Bouwens
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Publication number: 20120148274Abstract: Method of fixing marking particles to sheets having different basis weights in a continuous stream of receiver sheets, includes: providing two fixing members which engage each other to form a nip, at least one of the members being heated; and adjusting at least one parameter including temperature, speed, or pressure in the fixing nip, which will provide a predetermined gloss upon the sheet(s). The method further includes feeding the sheets of the higher basis weight through the nip so that the higher basis weight sheet(s) is fed more times through the nip than the other sheet(s); and applying marking particles to the prepared heavier basis weight sheets and passing them through the nip so that the gloss formed by the marking particles is substantially the same for heavier basis weight sheets as for lighter basis weight sheets.Type: ApplicationFiled: December 9, 2010Publication date: June 14, 2012Inventors: Jerry A. Pickering, James H. Hurst
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Patent number: 8177052Abstract: A sensor and controller for a belt moving about a path, the sensor and controller including an analog sensor including a medium that changes a characteristic to give a signal that varies continuously with any lateral belt edge position, thus yielding improved resolution of actual belt edge position, and a control mechanism responsive to the changes in characteristics of the medium for more accurate edge position control.Type: GrantFiled: December 15, 2009Date of Patent: May 15, 2012Assignee: Eastman Kodak CompanyInventors: James H. Hurst, Carl I. Bouwens
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Publication number: 20120020697Abstract: A method and an apparatus of fixing a heat curable toner to a carrier substrate are shown. In the method, a toner applied to a first surface of the carrier substrate is heated above the glass transition temperature of the toner by microwave radiation, using at least one microwave applicator as a first heat source, to thereby initiate thermal cross-linking of polymer chains of said toner. The temperature is kept above the glass transition temperature of the toner for a predetermined time of at least one second, by applying heat to the toner by means of at least one non-contact second heat source, to thereby allow the thermal cross-linking to proceed further and to thereby raise the glass transition temperature of the toner.Type: ApplicationFiled: December 9, 2008Publication date: January 26, 2012Inventors: Eric Carl Stelter, Dinesh Tyagi, James H. Hurst, Domingo Rohde, Knut Behnke, Detlef Schulze-Hagenest
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Publication number: 20110236093Abstract: Apparatus for heating toner on a receiver having an ignition energy, having an energy source for providing input energy; and a membrane disposed adjacent to the receiver. The membrane receives the input energy from the energy source; stores a portion of the input energy; and radiates emitted energy that is absorbed by the toner, the receiver, or a combination thereof, wherein the absorption causes the temperature of the toner to rise above a desired temperature. The stored portion of the input energy is less than the ignition energy.Type: ApplicationFiled: March 25, 2010Publication date: September 29, 2011Inventors: James H. Hurst, Andrew Ciaschi, Donald S. Rimai, Carl I. Bouwens
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Publication number: 20110139590Abstract: A sensor and controller for a belt moving about a path, the sensor and controller including an analog sensor including a medium that changes a characteristic to give a signal that varies continuously with any lateral belt edge position, thus yielding improved resolution of actual belt edge position, and a control mechanism responsive to the changes in characteristics of the medium for more accurate edge position control.Type: ApplicationFiled: December 15, 2009Publication date: June 16, 2011Inventors: James H. Hurst, Carl I. Bouwens
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Patent number: 7867678Abstract: A toner composition for fixing onto a receiver in conjunction with non-contact fuser capable of fusing one or more layers of toner on the receiver such that one or more toner layers reach a fusing temperature above a glass transition temperature. One or more cooling finish rollers are located downstream from the non-contact fuser to lower the toner temperature.Type: GrantFiled: June 2, 2009Date of Patent: January 11, 2011Assignee: Eastman Kodak CompanyInventors: Andrew Ciaschi, Dinesh Tyagi, James H. Hurst, Arun Chowdry, Eric C. Stelter, Robert D. Bobo, Muhammed Aslam
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Patent number: 7749413Abstract: The present invention provides a method of resurfacing a cylindrical member in a printer having a fuser member that is externally heated by a heater roller. The method includes providing a cylindrical 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 cylindrical member is mounted in the place of the fuser member. The cylindrical 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 cylindrical member.Type: GrantFiled: December 16, 2008Date of Patent: July 6, 2010Assignee: Eastman Kodak CompanyInventors: James H. Hurst, Jiann-Hsing Chen, Donald S. Rimai, W. Charles Kasiske, Jr., Donna P. Suchy
