Patents by Inventor Peter Steven Alexandrovich
Peter Steven Alexandrovich 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: 9683064Abstract: A method of making a resin, includes forming an aqueous monomer droplet suspension, and colloidally stabilizing the suspension with a solid particulate material as the first stabilizer and poly(2-ethyl-2-oxazoline) as a second stabilizer. The method further includes heating the colloidally stabilized suspension to polymerize the monomer droplets, thereby forming the resin.Type: GrantFiled: September 30, 2015Date of Patent: June 20, 2017Assignee: EASTMAN KODAK COMPANYInventors: Peter David Rollinson, Peter Steven Alexandrovich, John Leonard Muehlbauer
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Publication number: 20170088648Abstract: A method of making a resin, includes forming an aqueous monomer droplet suspension, and colloidally stabilizing the suspension with a solid particulate material as the first stabilizer and poly(2-ethyl-2-oxazoline) as a second stabilizer. The method further includes heating the colloidally stabilized suspension to polymerize the monomer droplets, thereby forming the resin.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Inventors: Peter David Rollinson, Peter Steven Alexandrovich, John Leonard Muehlbauer
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Patent number: 9346260Abstract: A flexographic printing system uses a flexographic printing plate to produce printed patterns on a substrate. An ink recirculation system is used to reduce variability in system performance resulting from ink viscosity changes. A recirculation pump moves ink through an ink recirculation line connected to an ink reservoir. A metering pump adds a controlled flow rate of solvent from a solvent replenishment chamber into the ink recirculation line, thereby providing replenished ink which is returned to the ink reservoir. A control system is used to control the flow rate of solvent provided by the metering pump responsive to feature characteristics determined by analyzing a captured image of the printed pattern.Type: GrantFiled: January 24, 2014Date of Patent: May 24, 2016Assignee: EASTMAN KODAK COMPANYInventors: James Douglas Shifley, Peter Steven Alexandrovich, James Albert Reczek
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Patent number: 9327489Abstract: A method for controlling feature characteristics in a flexographic printing system that forms a printed pattern on a substrate by applying ink from an ink reservoir using a flexographic printing plate mounted on a plate cylinder. An imaging system is used to capture an image of the pattern printed on the substrate, and the captured image is analyzed to determine a feature characteristic of one or more features of the printed pattern. A control system automatically controls an amount of solvent used to replenish the ink in the ink reservoir responsive to the determined feature characteristic.Type: GrantFiled: January 24, 2014Date of Patent: May 3, 2016Assignee: EASTMAN KODAK COMPANYInventors: James Douglas Shifley, Peter Steven Alexandrovich, James Albert Reczek
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Patent number: 9233531Abstract: A flexographic printing system uses a flexographic printing plate to produce printed patterns on a substrate. An ink recirculation system is used to reduce variability in system performance resulting from ink viscosity changes. A recirculation pump moves ink through an ink recirculation line connected to an ink reservoir. A metering pump adds a controlled flow rate of solvent from a solvent replenishment chamber into the ink recirculation line, thereby providing replenished ink. The replenished ink is returned to the ink reservoir through a distribution tube that includes a plurality of supply ports at a plurality of spaced apart locations across a width of the ink reservoir. A control system is used to control the flow rate of solvent provided by the metering pump.Type: GrantFiled: January 24, 2014Date of Patent: January 12, 2016Assignee: EASTMAN KODAK COMPANYInventors: James Douglas Shifley, Peter Steven Alexandrovich, James Albert Reczek
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Patent number: 9207582Abstract: A method for reducing toning spacing sensitivity in an electrophotographic process is disclosed. The method includes providing a rotating magnetic member within a conductive non-magnetic development sleeve; providing a developer to the non-magnetic development sleeve for use with the rotating magnetic member including: (i) composite magnetic particles comprising strontium ferrite and lithium ferrite phases and (ii) toner particles. The method further includes moving a charged receiving medium into a toner transfer relationship with the developer on the non-magnetic development sleeve so as to provide a developed image on the receiving medium with reduced toning spacing sensitivity.Type: GrantFiled: September 25, 2014Date of Patent: December 8, 2015Assignee: EASTMAN KODAK COMPANYInventors: Peter Steven Alexandrovich, Patrick Maddock Lambert, Rodney Ray Bucks, Michael Thomas Dobbertin
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Patent number: 9182690Abstract: A method for reducing toning spacing sensitivity in an electrophotographic process is disclosed. The method includes providing a rotating magnetic member within a conductive non-magnetic development sleeve; providing a developer to the non-magnetic development sleeve for use with the rotating magnetic member including: i) hard magnetic particles with a coercivity of greater than 300 oersted and an induced moment of less than 20 emu per gram at an applied field of 1000 oersted; and ii) soft magnetic particles with a coercivity of less than 300 oersted and an induced moment of greater than 20 emu per gram an applied field of 1000 oersted; and iii) toner particles. The method further includes moving a charged receiving medium into a toner transfer relationship with the developer on the non-magnetic development sleeve so as to provide a developed image on the receiving medium with reduced toning spacing sensitivity.Type: GrantFiled: September 25, 2014Date of Patent: November 10, 2015Assignee: EASTMAN KODAK COMPANYInventors: Peter Steven Alexandrovich, Rodney Ray Bucks
