公开(公告)号：US11412755B2

公开(公告)日：2022-08-16

申请号：US15954177

申请日：2018-04-16

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Andrew W. Hays ,  Zahra C. Langford

IPC: A23G3/34 ,  A23G3/54 ,  A23G1/54 ,  A23G1/52 ,  B33Y10/00 ,  A23G1/00 ,  A23G1/50 ,  B33Y80/00 ,  A23P20/25

Abstract: A method for printing a three-dimensional crystalline structure such as a chocolate layer wherein, after printing, the material has a desired crystal structure and a plurality of non-random cavities. An embodiment can include printing a liquid first layer of material with a printer onto a second layer of material having a crystal structure. Subsequently, the printed liquid first layer is processed to solidify the first layer. During the processing of the printed liquid first layer, the second layer functions as a crystal seed layer through physical contact with the printed liquid first layer and the second layer crystallizes with the crystal structure. In some embodiments, confections may be formed from high-quality chocolate, where the confection has a reduced caloric content with acceptable mouthfeel. In other embodiments, a confection may have a previously unrealized mouthfeel and taste.

公开(公告)号：US20220234111A1

公开(公告)日：2022-07-28

申请号：US17159975

申请日：2021-01-27

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： David A. Mantell ,  Christopher T. Chungbin ,  Daniel Cormier ,  David G. Tilley ,  Walter Hsiao ,  PriyaankaDevi Guggilapu ,  Michael F. Dapiran ,  Dinesh Krishna Kumar Jayabal

IPC: B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/22

Abstract: A three-dimensional (3D) metal object manufacturing apparatus is operated to form sloping surfaces having a slope angle of more than 45° from a line that is perpendicular to the structure on which the layer forming the slope surface is formed. The angle corresponds to a step-out distance from the perpendicular line and a maximum individual step-out distance determined from empirically derived data. Multiple passes of an ejection head of the apparatus can be performed within a layer to form a sloped edge and the mass of the sloped structure is distributed within the sloped edge so the edge is formed without defects.

公开(公告)号：US11383417B2

公开(公告)日：2022-07-12

申请号：US17007881

申请日：2020-08-31

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Peter J. Nystrom ,  Christopher G. Lynn ,  Jun Ma ,  Mark A. Cellura ,  Gary D. Redding

IPC: B29C48/80 ,  B29C48/00 ,  B29C48/29 ,  B29C48/36 ,  B29C64/106 ,  B29C48/92 ,  B29C64/295 ,  B29C64/209 ,  B33Y70/00 ,  B33Y30/00 ,  B29K101/12

Abstract: An additive manufacturing system includes a heater for converting a filament of extrusion material into thermoplastic material. The heater has a channel configured to change the cross-sectional shape of the filament to a cross-sectional shape that has a greater surface area than the surface area of the filament before the heater receives the filament. The channel of the heater can also be configured to drive the center portion of the filament toward the heated walls of the channel and to mix thermoplastic material in the channel while exposing the center portion of the filament to the heated wall of the channel.

公开(公告)号：US11338523B2

公开(公告)日：2022-05-24

申请号：US16898062

申请日：2020-06-10

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Christopher G. Lynn ,  Jason O'Neil ,  Priyaanka D. Guggilapu ,  Peter J. Nystrom

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/236 ,  B29C64/241 ,  B29C64/118 ,  B29C64/209

Abstract: An additive manufacturing system has a controller configured to modify numerical control programming instructions to form interlocking structures that improve object structural integrity in the Z-direction. The interlocking structures are produced by forming one layer with swaths that are separated by gaps and another layer that is formed over the gaps to fill the gaps and lay over the swaths forming the gaps.

公开(公告)号：US11235382B2

公开(公告)日：2022-02-01

申请号：US16666212

申请日：2019-10-28

Applicant: XEROX CORPORATION ,  Palo Alto Research Center Incorporated

Inventor： David A. Mantell ,  Daniel R. Cormier ,  Christopher T. Chungbin ,  Zachary S. Vader ,  Viktor Sukhotskiy ,  Scott J. Vader ,  David Tilley

IPC: B22D23/00 ,  B33Y10/00 ,  B29C64/112

Abstract: A method for printing a structure, the structure including a plurality of pillars. The method for printing can include ejecting only a first drop of a print material such as a liquid metal sequentially at each of a plurality of pillar locations, then ejecting only a second drop of the print material sequentially onto the first drop at each of the plurality of print locations. Additional drops can be ejected at two or more of the pillar locations to form the plurality of pillars. Ejecting only a first drop at each pillar location allows the first drop to cure (i.e., cool or dry) before ejecting the second drop. The printer continues printing while the drops cure, thus improving processing efficiency and increasing production throughput.

