Patents by Inventor Douglas E. Proctor

Douglas E. Proctor 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).

  • Publication number: 20210162493
    Abstract: A method of three-dimensional printing comprises heating a first portion of a build surface on a platform by impinging a laser beam on the build surface so as to provide a preheated drop contact point having a first deposition temperature. A first drop of a liquid print material is ejected from a printhead of a 3D printer so as to deposit the first drop on the preheated drop contact point at the first deposition temperature.
    Type: Application
    Filed: December 2, 2019
    Publication date: June 3, 2021
    Applicant: XEROX CORPORATION
    Inventors: Douglas K. Herrmann, Erwin Ruiz, Thomas R. Race, Robert P. Herloski, Douglas E. Proctor, Thomas F. Wade, John C. Juhasz
  • Patent number: 10493701
    Abstract: A printer that forms three-dimensional objects has two printheads, one of which is positioned to eject material drops in a direction that is parallel to a plane of a planar member on which an object is formed by the two printheads.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: December 3, 2019
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., Timothy J. Clark, Douglas E. Proctor
  • Patent number: 10391757
    Abstract: A printer is configured with positioning members that hold components at predetermined positions to enable a controller operating at least one printhead in a three-dimensional object printer to form structure about the components. The positioning members can then be removed from the printed three-dimensional object to enable continued formation of the three-dimensional object.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: August 27, 2019
    Assignee: Xerox Corporation
    Inventors: Douglas E. Proctor, Timothy J. Clark, Joseph M. Ferrara, Jr.
  • Patent number: 10179436
    Abstract: A three-dimensional object printer generates image data of an object being formed in the printer with an optical sensor and identifies the heights of object features above a substrate on which the object is being formed. A controller operates one or more actuators to move the optical sensor at a plurality of distances above the object to generate image data of the object at a plurality of heights above the object. The controller identifies the distances of the features of the object with reference to the image data generated by the optical sensor and the focal length of the optical sensor.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: January 15, 2019
    Assignee: Xerox Corporation
    Inventors: David A. Mantell, David C. Craig, Jonathan B. Hunter, Douglas E. Proctor
  • Publication number: 20180244035
    Abstract: A three-dimensional object printer generates image data of an object being formed in the printer with an optical sensor and identifies the heights of object features above a substrate on which the object is being formed. A controller operates one or more actuators to move the optical sensor at a plurality of distances above the object to generate image data of the object at a plurality of heights above the object. The controller identifies the distances of the features of the object with reference to the image data generated by the optical sensor and the focal length of the optical sensor.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Inventors: David A. Mantell, David C. Craig, Jonathan B. Hunter, Douglas E. Proctor
  • Patent number: 10060793
    Abstract: A method of spatially and spectrally calibrating a spectrophotometer including: a) emitting a white light illumination output from a full width illumination source; b) illuminating a test patch with the white light illumination output; c) reflecting a portion of the white light illumination output from the test patch to form a white light reflected illumination output; d) receiving the white light reflected illumination output at first, second and third rows of photosensitive elements to form a first calibration data set; e) emitting a cyan light illumination output from the full width illumination source; f) illuminating the test patch with the cyan light illumination output; g) reflecting a portion of the cyan light illumination output from the test patch to form a cyan light reflected illumination output; and, h) receiving the cyan light reflected illumination output at the second and third rows of photosensitive elements to form a second calibration data set.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: August 28, 2018
    Assignee: Xerox Corporation
    Inventors: David C. Craig, Robert P. Herloski, David A. Mantell, Douglas E. Proctor, Jonathan B. Hunter, Stuart Schweid
  • Patent number: 10005229
    Abstract: A three-dimensional object printer generates image data of an object being formed in the printer with an optical sensor and identifies the heights of object features above a substrate on which the object is being formed. A controller operates one or more actuators to move the optical sensor at a plurality of distances above the object to generate image data of the object at a plurality of heights above the object. The controller identifies the distances of the features of the object with reference to the image data generated by the optical sensor and the focal length of the optical sensor.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: June 26, 2018
    Assignee: Xerox Corporation
    Inventors: David A. Mantell, David C. Craig, Jonathan B. Hunter, Douglas E. Proctor
  • Publication number: 20180086006
    Abstract: A printer is configured with positioning members that hold components at predetermined positions to enable a controller operating at least one printhead in a three-dimensional object printer to form structure about the components. The positioning members can then be removed from the printed three-dimensional object to enable continued formation of the three-dimensional object.
