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公开(公告)号：US11478991B2
公开(公告)日：2022-10-25
申请号：US16903813
申请日：2020-06-17
Applicant: XEROX CORPORATION
Inventor： Christopher Douglas Atwood , Erwin Ruiz , David M. Kerxhalli , Douglas K. Herrmann , Linn C. Hoover , Derek A. Bryl , Ali R. Dergham
IPC: B29C64/393 , G01K13/10 , G01K15/00 , B33Y50/00 , B33Y50/02 , B29C64/188 , B33Y10/00 , B29C64/386 , B22F10/85 , G01K7/08 , B22F12/10 , B22F12/20 , B22F12/90 , B33Y30/00
Abstract: A system for determining a temperature of an object includes a three-dimensional (3D) printer configured to successively deposit a first layer of material, a second layer of material, and a third layer of material to form the object. The 3D printer is configured to form a recess in the second layer of material. The material is a metal. The system also includes a temperature sensor configured to be positioned at least partially with the recess and to have the third layer deposited thereon. The temperature sensor is configured to measure a temperature of the first layer of material, the second layer of material, the third layer of material, or a combination thereof.
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公开(公告)号：US20210008907A1
公开(公告)日：2021-01-14
申请号：US16508599
申请日：2019-07-11
Applicant: Xerox Corporation
Inventor： David M. Kerxhalli
Abstract: A method of operating a printer repetitively merges a purge sheet into a media stream of a job stream in the printer so the controller of the printer can operate inactive inkjets and eject ink onto the purge sheet to maintain the operational status of the inactive inkjets. The purge sheet has a width that is at least the maximum width of a print zone in the printer in the cross-process direction and a length that is less than a length of any media sheet in the job stream in the process direction. The purge sheet is diverted through a duplex path in the printer to repetitively merge the purge sheet into the media stream of the job stream to maintain the operational status of the inactive inkjets.
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公开(公告)号：US20200171855A1
公开(公告)日：2020-06-04
申请号：US16204326
申请日：2018-11-29
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , James P. Calamita , David M. Kerxhalli
Abstract: A printing system includes a pair of encoders to compensate for encoder noise in the velocity of a media transport as the transport moves past a plurality of printheads. One encoder monitors a roller that positioned at a location of low thermal stress and the signal generated by this encoder is used by a controller to maintain a constant velocity for the media transport. The second encoder monitors a roller used to drive the media transport and is positioned close to the print zone opposite the printheads. The signal from the second encoder is used to identify a corrected distance between each tic in the tics generated by the second encoder and the corrected distance is used to count a firing distance for generation of a dot clock signal to activate ejectors in a printhead when a substrate has traveled the firing distance.
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公开(公告)号：US11499873B2
公开(公告)日：2022-11-15
申请号：US16903855
申请日：2020-06-17
Applicant: XEROX CORPORATION
Inventor： Christopher Douglas Atwood , Erwin Ruiz , David M. Kerxhalli , Douglas K. Herrmann , Linn C. Hoover , Derek A. Bryl , Ali R. Dergham
Abstract: A method for determining a temperature of an object includes contacting the object with a first electrical conductor. A difference in electronegativity between the object and the first electrical conductor is greater than a predetermined value. The method also includes contacting the object or a substrate on which the object is positioned with a second electrical conductor. A difference in electronegativity between the object or the substrate and the second electrical conductor is less than the predetermined value. The method also includes connecting the first and second electrical conductors together. The method also includes measuring the temperature of the object using the first and second electrical conductors. The first and second electrical conductors form at least a portion of a thermocouple.