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Publication number: 20150210060Abstract: A method for controlling feature characteristics in a flexographic printing system that forms a printed pattern on a substrate by applying ink from an ink reservoir using a flexographic printing plate mounted on a plate cylinder. An imaging system is used to capture an image of the pattern printed on the substrate, and the captured image is analyzed to determine a feature characteristic of one or more features of the printed pattern. A control system automatically controls an amount of solvent used to replenish the ink in the ink reservoir responsive to the determined feature characteristic.Type: ApplicationFiled: January 24, 2014Publication date: July 30, 2015Inventors: James Douglas Shifley, Peter Steven Alexandrovich, James Albert Reczek
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Publication number: 20150210063Abstract: A flexographic printing system uses a flexographic printing plate to produce printed patterns on a substrate. An ink recirculation system is used to reduce variability in system performance resulting from ink viscosity changes. A recirculation pump moves ink through an ink recirculation line connected to an ink reservoir. A metering pump adds a controlled flow rate of solvent from a solvent replenishment chamber into the ink recirculation line, thereby providing replenished ink which is returned to the ink reservoir. A control system is used to control the flow rate of solvent provided by the metering pump responsive to feature characteristics determined by analyzing a captured image of the printed pattern.Type: ApplicationFiled: January 24, 2014Publication date: July 30, 2015Inventors: James Douglas Shifley, Peter Steven Alexandrovich, James Albert Reczek
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Publication number: 20150210062Abstract: A flexographic printing system uses a flexographic printing plate to produce printed patterns on a substrate. An ink recirculation system is used to reduce variability in system performance resulting from ink viscosity changes. A recirculation pump moves ink through an ink recirculation line connected to an ink reservoir. A metering pump adds a controlled flow rate of solvent from a solvent replenishment chamber into the ink recirculation line, thereby providing replenished ink. The replenished ink is returned to the ink reservoir through a distribution tube that includes a plurality of supply ports at a plurality of spaced apart locations across a width of the ink reservoir. A control system is used to control the flow rate of solvent provided by the metering pump.Type: ApplicationFiled: January 24, 2014Publication date: July 30, 2015Inventors: James Douglas Shifley, Peter Steven Alexandrovich, James Albert Reczek
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Patent number: 8548356Abstract: An electrophotographic (EP) printer has two toner bottles. Each has a supply volume and a waste volume separated so that toner can pass from the waste volume to the supply volume, and has a status recorder with waste and supply states. An imaging member receives toner from the supply volume of a second toner bottle in a supply receptacle, and an imaging member applies the toner to a receiver to form a print image. A cleaning device removes toner from an imaging members and transporting the removed toner to the waste volume of a first toner bottle in a waste receptacle. A toggle changes the state of the status recorder of the first toner bottle in the waste receptacle to the supply state, so that the waste toner in the waste volume of the first toner bottle is made available to be used as supply toner in the supply receptacle.Type: GrantFiled: April 28, 2011Date of Patent: October 1, 2013Assignee: Eastman Kodak CompanyInventors: Alan Earl Rapkin, Jeffrey Allan Pitas, Peter Steven Alexandrovich, Donald Saul Rimai
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Publication number: 20120275826Abstract: An electrophotographic (EP) printer has two toner bottles. Each has a supply volume and a waste volume separated so that toner can pass from the waste volume to the supply volume, and has a status recorder with waste and supply states. An imaging member receives toner from the supply volume of a second toner bottle in a supply receptacle, and an imaging member applies the toner to a receiver to form a print image. A cleaning device removes toner from an imaging members and transporting the removed toner to the waste volume of a first toner bottle in a waste receptacle. A toggle changes the state of the status recorder of the first toner bottle in the waste receptacle to the supply state, so that the waste toner in the waste volume of the first toner bottle is made available to be used as supply toner in the supply receptacle.Type: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Inventors: ALAN EARL RAPKIN, Jeffrey Allan Pitas, Peter Steven Alexandrovich, Donald Saul Rimai
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Patent number: 6608641Abstract: A printer for printing color toner images on a receiver member of any of a variety of textures. The printer has a number of tandemly arranged electrophotographic image-forming modules respectively including a plurality of imaging subsystems to form a colored toner image transferred to a receiver member, the transfer of toner images from each of the modules forming a color print of the receiver member which is fused to form a desired color print. The image quality of the color print is produced by control of nonoperational co-optimization of fusing parameters and imaging subsystem parameters enabling printing on the variety of textures of receiver member.Type: GrantFiled: June 27, 2002Date of Patent: August 19, 2003Assignee: Nexpress Solutions LLCInventors: Peter Steven Alexandrovich, Richard George Allen, Muhammed Aslam, Jiann-Hsing Chen, Diane M. Herrick, Robert Arthur Lancaster, Yee Seung Ng, Joseph A. Pavlisko, Hwai-Tzuu Tai, Thomas Nathaniel Tombs