    Type: Application
    Filed: September 29, 2016
    Publication date: March 29, 2018
    Inventors: Douglas E. Proctor, Timothy J. Clark, Joseph M. Ferrara, JR.
  • Publication number: 20170205285
    Abstract: A method of spatially and spectrally calibrating a spectrophotometer including: a) emitting a white light illumination output from a full width illumination source; b) illuminating a test patch with the white light illumination output; c) reflecting a portion of the white light illumination output from the test patch to form a white light reflected illumination output; d) receiving the white light reflected illumination output at first, second and third rows of photosensitive elements to form a first calibration data set; e) emitting a cyan light illumination output from the full width illumination source; f) illuminating the test patch with the cyan light illumination output; g) reflecting a portion of the cyan light illumination output from the test patch to form a cyan light reflected illumination output; and, h) receiving the cyan light reflected illumination output at the second and third rows of photosensitive elements to form a second calibration data set.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 20, 2017
    Inventors: David C. Craig, Robert P. Herloski, David A. Mantell, Douglas E. Proctor, Jonathan B. Hunter, Stuart Schweid
  • Publication number: 20170100927
    Abstract: Embossing methods and systems include a substrate (e.g., a sheet of paper or other material) delivered through a rendering device (e.g., a printer). An array of time-delayed pins can be driven into the substrate as the substrate travels through an in-line path provided by the rendering device to produce a latent embossed image composed of a combination of shapes depressed in the substrate. An ATA (Acoustic Transfer Assist) system can transfer an image to the substrate. The substrate with the latent embossed image is then transferred to the ATA system and the substrate is rendered with an embossed image based on the latent embossed image.
    Type: Application
    Filed: October 12, 2015
    Publication date: April 13, 2017
    Inventors: Timothy J. Clark, Eliud Robles Flores, Douglas E. Proctor, Timothy P. Foley
  • Publication number: 20170095974
    Abstract: A printer that forms three-dimensional objects has two printheads, one of which is positioned to eject material drops in a direction that is parallel to a plane of a planar member on which an object is formed by the two printheads.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 6, 2017
    Inventors: Joseph M. Ferrara, JR., Timothy J. Clark, Douglas E. Proctor
  • Publication number: 20170059302
    Abstract: A three-dimensional object printer generates image data of an object being formed in the printer with an optical sensor and identifies the heights of object features above a substrate on which the object is being formed. A controller operates one or more actuators to move the optical sensor at a plurality of distances above the object to generate image data of the object at a plurality of heights above the object. The controller identifies the distances of the features of the object with reference to the image data generated by the optical sensor and the focal length of the optical sensor.
    Type: Application
    Filed: August 31, 2015
    Publication date: March 2, 2017
    Inventors: David A. Mantell, David C. Craig, Jonathan B. Hunter, Douglas E. Proctor
  • Patent number: 8610901
    Abstract: A method for determining a flatness characteristic for a facet of a polygon assembly includes a) rotating a polygon assembly with facets at a desired speed, b) directing a light beam from a light source toward the polygon assembly so light is reflected by consecutive facets during revolutions of the polygon assembly, reflected light passing through a focusing lens that directs a spot light toward a target with spaced-apart bars arranged in a grating pattern that block a portion of the reflected light and allows another portion to pass through another focusing lens that directs another spot light toward a light sensor, the light sensor detecting intensity of the spot light, and c) measuring the intensity over time during revolutions of the polygon assembly to obtain measurements for each facet. An associated test setup includes a fixture, motor controller, light source, light sensor, two focusing lens, target, and system controller.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: December 17, 2013
    Assignee: Xerox Corporation
    Inventors: Douglas E. Proctor, Robert Paul Herloski
  • Publication number: 20130050699
    Abstract: A method for determining a flatness characteristic for a facet of a polygon assembly includes a) rotating a polygon assembly with facets at a desired speed, b) directing a light beam from a light source toward the polygon assembly so light is reflected by consecutive facets during revolutions of the polygon assembly, reflected light passing through a focusing lens that directs a spot light toward a target with spaced-apart bars arranged in a grating pattern that block a portion of the reflected light and allows another portion to pass through another focusing lens that directs another spot light toward a light sensor, the light sensor detecting intensity of the spot light, and c) measuring the intensity over time during revolutions of the polygon assembly to obtain measurements for each facet. An associated test setup includes a fixture, motor controller, light source, light sensor, two focusing lens, target, and system controller.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Applicant: XEROX CORPORATION
    Inventors: Douglas E. Proctor, Robert Paul Herloski
  • Patent number: 7760434
    Abstract: A scanning apparatus includes an illuminator for illuminating a portion of a document to be scanned. The illuminator includes an array of discrete light sources and an optical element. The optical element includes a light-transmissive material and defines a focusing portion and an angular modification portion. The angular modification portion tends to reduce specular flare by modifying the angular distribution of light from the light sources which are within the acceptance angle of a lens arrangement which focuses light from the document onto a sensor.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: July 20, 2010
    Assignee: Xerox Corporation
    Inventors: Michael John Wilsher, Robert P. Herloski, Douglas E. Proctor, John C. Juhasz, Eugene A. Rogalski, Jr.