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5.发明授权公开(公告)号：US11307099B2
公开(公告)日：2022-04-19
申请号：US16903835
申请日：2020-06-17
Applicant: XEROX CORPORATION
Inventor： Christopher Douglas Atwood , Erwin Ruiz , David M. Kerxhalli , Douglas K. Herrmann , Linn C. Hoover , Derek A. Bryl , Ali R. Dergham
Abstract: An object printed by a three-dimensional (3D) printer includes a plurality of layers of material printed by the 3D printer. The layers of material bond together to form the object as the layers of material cool and solidify after being printed by the 3D printer. The object also includes a temperature sensor placed in contact with one or more of the layers when the layers of material are being printed by the 3D printer. The temperature sensor remains in contact with the object after the layers of material cool and solidify to form the object. The temperature sensor is configured to measure a temperature of the object after the layers of material cool and solidify to form the object.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20210396593A1
公开(公告)日：2021-12-23
申请号：US16903835
申请日：2020-06-17
Applicant: XEROX CORPORATION
Inventor： Christopher Douglas Atwood , Erwin Ruiz , David M. Kerxhalli , Douglas K. Herrmann , Linn C. Hoover , Derek A. Bryl , Ali R. Dergham
Abstract: An object printed by a three-dimensional (3D) printer includes a plurality of layers of material printed by the 3D printer. The layers of material bond together to form the object as the layers of material cool and solidify after being printed by the 3D printer. The object also includes a temperature sensor placed in contact with one or more of the layers when the layers of material are being printed by the 3D printer. The temperature sensor remains in contact with the object after the layers of material cool and solidify to form the object. The temperature sensor is configured to measure a temperature of the object after the layers of material cool and solidify to form the object.
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公开(公告)号：US20210396591A1
公开(公告)日：2021-12-23
申请号：US16903855
申请日：2020-06-17
Applicant: XEROX CORPORATION
Inventor： Christopher Douglas Atwood , Erwin Ruiz , David M. Kerxhalli , Douglas K. Herrmann , Linn C. Hoover , Derek A. Bryl , Ali R. Dergham
Abstract: A method for determining a temperature of an object includes contacting the object with a first electrical conductor. A difference in electronegativity between the object and the first electrical conductor is greater than a predetermined value. The method also includes contacting the object or a substrate on which the object is positioned with a second electrical conductor. A difference in electronegativity between the object or the substrate and the second electrical conductor is less than the predetermined value. The method also includes connecting the first and second electrical conductors together. The method also includes measuring the temperature of the object using the first and second electrical conductors. The first and second electrical conductors form at least a portion of a thermocouple.
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公开(公告)号：US20210394448A1
公开(公告)日：2021-12-23
申请号：US16903813
申请日：2020-06-17
Applicant: XEROX CORPORATION
Inventor： Christopher Douglas Atwood , Erwin Ruiz , David M. Kerxhalli , Douglas K. Herrmann , Linn C. Hoover , Derek A. Bryl , Ali R. Dergham
IPC: B29C64/393 , B29C64/205 , B29C64/371 , G01K13/10 , G01K15/00
Abstract: A system for determining a temperature of an object includes a three-dimensional (3D) printer configured to successively deposit a first layer of material, a second layer of material, and a third layer of material to form the object. The 3D printer is configured to form a recess in the second layer of material. The material is a metal. The system also includes a temperature sensor configured to be positioned at least partially with the recess and to have the third layer deposited thereon. The temperature sensor is configured to measure a temperature of the first layer of material, the second layer of material, the third layer of material, or a combination thereof.
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公开(公告)号：US10752028B2
公开(公告)日：2020-08-25
申请号：US16204326
申请日：2018-11-29
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , James P. Calamita , David M. Kerxhalli
Abstract: A printing system includes a pair of encoders to compensate for encoder noise in the velocity of a media transport as the transport moves past a plurality of printheads. One encoder monitors a roller that positioned at a location of low thermal stress and the signal generated by this encoder is used by a controller to maintain a constant velocity for the media transport. The second encoder monitors a roller used to drive the media transport and is positioned close to the print zone opposite the printheads. The signal from the second encoder is used to identify a corrected distance between each tic in the tics generated by the second encoder and the corrected distance is used to count a firing distance for generation of a dot clock signal to activate ejectors in a printhead when a substrate has traveled the firing distance.
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10.发明申请公开(公告)号：US20220205845A1
公开(公告)日：2022-06-30
申请号：US17655246
申请日：2022-03-17
Applicant: XEROX CORPORATION
Inventor： Christopher Douglas Atwood , Erwin Ruiz , David M. Kerxhalli , Douglas K. Herrmann , Linn C. Hoover , Derek A. Bryl , Ali R. Dergham
Abstract: An apparatus includes one or more layers of material printed by a three-dimensional (3D) printer. The one or more layers cool and solidify to form an object after being printed by the 3D printer. At least one of the one or more layers includes greater than 50% metal. The apparatus also includes a first temperature sensor in contact with the object. The first temperature sensor measures the temperature of the material while the object is being printed by the 3D printer, after the object has been printed by the 3D printer, or both.
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