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公开(公告)号：US11440321B2
公开(公告)日：2022-09-13
申请号：US16712618
申请日：2019-12-12
Applicant: XEROX CORPORATION
Inventor： Christopher T. Chungbin , Scott J. Vader , Zachary S. Vader , Kareem N. Tawil , William R. Harris , David A. Mantell , Viktor Sukhotskiy
IPC: B29C64/209 , B29C64/112 , B33Y70/00 , B41J2/14 , B33Y10/00 , B33Y30/00 , B22D23/00 , B28B1/00
Abstract: A jetting assembly that can be used to print a high-temperature print material such as a metal or metal alloy, an aqueous ink, or another material, includes an actuator for heating a gas such as a non-volatile gas within a gas cavity. The actuator rapidly heats the gas within the gas cavity, which rapidly increases a volume of the gas, thereby applying a pressure to the print material within an expansion channel that is in fluid communication with the gas cavity. In turn, the print material within the expansion channel applies a pressure to the print material within a nozzle bore, which forces a drop of the print material from a nozzle. The jetting assembly further includes a supply inlet that supplies the print material to the expansion chamber and the nozzle bore, for example, from a reservoir.
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公开(公告)号：US20220234298A1
公开(公告)日：2022-07-28
申请号：US17157568
申请日：2021-01-25
Applicant: Xerox Corporation , Palo Alto Research Center Incorporated
Inventor： Stuart A. Schweid , David A. Mantell , PriyaankaDevi Guggilapu , David G. Tilley , Christopher T. Chungbin , Walter Hsiao , Dinesh Krishna Kumar Jayabal , Daniel Cormier
IPC: B29C64/393 , B29C64/112 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: A slicer in a material drop ejecting three-dimensional (3D) object printer identifies the positions and local densities for a plurality of infill lines within a perimeter to be formed within a layer of an object to be formed by the printer. The local density of each infill line is filtered and a control law is applied to the filtered local density to identify an error in the local density compared to a target density. This process is performed iteratively until the error is within a predetermined tolerance range about the target local density. The error is used to generate machine ready instructions to operate the 3D object printer to achieve the target density for the infill lines.
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公开(公告)号：US20220032550A1
公开(公告)日：2022-02-03
申请号：US16945509
申请日：2020-07-31
Applicant: Xerox Corporation
Inventor： David A. Mantell , Christopher T. Chungbin , Daniel R. Cormier , Denis Cormier , Manoj Meda , Dinesh Krishna Kumar Jayabal
IPC: B29C64/393 , B29C64/112 , B29C64/209 , B33Y50/02 , B33Y70/00 , B33Y80/00
Abstract: A three-dimensional (3D) metal object manufacturing apparatus selects operational parameters for operation of the printer to form conductive metal traces on substrates with dimensions within appropriate tolerances and with sufficient conductive material to carry electrical currents without burning up or becoming too hot. The apparatus identifies the material of the substrate and the bulk metal being melted for ejection and uses this identification data to select the operational parameters. Thus, the apparatus can form conductive traces and circuits on a wide range of substrate materials including polymeric substrates, semiconductor materials, oxide layers on semiconductor materials, glass, and other crystalline materials.
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公开(公告)号：US20210069778A1
公开(公告)日：2021-03-11
申请号：US17017447
申请日：2020-09-10
Applicant: XEROX CORPORATION
Inventor： Gary D. Redding , Lyle G. Dingman , Mark A. Cellura , Peter M. Gulvin , Christopher T. Chungbin , Chu-Heng Liu
Abstract: Nozzles for additive manufacturing and methods for improving wettability of the nozzles are disclosed. The nozzle may include a body having an inner surface and an outer surface. The inner surface may define an inner volume of the nozzle, and may have a water contact angle of greater than 1° and less than about 90°. The method may include subjecting the nozzle to a surface treatment. The surface treatment may include plasma treating a surface of the nozzle such that free radicals, polar functional groups, or a combination thereof are formed at the surface of the nozzle.
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公开(公告)号：US11760028B2
公开(公告)日：2023-09-19
申请号：US17163355
申请日：2021-01-30
Applicant: Xerox Corporation
Inventor： Rachel L. Tanchak , Erwin Ruiz , Brendan McNamara , Piotr Sokolowski , Jack G. Elliot , Ka H. Fung , Derek A. Bryl , Douglas E. Proctor , Christopher T. Chungbin , Peter M. Gulvin
IPC: B29C64/393 , B29C64/112 , B33Y50/02 , B33Y30/00 , B33Y10/00
CPC classification number: B29C64/393 , B29C64/112 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: A material drop ejecting three-dimensional (3D) object printer identifies a time lag error corresponding to a time lag in the response of printer components to component commands. The identified time lag error is provided to a slicer program that uses the identified time lag error to compensate for the time lag in the response of the printer components.
