Patents by Inventor Erwin Ruiz

Erwin Ruiz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11499873
    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.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: November 15, 2022
    Assignee: XEROX CORPORATION
    Inventors: Christopher Douglas Atwood, Erwin Ruiz, David M. Kerxhalli, Douglas K. Herrmann, Linn C. Hoover, Derek A. Bryl, Ali R. Dergham
  • Patent number: 11485089
    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.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 1, 2022
    Assignee: Xerox Corporation
    Inventors: Ali R. Dergham, Douglas K. Herrmann, Christopher D. Atwood, Erwin Ruiz, Derek A. Bryl, Linn C. Hoover
  • Patent number: 11478991
    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.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: October 25, 2022
    Assignee: XEROX CORPORATION
    Inventors: Christopher Douglas Atwood, Erwin Ruiz, David M. Kerxhalli, Douglas K. Herrmann, Linn C. Hoover, Derek A. Bryl, Ali R. Dergham
  • Patent number: 11483442
    Abstract: A method is disclosed. For example, the method executed by a processor of a multi-function device (MFD) includes monitoring operating parameters of a component in the MFD, calculating a life set point for the component based on the operating parameters, and changing a default life set point for the component stored in a memory of the MFD to the life set point that is calculated based on the operating parameters.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 25, 2022
    Assignee: Xerox Corporation
    Inventors: Rachel Lynn Tanchak, Erwin Ruiz, Carlos M. Terrero, Kareem Tawil, Linn C. Hoover
  • Publication number: 20220305818
    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 printhead to eject a print fluid through an opening of a 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 is to flow air through the carrier plate to the movable support surface via a port through the carrier plate on an inboard side the carrier plate and to control a flow rate of the air flowed through the port based on a size of a print medium transported by the media transport device.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 29, 2022
    Applicant: XEROX CORPORATION
    Inventors: Linn C. HOOVER, Erwin RUIZ, Rachel Lynn TANCHAK, Kareem TAWIL, Carlos M. TERRERO
  • Publication number: 20220305815
    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 comprises a movable support surface to transport a print medium along a process direction through the deposition region, the media transport device holding the print medium against the movable support surface by vacuum suction. The air flow control system is arranged to selectively flow air through the opening of the carrier plate between the carrier plate and the printhead based on a location of a print medium transported by the media transport device relative to the printhead.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 29, 2022
    Applicant: XEROX CORPORATION
    Inventors: Douglas K. HERRMANN, Linn C. HOOVER, Patrick Jun HOWE, Joseph C. SHEFLIN, Robert Jian ZHANG, John Patrick BAKER, Brian M. BALTHASAR, Glenn BATCHELOR, Anthony Salvatore CONDELLO, Ali R. DERGHAM, Timothy P. FOLEY, Richard A. KALB, Peter John KNAUSDORF, Jason M. LeFEVRE, Jack T. LESTRANGE, Chu-Heng LIU, Paul J. McCONVILLE, Seemit PRAHARAJ, Palghat S. RAMESH, Erwin RUIZ, Emmett James SPENCE, Rachel Lynn TANCHAK, Kareem TAWIL, Carlos M. TERRERO, Megan ZIELENSKI
  • Patent number: 11453162
    Abstract: A system treats uneven surfaces of additive manufactured objects to improve the transparency and glossiness of the surfaces. The system operates an actuator to dip the additive manufactured object into a bath of fluid material that is the same as the material used to form the uneven surface to smooth the surface of the object and operates a sprayer to apply another fluid material to a surface of the object that is identified as being rougher based on the object's geometric data. A heater is provided to dry non-UV curable material applied to the object and a source of UV radiation is provided to cure UV curable material applied to the object.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: September 27, 2022
    Assignee: Xerox Corporation
    Inventors: Ron E. Dufort, Linn C. Hoover, Erwin Ruiz, Mandakini Kanungo
  • Patent number: 11407605
    Abstract: Printing apparatuses include (among other components) a photoreceptor (that is adapted to contact and transfer marking material to a printing side of sheets of media), a transport belt adjacent the photoreceptor, a baffle, and an air outlet. The sheets of media are moved by the photoreceptor across a gap to the transport belt in a “processing direction.” The baffle is adjacent the back side of the sheets of media (the side that is opposite to the printing side of the sheets of media). The air outlet is also positioned adjacent the back side of the sheets of media, and the air outlet is adapted to direct a stream of air along the baffle and between the baffle and the back side of the sheets of media to lift the sheets of media off the photoreceptor without damaging the sheets of media or disturbing the unfused marking material thereon.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: August 9, 2022
    Assignee: Xerox Corporation
    Inventors: Erwin Ruiz, Rachel L. Tanchak, Roberto A. Irizarry, Carlos M. Terrero, Glenn D. Batchelor
  • Publication number: 20220241865
    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.