公开(公告)号：US11207813B2

公开(公告)日：2021-12-28

申请号：US16807756

申请日：2020-03-03

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Peter J. Nystrom

IPC: B29C48/05 ,  B29C48/345 ,  B29C64/118 ,  B29C64/209 ,  B29C64/336 ,  B29C64/20 ,  B29C64/386 ,  B29C64/106 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29K105/00

Abstract: An additive manufacturing system has a plurality of manifolds in an extruder. Each manifold is connected to at least one nozzle of the extruder so the at least one nozzle extrudes thermoplastic material through a corresponding aperture in a faceplate mounted to the extruder. A plurality of valves is configured between each manifold and each nozzle connected to the manifold so the nozzles connected to a manifold extrude thermoplastic material from the manifold selectively. The faceplate is also configured for rotation about an axis perpendicular to the faceplate so different orientations of the nozzles and the apertures of the faceplate can be obtained. The different manifolds of the extruder enable a plurality of thermoplastic materials having different properties to be extruded simultaneously so the materials can join to one another while the materials are at an elevated temperature.

公开(公告)号：US20210096537A1

公开(公告)日：2021-04-01

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: G05B19/4099 ,  B33Y50/00 ,  B22D23/00 ,  G05B19/19 ,  G06N20/00

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.

公开(公告)号：US20210046541A1

公开(公告)日：2021-02-18

申请号：US16991159

申请日：2020-08-12

Applicant: XEROX CORPORATION

Inventor： Viktor Sukhotskiy ,  David A. Mantell ,  Palghat S. Ramesh ,  Kareem Tawil ,  Alexander J. Fioravanti ,  Dinesh Krishna Kumar Jayabal

IPC: B22D23/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional (3D) printer includes an ejector and a heating element configured to heat a solid printing material in the ejector, thereby causing the solid printing material to change to a liquid printing material within the ejector. The 3D printer also includes a coil wrapped at least partially around the ejector. The 3D printer also includes a power source configured to supply one or more pulses of power to the coil, which cause one or more drops of the liquid printing material to flow out of the ejector through a nozzle of the ejector. The 3D printer also includes a gas-controlling device configured to control a gas in the 3D printer.

公开(公告)号：US10814553B2

公开(公告)日：2020-10-27

申请号：US16667155

申请日：2019-10-29

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Christopher G. Lynn ,  Mark A. Cellura ,  Peter J. Nystrom

IPC: B29C64/232 ,  B29C64/118 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/227 ,  B29C64/205

Abstract: A method for identifying an angular deviation in the orientation of a multi-nozzle extruder includes moving the multi-nozzle extruder in a first process direction to form a first extrusion material swath and moving the multi-nozzle extruder in a second process direction opposing the first process direction to form a second extrusion material swath. The method further includes identifying widths and heights of the swaths from scanned image data and identifying a component of angular deviation for the multi-nozzle extruder with reference to at least one of a difference between the first swath width and the second swath width and another difference between the first swath height and the second swath height.

公开(公告)号：US10814544B2

公开(公告)日：2020-10-27

申请号：US15334851

申请日：2016-10-26

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Peter J. Nystrom ,  Christopher G. Lynn ,  Jun Ma ,  Mark A. Cellura ,  Gary D. Redding

IPC: B29C48/80 ,  B29C48/00 ,  B29C48/29 ,  B29C48/36 ,  B29C64/106 ,  B29C48/92 ,  B29C64/295 ,  B29C64/209 ,  B33Y70/00 ,  B33Y30/00 ,  B29K101/12

Abstract: An apparatus includes a heater for converting a filament of extrusion material into thermoplastic material. The heater has a channel configured to change the cross-sectional shape of the filament to a cross-sectional shape that has a greater surface area than the surface area of the filament before the heater receives the filament. The channel of the heater can also be configured to drive the center portion of the filament toward the heated walls of the channel and to mix thermoplastic material in the channel while exposing the center portion of the filament to the heated wall of the channel.