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公开(公告)号：US20240075530A1
公开(公告)日：2024-03-07
申请号：US17930233
申请日：2022-09-07
Applicant: XEROX CORPORATION
Inventor： Kareem Tawil , Christopher T. Chungbin
Abstract: A valve configured to control flow of a material therethrough includes a body having a bore formed axially therethrough. The valve also includes a cooler positioned at least partially around or within the body. The cooler is configured to cool the material to below a melting point of the material to form a solid plug within the body to prevent the material from flowing therethrough. The valve also includes a heater positioned at least partially around or within the body. The heater is configured to re-heat the material to above the melting point of the material to allow the material to flow therethrough.
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公开(公告)号：US11701712B2
公开(公告)日：2023-07-18
申请号：US17163363
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
IPC: B33Y50/02 , B33Y30/00 , B29C64/393 , B33Y50/00 , B22F10/85 , B33Y10/00 , B22F10/22 , B22F12/53 , G06F18/2413 , G05B19/19 , B29C64/386
CPC classification number: B22F10/85 , B22F10/22 , B22F12/53 , B29C64/386 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/00 , B33Y50/02 , G05B19/19 , G06F18/2413
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 control the actuators to move the ejector and a platform on which the object is formed relative to one another at a constant velocity to form edges of the feature.
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公开(公告)号：US11565475B2
公开(公告)日：2023-01-31
申请号：US16845312
申请日：2020-04-10
Applicant: Xerox Corporation
Inventor： David A. Mantell , Christopher T. Chungbin , Chu-Heng Liu , Scott J. Vader , Zachary S. Vader , Viktor Sukhotskiy , Denis Cormier , Kareem Tawil
IPC: B29C64/393 , B29C64/112 , B29C64/188 , B33Y50/02 , B33Y10/00
Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for errors that occur during object formation. In the method, thermal image data and dimensional image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object. Thermal conditions are identified from these data and compared to predetermined ranges corresponding to the identified thermal conditions to identify one or more errors. For identified errors outside a corresponding predetermined difference range, the method performs an error compensation technique. The error compensation includes modification of a surface data model, modification of machine-ready instructions, or operation of a subtractive device.
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公开(公告)号：US20200324486A1
公开(公告)日：2020-10-15
申请号：US16845312
申请日：2020-04-10
Applicant: Xerox Corporation
Inventor： David A. Mantell , Christopher T. Chungbin , Chu-Heng Liu , Scott J. Vader , Zachary S. Vader , Viktor Sukhotskiy , Denis Cormier , Kareem Tawil
IPC: B29C64/393 , B29C64/112 , B29C64/188
Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for errors that occur during object formation. In the method, thermal image data and dimensional image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object. Thermal conditions are identified from these data and compared to predetermined ranges corresponding to the identified thermal conditions to identify one or more errors. For identified errors outside a corresponding predetermined difference range, the method performs an error compensation technique. The error compensation includes modification of a surface data model, modification of machine-ready instructions, or operation of a subtractive device.
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公开(公告)号：US20200324341A1
公开(公告)日：2020-10-15
申请号：US16844524
申请日：2020-04-09
Applicant: XEROX CORPORATION
Inventor： Chu-Heng Liu , Scott James Vader , PAUL J. MCCONVILLE , DAVID A. MANTELL , Christopher T. Chungbin , Peter M Gulvin
IPC: B22F3/105
Abstract: The nozzles of a MHD liquid metal ejector/printhead can be clogged by contaminants in the liquid metal. Typically, these contaminants are in the form of small particles of aggregates of particles, such as metal oxides, that are insoluble in the liquid metal. Possible cleaning methods include mechanically removing the clogging material, such as by using a physical device to dislodge the clogging material and remove it; chemically removing the clogging material, such as by using selected chemicals/flux to chemically react with the clogging material; using ultrasound to break/remove the clogging material; and providing reversed and/or oscillating flow of material through the nozzle.