    Type: Application
    Filed: January 30, 2021
    Publication date: August 4, 2022
    Inventors: Jack G. Elliot, Rachel L. Tanchak, Derek A. Bryl, Piotr Sokolowski, Erwin Ruiz, David A. Mantell, Brendan McNamara, Peter M. Gulvin, Christopher T. Chungbin
  • Publication number: 20220241866
    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.
    Type: Application
    Filed: January 30, 2021
    Publication date: August 4, 2022
    Inventors: Jack G. Elliot, Rachel L. Tanchak, Derek A. Bryl, Piotr Sokolowski, Erwin Ruiz, David A. Mantell, Brendan McNamara, Peter M. Gulvin, Christopher T. Chungbin
  • Publication number: 20220242048
    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.
    Type: Application
    Filed: January 30, 2021
    Publication date: August 4, 2022
    Inventors: 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
  • Patent number: 11383952
    Abstract: A sheet stacking apparatus includes a frame, a round member directly or indirectly connected to the frame, and an arm directly or indirectly connected to the frame. The arm is rotatable to rotate between a first position and a second position. The arm is positioned to bias sheets toward the round member when in the first position, and the arm is positioned to bias the sheets away from the round member when in the second position.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: July 12, 2022
    Assignee: Xerox Corporation
    Inventors: Erwin Ruiz, Bruce A. Thompson, Derek A. Bryl, Arthur H. Kahn, Paul F. Brown, II
  • Publication number: 20220205845
    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.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Applicant: XEROX CORPORATION
    Inventors: Christopher Douglas Atwood, Erwin Ruiz, David M. Kerxhalli, Douglas K. Herrmann, Linn C. Hoover, Derek A. Bryl, Ali R. Dergham
  • Publication number: 20220201131
    Abstract: A method is disclosed. For example, the method executed by a processor of a multi-function device (MFD) includes monitoring operating parameters of a component in the MFD, calculating a life set point for the component based on the operating parameters, and changing a default life set point for the component stored in a memory of the MFD to the life set point that is calculated based on the operating parameters.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 23, 2022
    Inventors: Rachel Lynn Tanchak, Erwin Ruiz, Carlos M. Terrero, Kareem Tawil, Linn C. Hoover
  • Patent number: 11358215
    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.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: June 14, 2022
    Assignee: XEROX CORPORATION
    Inventors: Christopher D. Atwood, Erwin Ruiz, Douglas K. Herrmann, Ali R. Dergham, Derek A. Bryl
  • Patent number: 11318666
    Abstract: A system for producing three-dimensional objects forms fluid paths within the support structure to facilitate the removal of the support structure following manufacture of the object. The system includes a first ejector configured to eject a first material towards a platen to form an object, a second ejector configured to eject a second material towards the platen to form support for portions of the object, at least one portion of the support having a body with at least one fluid path that connects at least one opening in the body to at least one other opening in the body, and a fluid source that connects to the at least one fluid path of the support to enable fluid to flow through the at least one fluid path to remove at least an inner portion of the support from the object.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: David A. Mantell, Andrew W. Hays, Linn C. Hoover, Ron E. Dufort, Erwin Ruiz, Patrick J. Howe
  • Patent number: 11307099
    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.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: April 19, 2022
    Assignee: XEROX CORPORATION
    Inventors: Christopher Douglas Atwood, Erwin Ruiz, David M. Kerxhalli, Douglas K. Herrmann, Linn C. Hoover, Derek A. Bryl, Ali R. Dergham
  • Patent number: 11293873
    Abstract: The present disclosure relates to using color calibration to improve and increase the accuracy of interpreting color-sensitive results from test strips made of substrates like paper. This is accomplished via a diagnostic test unit including a substrate, at least one region on the substrate, a reagent placed within the region to react, and a series of color legends on the substrate. Different reagent samples may be placed on the separate regions of a substrate for testing. An imaging device is used to capture the reaction results. More precise readings can be obtained by comparing the reaction results to the color legends to determine the measured property of the analyte.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: April 5, 2022
    Assignee: XEROX CORPORATION
    Inventors: Joseph M. Ferrara, Jr., Erwin Ruiz, Martin L. Frachioni
  • Patent number: 11267105
    Abstract: A generic holder includes a generic holder plate and a 3-D insert plate. The 3-D insert plate contains locating features mirrored to the backside of the part to be printed and vacuum grippers to secure the part in the insert plate. The insert plate is secured in the generic holder plate that includes vacuum couplings. The part is located on the insert plate and vacuum is applied to the generic holder plate and insert plate to hold the part for printing.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: March 8, 2022
    Assignee: Xerox Corporation
    Inventors: Linn C Hoover, Jeffrey J Bradway, Erwin Ruiz, Paul M Fromm
  • Patent number: 11260449
    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.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: March 1, 2022
    Assignee: XEROX CORPORATION
    Inventors: Douglas K. Herrmann, Erwin Ruiz, Ali R. Dergham, Christopher D. Atwood, Daniel R. Knopp, Derek A. Bryl, Linn C. Hoover