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Patent Agency Ranking
公开(公告)号：US11731366B2
公开(公告)日：2023-08-22
申请号：US16945509
申请日：2020-07-31
Applicant: Xerox Corporation
Inventor： David A. Mantell , Christopher T. Chungbin , Daniel R. Cormier , Denis Cormier , Manoj Meda , Dinesh Krishna Kumar Jayabal
IPC: B29C64/393 , B33Y50/02 , B33Y70/00 , B33Y80/00 , B29C64/112 , B29C64/209 , B22F12/53 , B22F10/85 , B22F10/22
CPC classification number: B29C64/393 , B22F10/22 , B22F10/85 , B22F12/53 , B29C64/112 , B29C64/209 , B33Y50/02 , B33Y70/00 , B33Y80/00
Abstract: A three-dimensional (3D) metal object manufacturing apparatus selects operational parameters for operation of the printer to form conductive metal traces on substrates with dimensions within appropriate tolerances and with sufficient conductive material to carry electrical currents without burning up or becoming too hot. The apparatus identifies the material of the substrate and the bulk metal being melted for ejection and uses this identification data to select the operational parameters. Thus, the apparatus can form conductive traces and circuits on a wide range of substrate materials including polymeric substrates, semiconductor materials, oxide layers on semiconductor materials, glass, and other crystalline materials.
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公开(公告)号：US11673198B2
公开(公告)日：2023-06-13
申请号：US17163368
申请日：2021-01-30
Applicant: Xerox Corporation
Inventor： Jack G. Elliot , Rachel L. Tanchak , Derek A. Bryl , Piotr Sokolowski , Erwin Ruiz , David A. Mantell , Brendan McNamara , Peter M. Gulvin , Christopher T. Chungbin
Abstract: A slicer in a material drop ejecting three-dimensional (3D) object printer generates machine ready instructions that operate components of a printer, such as actuators and an ejector having at least one nozzle, to form features of an object more precisely than previously known. The instructions generated by the slicer use positional data from an encoder to control the actuators to move the ejector and a platform on which the object is formed relative to one another to form edges of the feature.
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公开(公告)号：US11660822B2
公开(公告)日：2023-05-30
申请号：US17157568
申请日：2021-01-25
Applicant: Xerox Corporation , Palo Alto Research Center Incorporated
Inventor： Stuart A. Schweid , David A. Mantell , PriyaankaDevi Guggilapu , David G. Tilley , Christopher T. Chungbin , Walter Hsiao , Dinesh Krishna Kumar Jayabal , Daniel Cormier
IPC: B29C64/393 , B33Y30/00 , G06F18/20 , G06F18/2411 , B22F10/22 , B29C64/112 , G06N3/004 , B22F12/53
CPC classification number: B29C64/393 , B33Y30/00 , G06F18/2411 , G06F18/295 , B22F12/53 , G06N3/004
Abstract: A slicer in a material drop ejecting three-dimensional (3D) object printer identifies the positions and local densities for a plurality of infill lines within a perimeter to be formed within a layer of an object to be formed by the printer. The local density of each infill line is filtered and a control law is applied to the filtered local density to identify an error in the local density compared to a target density. This process is performed iteratively until the error is within a predetermined tolerance range about the target local density. The error is used to generate machine ready instructions to operate the 3D object printer to achieve the target density for the infill lines.
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公开(公告)号：US20220241866A1
公开(公告)日：2022-08-04
申请号：US17163368
申请日：2021-01-30
Applicant: Xerox Corporation
Inventor： Jack G. Elliot , Rachel L. Tanchak , Derek A. Bryl , Piotr Sokolowski , Erwin Ruiz , David A. Mantell , Brendan McNamara , Peter M. Gulvin , Christopher T. Chungbin
Abstract: A slicer in a material drop ejecting three-dimensional (3D) object printer generates machine ready instructions that operate components of a printer, such as actuators and an ejector having at least one nozzle, to form features of an object more precisely than previously known. The instructions generated by the slicer use positional data from an encoder to control the actuators to move the ejector and a platform on which the object is formed relative to one another to form edges of the feature.
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公开(公告)号：US20210178763A1
公开(公告)日：2021-06-17
申请号：US16712618
申请日：2019-12-12
Applicant: XEROX CORPORATION
Inventor： Christopher T. Chungbin , Scott J. Vader , Zachary S. Vader , Kareem N. Tawil , William R. Harris , David A. Mantell , Viktor Sukhotskiy
IPC: B41J2/14 , B33Y10/00 , B33Y30/00 , B33Y70/00 , B22D23/00 , B28B1/00 , B29C64/112 , B29C64/209
Abstract: A jetting assembly that can be used to print a high-temperature print material such as a metal or metal alloy, an aqueous ink, or another material, includes an actuator for heating a gas such as a non-volatile gas within a gas cavity. The actuator rapidly heats the gas within the gas cavity, which rapidly increases a volume of the gas, thereby applying a pressure to the print material within an expansion channel that is in fluid communication with the gas cavity. In turn, the print material within the expansion channel applies a pressure to the print material within a nozzle bore, which forces a drop of the print material from a nozzle. The jetting assembly further includes a supply inlet that supplies the print material to the expansion chamber and the nozzle bore, for example, from a reservoir.
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