  • Patent number: 7755811
    Abstract: A document illuminator includes a light-transmissive element having an embedded source of illumination fitted in a cavity formed therein. The light-transmissive element preferably has one or more optical notches and preferably is encased in an opaque surround to promote total internal reflection of the light rays emanating from the LED. The one or more optical notches may include a dual-V notch or an elliptical notch. The reflected light rays are collected at an aperture which in turn transmit light at high power and highly uniform illumination profile to illuminate a document.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: July 13, 2010
    Assignee: Xerox Corporation
    Inventors: Robert P. Herloski, Douglas E. Proctor
  • Patent number: 7746520
    Abstract: A document illuminator comprising a light-transmissive element having an embedded side emitting LED fitted in a cavity formed therein. The light-transmissive element is formed with one or more optical notches and is totally encased in a white surround to yield total internal reflection of the light rays emanating from the LED. The reflected light rays are collected at an aperture which in turn transmits high power and highly uniform illumination profile to illuminate a document.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: June 29, 2010
    Assignee: Xerox Corporation
    Inventors: Robert Herloski, John C. Juhasz, Douglas E. Proctor, Charles J. Urso, Jr.
  • Patent number: 7715063
    Abstract: A light-transmissive constant velocity transport platen. A light source is an integral part of the light-transmissive platen forming a light guide illuminator. The constant velocity transport integrated illuminator uses total internal reflection within the light-transmissive platen as well as frustrated total internal reflection at extraction surfaces to direct light out from an aperture to a document translated by a constant velocity transport system. For point light source, the system uses a deflector to avoid hot spots in the illumination profile. The deflector is no longer needed when line source is used in the constant velocity transport integrated illuminator.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: May 11, 2010
    Assignee: Xerox Corporation
    Inventor: Douglas E. Proctor
  • Patent number: 7706030
    Abstract: An apparatus for illuminating a document includes an optical element formed of a light-transmissive material of a predetermined refractory index that defines a curved entry surface and an exit surface opposite the entry surface in which light enters the optical element via the entry surface and light exits the optical element via exit surface. A first substantially parabolic surface is defined between a first edge of the entry surface and first edge of the exit surface and a second substantially parabolic surface is defined between a second edge of the entry surface and a second edge of the exit surface such that the first and second substantially parabolic surface are spaced apart more at the exit surface than at the entry surface.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: April 27, 2010
    Assignee: Xerox Corporation
    Inventors: Robert P. Herloski, Douglas E. Proctor, Jagdish C. Tandon, Pravin N. Kothari, Eric Dudley
  • Patent number: 7586082
    Abstract: An apparatus for recording an image on a sheet comprises a linear array of light sources and an optical element for transmitting light emitted from the light sources. The optical element comprises a light-transmissive member, having an entry surface for disposal near the light sources. The entry surface defines at least one set of prisms. The optical element can further define a DCPC (dielectric compound parabolic concentrator) in cross-section. Collection optics, such as a SELFOCĀ® lens, receives light reflected from the sheet. Each prism of the optical element defines an angle whereby light exiting the optical element is outside the acceptance angle of the collection optics.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: September 8, 2009
    Assignee: Xerox Corporation
    Inventors: Robert P. Herloski, Jagdish C. Tandon, Douglas E. Proctor, Stephen J. Wenthe, Jr., Eugene A. Rogalski, Jr., Jeffrey L. Baniak, Paul A. Hosier