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1.发明公开公开(公告)号：US20230158573A1
公开(公告)日：2023-05-25
申请号：US17455785
申请日：2021-11-19
Applicant: Xerox Corporation
Inventor： Glenn E. Batchelor , Ali R. Dergham , Timothy P. Foley
IPC: B22F12/17
Abstract: A three-dimensional (3D) metal object manufacturing apparatus has a build platform heater that is configured with a plurality of temperature sensors and heating elements distributed throughout the heater. The signals generated by the temperature sensors are monitored by a controller and when one of the signals is outside of a temperature range around a temperature setpoint for the heater, the controller adjusts a PWM signal operating a switch that connects the heating element corresponding to the temperature sensor that generated the signal outside of the temperature range. The temperature sensors and heating elements are distributed in a plurality of cells that border one another in a contiguous pattern.
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公开(公告)号：US11260449B2
公开(公告)日：2022-03-01
申请号：US16808285
申请日：2020-03-03
Applicant: XEROX CORPORATION
Inventor： Douglas K. Herrmann , Erwin Ruiz , Ali R. Dergham , Christopher D. Atwood , Daniel R. Knopp , Derek A. Bryl , Linn C. Hoover
Abstract: A three-dimensional printing system includes a build platform comprising a build surface. The printing system also includes an enclosure system having a side portion extending entirely around the build surface, a top plate portion that abuts the side portion, and a bottom portion. The side portion, the top plate portion and the bottom portion form an enclosed space surrounding the build surface. The top plate portion is moveable so as to adjust a volume of the enclosed space. A 3D printer printhead is disposed adjacent to the enclosure system for depositing a print material onto the build surface. The printing system also includes a heating system for heating the enclosed space.
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公开(公告)号：US20210283853A1
公开(公告)日：2021-09-16
申请号：US16816853
申请日：2020-03-12
Applicant: Xerox Corporation
Inventor： Ali R. Dergham , Douglas K. Herrmann , Christopher D. Atwood , Erwin Ruiz , Derek A. Bryl , Linn C. Hoover
IPC: B29C64/393 , B29C64/112 , B29C64/295 , B29C64/232 , B29C64/245 , B29C64/241
Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to maintain a temperature of an uppermost layer of a 3D metal object being formed within a temperature range conducive for bonding between the uppermost layer and a next layer to be formed. A controller of the system compares a temperature of the uppermost layer with at least a low end temperature of the temperature range and operates an electrical resistance switching network using 3D model data to provide electrical power selectively to heating elements in a modular heater to heat the 3D metal object being formed when the temperature indicated by the signal from the sensor is less than the predetermined temperature.
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公开(公告)号：US20210276082A1
公开(公告)日：2021-09-09
申请号：US16808285
申请日：2020-03-03
Applicant: XEROX CORPORATION
Inventor： Douglas K. Herrmann , Erwin Ruiz , Ali R. Dergham , Christopher D. Atwood , Daniel R. Knopp , Derek A. Bryl , Linn C. Hoover
Abstract: A three-dimensional printing system includes a build platform comprising a build surface. The printing system also includes an enclosure system having a side portion extending entirely around the build surface, a top plate portion that abuts the side portion, and a bottom portion. The side portion, the top plate portion and the bottom portion form an enclosed space surrounding the build surface. The top plate portion is moveable so as to adjust a volume of the enclosed space. A 3D printer printhead is disposed adjacent to the enclosure system for depositing a print material onto the build surface. The printing system also includes a heating system for heating the enclosed space.
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公开(公告)号：US10005632B1
公开(公告)日：2018-06-26
申请号：US15669670
申请日：2017-08-04
Applicant: Xerox Corporation
Inventor： Erwin Ruiz , Glenn David Batchelor , Ali R. Dergham , David J. Breed , Paul F. Brown, II , Mark A. Adiletta
CPC classification number: B65H15/00 , B65H29/245 , B65H29/246 , B65H29/247 , B65H31/10 , B65H31/36 , B65H43/00 , B65H2301/33214 , B65H2301/33224 , B65H2301/4461 , B65H2405/54 , B65H2406/122 , B65H2406/364 , B65H2511/11 , B65H2515/112 , B65H2515/212 , B65H2701/1311 , B65H2801/06 , B65H2220/01 , B65H2220/02
Abstract: An apparatus is disclosed. For example, the apparatus includes a paper feed to feed print media a single sheet at a time, a plurality of rotating discs, wherein each one of the plurality of rotating discs comprises an elastomer ring to secure a leading edge of the single sheet against a registration wall and initiate a flipping process, an air duct to force an air flow towards the print media to levitate a trailing edge of the single sheet during completion of the flipping process, and a movable platform to hold a stack of the print media.
