Patents by Inventor Nancy L. Belknap

Nancy L. Belknap 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: 20190025752
    Abstract: An exemplary grounding device includes an electrically conductive planar member having a hollow, central opening. Arms extend from inner edges of the hollow, central opening of the planar member. Each arm is angled relative to a surface of the planar member and each arm includes a facing portion having an electrically conductive cushion attached thereto. Each arm is approximately the same size and is configured to contact a shaft extending through the hollow, central opening of the planar member to form an electrical connection between the planar member and the shaft. The electrically conductive cushion is between the arm and the shaft. A tab projection extends from an outer edge of the planar member. Each tab projection is in the same plane as the planar member.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 24, 2019
    Applicant: XEROX CORPORATION
    Inventors: JONATHAN D. SADIK, NANCY L. BELKNAP, KARL E. KURZ
  • Patent number: 10185279
    Abstract: An exemplary grounding device includes an electrically conductive planar member having a hollow, central opening. Arms extend from inner edges of the hollow, central opening of the planar member. Each arm is angled relative to a surface of the planar member and each arm includes a facing portion having an electrically conductive cushion attached thereto. Each arm is approximately the same size and is configured to contact a shaft extending through the hollow, central opening of the planar member to form an electrical connection between the planar member and the shaft. The electrically conductive cushion is between the arm and the shaft. A tab projection extends from an outer edge of the planar member. Each tab projection is in the same plane as the planar member.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: January 22, 2019
    Assignee: Xerox Corporation
    Inventors: Jonathan D. Sadik, Nancy L. Belknap, Karl E. Kurz
  • Patent number: 10175631
    Abstract: A ground plate includes an electrically conductive planar member having a long axis and a perpendicular short axis. The planar member has an elongated hexagonal shape having two opposing long sides, two opposing relatively shorter sides, and four angled sides between the long sides and the relatively shorter sides with a hollow central opening. Spring clips extend from inner edges of the hollow central opening. The inner edges from which the spring clips extend are parallel to the long axis. Each spring clip includes a distal end portion curving outward from the hollow central opening and is configured to contact a shaft extending through the hollow central opening to form an electrical connection between the planar member and the shaft. A tab projection extends from an outer edge of each of the relatively shorter sides. Each tab projection is in the same plane as the planar member.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: January 8, 2019
    Assignee: Xerox Corporation
    Inventors: Jonathan D. Sadik, Karl E. Kurz, David B. Playfair, Nancy L. Belknap
  • Publication number: 20180329354
    Abstract: A ground plate includes an electrically conductive planar member having a long axis and a perpendicular short axis. The planar member has an elongated hexagonal shape having two opposing long sides, two opposing relatively shorter sides, and four angled sides between the long sides and the relatively shorter sides with a hollow central opening. Spring clips extend from inner edges of the hollow central opening. The inner edges from which the spring clips extend are parallel to the long axis. Each spring clip includes a distal end portion curving outward from the hollow central opening and is configured to contact a shaft extending through the hollow central opening to form an electrical connection between the planar member and the shaft. A tab projection extends from an outer edge of each of the relatively shorter sides. Each tab projection is in the same plane as the planar member.
    Type: Application
    Filed: May 10, 2017
    Publication date: November 15, 2018
    Applicant: XEROX CORPORATION
    Inventors: JONATHAN D. SADIK, KARL E. KURZ, DAVID B. PLAYFAIR, NANCY L. BELKNAP
  • Patent number: 9405254
    Abstract: Described herein is a device that generates a beam of light with uniform intensity. The device includes an array of light sources. The light generated passes through a beam splitter. One beam is used for feedback to maintain uniform intensity. The other beam passes through a barrel which is used to mold the beam with uniform intensity into the desired shape and to reduce divergence. The device can be used as part of a quality control system for testing a photoreceptor drum.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: August 2, 2016
    Assignee: XEROX CORPORATION
    Inventors: Markus R. Silvestri, Edward A. Domm, Mario Errico, Charles Hubert Henry Howes, Martin John Hinckel, Surendar Jeyadev, Nancy L. Belknap
  • Patent number: 9228161
    Abstract: Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): wherein R1 is H, alkyl, or COR?; wherein R? is alkyl; and wherein R2, R3, and R4 are independently alkyl. The undercoat layers are useful in imaging members because they are easily separated from the substrate. This reduces the number of steps necessary to reclaim the substrate.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: January 5, 2016
    Assignee: XEROX CORPORATION
    Inventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
  • Patent number: 9069268
    Abstract: A photoconductor that includes, for example, a supporting substrate, an optional ground plane layer, an optional hole blocking layer, an optional adhesive layer, an optional anticurl layer, a photogenerating layer, and a charge transport layer comprised of a first charge transport compound, a second dissimilar charge transport compound, a fluoropolymer and a polyarylatecarbonate.