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Patent Agency Ranking
6.发明授权公开(公告)号：US12023871B2
公开(公告)日：2024-07-02
申请号：US18299636
申请日：2023-04-12
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 , B22F10/85 , B22F12/53 , G06N3/004 , G06N20/00
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：US11886759B2
公开(公告)日：2024-01-30
申请号：US16589969
申请日：2019-10-01
Applicant: Xerox Corporation , Palo Alto Research Center Incorporated
Inventor： David A. Mantell , Christopher T. Chungbin , Daniel R. Cormier , Scott J. Vader , Zachary S. Vader , Viktor Sukhotskiy , Raja Bala , Walter Hsiao
IPC: G06F3/12 , B33Y50/00 , G06N20/00 , B22D23/00 , G05B19/19 , G05B19/4099 , B22F10/22 , B22F12/90 , B22F10/31 , B22F10/85 , B33Y30/00 , G06F119/18 , G06F30/00 , B22F12/00 , B22F12/33 , B22F10/32
CPC classification number: G06F3/1208 , B22D23/003 , B22F10/22 , B22F10/31 , B22F10/85 , B22F12/90 , B33Y50/00 , G05B19/19 , G05B19/4099 , G06N20/00 , B22F10/32 , B22F12/222 , B22F12/224 , B22F12/33 , B33Y30/00 , G05B2219/35134 , G05B2219/49007 , G06F30/00 , G06F2119/18
Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for displacement errors that occur during object formation. In the method, image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object and compared to original 3D object design data of the object to identify one or more displacement errors. For the displacement errors outside a predetermined difference range, the method modifies machine-ready instructions for forming metal object layers not yet formed to compensate for the identified displacement errors and operates the 3D metal object manufacturing system using the modified machine-ready instructions.
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公开(公告)号：US11883881B2
公开(公告)日：2024-01-30
申请号：US17157448
申请日：2021-01-25
Applicant: Xerox Corporation , Palo Alto Research Center Incorporated
Inventor： Stuart A. Schweid , David A. Mantell , Christopher T. Chungbin , David G. Tilley , Walter Hsiao , PriyaankaDevi Guggilapu , Daniel Cormier , Dinesh Krishna Kumar Jayabal
CPC classification number: B22F10/85 , B22D23/003 , B22F10/22 , B22F12/53 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: A slicer in a material drop ejecting three-dimensional (3D) object printer determines the number of material drops to eject to form a perimeter in an object layer and distributes a quantization error over the layers forming the perimeter. The slicer also identifies the location for the first material drop ejected to form the perimeter using a blue noise generator.
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公开(公告)号：US20230278103A1
公开(公告)日：2023-09-07
申请号：US17652988
申请日：2022-03-01
Applicant: Xerox Corporation , Palo Alto Research Center Incorporated
Inventor： Christopher T. Chungbin , PriyaankaDevi Guggilapu , Daniel R. Cormier , David G. Tilley , David A. Mantell , Michael F. Dapiran
Abstract: A metal object manufacturing apparatus is configured to eject melted metal drops to form a continuous metal line over a line of spatially separated pillars in a single pass. The ejection frequency for forming the continuous metal line is different than the frequency used to form the pillars. In one embodiment, the ejection frequency for forming the pillars is about 100 Hz and the frequency used to form the continuous metal line over the line of spatially separated pillars is about 300 Hz with a drop spacing of about 0.2 mm. Continuous metal lines are formed to extend the continuous metal lines over the pillars laterally to fill the gaps between the continuous metal lines over the pillars. These continuous metal lines that fill the gaps are formed while operating the ejection head at the 300 Hz frequency with a drop spacing of 0.28 mm.
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公开(公告)号：US20220241865A1
公开(公告)日：2022-08-04
申请号：US17163363
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 control the actuators to move the ejector and a platform on which the object is formed relative to one another at a constant velocity to form edges of the feature.
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