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Patent Agency Ranking
公开(公告)号：US11850842B2
公开(公告)日：2023-12-26
申请号：US17216261
申请日：2021-03-29
Applicant: XEROX CORPORATION
Inventor： Patrick Jun Howe , John Patrick Baker , Brian M. Balthasar , Glenn Batchelor , Anthony Salvatore Condello , Ali R. Dergham , Timothy P. Foley , Douglas K. Herrmann , Richard A. Kalb , Peter John Knausdorf , Jason M. LeFevre , Jack T. Lestrange , Chu-Heng Liu , Paul J. McConville , Seemit Praharaj , Palghat S. Ramesh , Joseph C. Sheflin , Emmett James Spence , Robert Jian Zhang , Megan Zielenski
CPC classification number: B41J11/0085 , B41J2/01 , B41J11/007
Abstract: A printing system comprises a print fluid deposition assembly, a media transport device, and an air flow control system. The print fluid deposition assembly comprises a carrier plate and a printhead arranged to eject a print fluid through an opening of the carrier plate to a deposition region. The media transport device holds a print medium against the movable support surface by vacuum suction and transports the print medium through the deposition region. The air flow control system comprises an air supply unit comprising air flow guide structure extending into the opening of the carrier plate between the carrier plate and the printhead to flow air through the opening. The air flow control system controls the air supply unit to selectively flow the air based on a location of a print medium relative to the printhead.
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公开(公告)号：US20210276081A1
公开(公告)日：2021-09-09
申请号：US16808266
申请日：2020-03-03
Applicant: XEROX CORPORATION
Inventor： Christopher D. Atwood , Erwin Ruiz , Douglas K. Herrmann , Ali R. Dergham , Derek A. Bryl
Abstract: A three-dimensional printing system, the system comprising a build platform and a printhead for depositing a conductive print material at deposition contact points of a build surface on the build platform. A heating system comprises at least one induction coil for preheating the deposition contact points of the build surface.
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公开(公告)号：US10069996B2
公开(公告)日：2018-09-04
申请号：US15266041
申请日：2016-09-15
Applicant: Xerox Corporation
Inventor： Mark A. Adiletta , Christopher D. Atwood , Ali R. Dergham , Roger G. Leighton , Francisco Zirilli
Abstract: In an example embodiment, an image processing system can be implemented, which includes a printing surface and a prism that splits light from an input light source into two parallel light beams indicative of a signal image. Two or more DMDs (Digital Micromirror Devices) can be utilized, wherein the two parallel light beams are directed to the DMDs for image processing, such that as the two parallel light beams are reflected out onto the printing surface, the two parallel light beams are recombined into a single image, thereby enabling heat dissipation while “stitching” said output of said at least two digital micromirror devices to a usable video path.
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公开(公告)号：US09971147B2
公开(公告)日：2018-05-15
申请号：US15275633
申请日：2016-09-26
Applicant: Xerox Corporation
Inventor： Christopher D. Atwood , Mark A. Adiletta , Ali R. Dergham , Roger G. Leighton , Francisco Zirilli
CPC classification number: G02B26/0833 , B81B7/0019 , B81B7/0067 , B81B2201/042 , B81C1/00333 , G03F7/70891
Abstract: A DMD cooling apparatus and method includes a DMD chip configured on a substrate, and a heatsink located within and integrated into the substrate upon which the DMD is configured. A plurality of micro-channels can be formed on a backside of the substrate. The micro-channels are fabricated via microlithography in association with a fabrication of the DMD chip such that the heatsink integrated into the silicon substrate allows for direct heat removal from the substrate.
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公开(公告)号：US20180088319A1
公开(公告)日：2018-03-29
申请号：US15275633
申请日：2016-09-26
Applicant: Xerox Corporation
Inventor： Christopher D. Atwood , Mark A. Adiletta , Ali R. Dergham , Roger G. Leighton , Francisco Zirilli
CPC classification number: G02B26/0833 , B81B7/0019 , B81B7/0067 , B81B2201/042 , B81C1/00333 , G03F7/70891
Abstract: A DMD cooling apparatus and method includes a DMD chip configured on a substrate, and a heatsink located within and integrated into the substrate upon which the DMD is configured. A plurality of micro-channels can be formed on a backside of the substrate. The micro-channels are fabricated via microlithography in association with a fabrication of the DMD chip such that the heatsink integrated into the silicon substrate allows for direct heat removal from the substrate.
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