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Publication number: 20100151068Abstract: The present invention provides an apparatus for allowing the resurfacing a cylindrical member in a printer having a fuser member that is externally heated by a heater roller. The apparatus includes providing a cylindrical 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 cylindrical member is mounted in the place of the fuser member. The cylindrical 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 cylindrical member.Type: ApplicationFiled: December 17, 2008Publication date: June 17, 2010Inventors: James H. Hurst, Jiann-Hsing Chen, Donald S. Rimai, W. Charles Kasiske, JR., Donna P. Suchy
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Publication number: 20100148386Abstract: The present invention provides a method of resurfacing a cylindrical member in a printer having a fuser member that is externally heated by a heater roller. The method includes providing a cylindrical 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 cylindrical member is mounted in the place of the fuser member. The cylindrical 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 cylindrical member.Type: ApplicationFiled: December 16, 2008Publication date: June 17, 2010Inventors: James H. Hurst, Jiann-Hsing Chen, Donald S. Rimai, W. Charles Kasiske, JR., Donna P. Suchy
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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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Patent number: 7680424Abstract: Internally-heated external rollers transfer heat rapidly to a fuser roller in an electrostatographic printer. Stored media process set points, input image content and input media type data are used to regulate the heat transfer rate by varying the nip width between the heated external rollers and the fuser roller. The rate of heat transfer and the rate of heat transfer adjustment are sufficiently rapid that many different media weights and types may be mixed in a print run without restrictions on media run lengths, without collation requirements per run, and without productivity losses due to slowing of feed rate for heavier receivers.Type: GrantFiled: September 28, 2007Date of Patent: March 16, 2010Assignee: Eastman Kodak CompanyInventors: James H. Hurst, John L. Hryhorenko, Muhammed Aslam, Douglas J. Kostyk
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Publication number: 20090239172Abstract: An apparatus for fixing of toner onto a receiver, including: a non-contact fuser capable of fusing one or more layers of toner on a receiver such that one or more toner layers reach a fusing temperature above a glass transition temperature. The apparatus also includes one or more cooling finish rollers located downstream from the non-contact fuser to lower the toner temperature.Type: ApplicationFiled: June 2, 2009Publication date: September 24, 2009Inventors: Andrew Ciaschi, Dinesh Tyagi, James H. Hurst, Arun Chowdry, Eric C. Stelter, Robert D. Bobo, Muhammed Aslam
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Publication number: 20090087202Abstract: Internally-heated external rollers transfer heat rapidly to a fuser roller in an electrostatographic printer. Stored media process set points, input image content and input media type data are used to regulate the heat transfer rate by varying the nip width between the heated external rollers and the fuser roller. The rate of heat transfer and the rate of heat transfer adjustment are sufficiently rapid that many different media weights and types may be mixed in a print run without restrictions on media run lengths, without collation requirements per run, and without productivity losses due to slowing of feed rate for heavier receivers.Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Inventors: James H. Hurst, John L. Hryhorenko, Muhammed Aslam, Douglas J. Kostyk
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Publication number: 20080280035Abstract: The present invention provides a method of resurfacing a fuser member in-situ. The method includes providing a fuser 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 rotated at a speed of at least 1 rpm while engaging the outer surface of the fuser member with at least one heating roller 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 fuser member.Type: ApplicationFiled: May 9, 2007Publication date: November 13, 2008Inventors: Shyh-Hua E. Jao, Jiann-Hsing Chen, Muhammed Aslam, Joseph A. Pavlisko, James H. Hurst
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Publication number: 20070280758Abstract: An apparatus for fixing of toner onto a receiver, including: a non-contact fuser capable of fusing one or more layers of toner on a receiver such that one or more toner layers reach a fusing temperature above a glass transition temperature. The apparatus also includes one or more cooling finish rollers located downstream from the non-contact fuser to lower the toner temperature.Type: ApplicationFiled: June 1, 2006Publication date: December 6, 2007Inventors: Andrew Ciaschi, Dinesh Tyagi, James H. Hurst, Arun Chowdry, Eric C. Stelter, Robert D. Bobo, Muhammed Aslam