    Type: Grant
    Filed: September 14, 2013
    Date of Patent: June 30, 2015
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan T. Dinh, Lanhui Zhang, Lin Ma, Nancy L. Belknap, Helen R. Cherniack
  • Publication number: 20150147075
    Abstract: Described herein is a device that generates a beam of light with uniform intensity. The device includes an array of light sources. The light generated passes through a beam splitter. One beam is used for feedback to maintain uniform intensity. The other beam passes through a barrel which is used to mold the beam with uniform intensity into the desired shape and to reduce divergence. The device can be used as part of a quality control system for testing a photoreceptor drum.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 28, 2015
    Applicant: Xerox Corporation
    Inventors: Markus R. Silvestri, Edward A. Domm, Mario Errico, Charles Hubert Henry Howes, Martin John Hinckel, Surendar Jeyadev, Nancy L. Belknap
  • Publication number: 20150132689
    Abstract: The presently disclosed embodiments are directed generally to an electrostatographic imaging member having low surface energy and is wear resistant. The imaging members include a charge transport layer that comprises a silicone ester additive that provides these beneficial properties.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: XEROX CORPORATION
    Inventors: JIN WU, Kenny-Tuan T. Dinh, Helen R. Cherniack, Lin Ma, Nancy L. Belknap
  • Patent number: 9023561
    Abstract: The presently disclosed embodiments are directed generally to an electrostatographic imaging member having low surface energy and is wear resistant. The imaging members include a charge transport layer that comprises a silicone ester additive that provides these beneficial properties.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: May 5, 2015
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan T. Dinh, Helen R. Cherniack, Lin Ma, Nancy L. Belknap
  • Publication number: 20150079511
    Abstract: A photoconductor that includes, for example, a supporting substrate, an optional ground plane layer, an optional hole blocking layer, an optional adhesive layer, an optional anticurl layer, a photogenerating layer, and a charge transport layer comprised of a first charge transport compound, a second dissimilar charge transport compound, a fluoropolymer and a polyarylatecarbonate.
    Type: Application
    Filed: September 14, 2013
    Publication date: March 19, 2015
    Applicant: Xerox Corporation
    Inventors: Jin Wu, Kenny-Tuan T. Dinh, Lanhui Zhang, Lin Ma, Nancy L. Belknap, Helen R. Cherniack
  • Patent number: 8940105
    Abstract: A photoreceptor undercoat containing a sulfonamide facilitates removal of coatings from the substrate.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: January 27, 2015
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack
  • Publication number: 20140323377
    Abstract: Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): wherein R1 is H, alkyl, or COR?; wherein R? is alkyl; and wherein R2, R3, and R4 are independently alkyl. The undercoat layers are useful in imaging members because they are easily separated from the substrate. This reduces the number of steps necessary to reclaim the substrate.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
  • Patent number: 8481235
    Abstract: A photoconductor that includes, for example, a supporting substrate, an undercoat layer thereover that contains a metal oxide, a phenolic resin, and a pentanediol ester; a photogenerating layer; and at least one charge transport layer.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: July 9, 2013
    Assignee: Xerox Corporation
    Inventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack, Marc J. Livecchi
  • Patent number: 8372568
    Abstract: The disclosed embodiments are directed to a method for removing photoreceptor coatings from a rigid substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor, in order to recover it for re-use in photoreceptor manufacturing. More specifically, the invention discloses a photoreceptor substrate recovery methodology that includes the creation of an inner release layer over the substrate and followed by subjecting the rejected or used electrophotographic photoreceptor to a step of soaking in a non-toxic and environmentally-friendly stripping solution that separates the coatings from the substrate.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: February 12, 2013
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
  • Patent number: 8361685
    Abstract: The disclosed embodiments are directed to processes for removing photoreceptor coatings from a substrate, wherein the photoreceptor coatings disposed over a substrate of an electrophotographic photoreceptor. More specifically, the present embodiments discloses a photoreceptor coatings removal process comprises subjecting an electrophotographic photoreceptor to a stripping solution that separates the coatings from the substrate.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: January 29, 2013
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
  • Publication number: 20120225380
    Abstract: A photoreceptor undercoat containing a sulfonamide facilitates removal of coatings from the substrate.
    Type: Application
    Filed: May 16, 2012
    Publication date: September 6, 2012
    Applicant: XEROX CORPORATION
    Inventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack
  • Patent number: 8257892
    Abstract: Embodiments relate generally to an imaging member that facilitates removal of the imaging member coating layers disposed over the imaging member and environmentally or “green” methods for using the same. More specifically, the present embodiments disclose an electrophotographic photoreceptor that includes a specifically formulated undercoat layer that allows easy removal of the photoreceptor layers disposed on top of the undercoat layer. The present embodiments provide a simple yet efficient method for reclaiming recycling or remanufacturing electrophotographic photoreceptors.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: September 4, 2012
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Yuhua Tong, Helen R. Cherniack, Edward F. Grabowski, Kent J. Evans, Nancy L. Belknap
  • Patent number: 8236469
    Abstract: The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital, apparatuses. In particular, the present embodiments pertain to an improved imaging member comprising a single layer in which the single layer further comprises a combination of one or more high mobility hole (charge) transport molecules and electron transport molecules.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: August 7, 2012
    Assignee: Xerox Corporation
    Inventors: Nancy L. Belknap, Katlyn Mallory, Helen Cherniack, Edward F. Grabowski
  • Patent number: D823262
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: July 17, 2018
    Assignee: Xerox Corporation
    Inventors: Jonathan D. Sadik, Nancy L. Belknap, Karl E. Kurz