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).
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Publication number: 20190025752Abstract: 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: ApplicationFiled: July 18, 2017Publication date: January 24, 2019Applicant: XEROX CORPORATIONInventors: JONATHAN D. SADIK, NANCY L. BELKNAP, KARL E. KURZ
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Patent number: 10185279Abstract: 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: GrantFiled: July 18, 2017Date of Patent: January 22, 2019Assignee: Xerox CorporationInventors: Jonathan D. Sadik, Nancy L. Belknap, Karl E. Kurz
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Patent number: 10175631Abstract: 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: GrantFiled: May 10, 2017Date of Patent: January 8, 2019Assignee: Xerox CorporationInventors: Jonathan D. Sadik, Karl E. Kurz, David B. Playfair, Nancy L. Belknap
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Publication number: 20180329354Abstract: 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: ApplicationFiled: May 10, 2017Publication date: November 15, 2018Applicant: XEROX CORPORATIONInventors: JONATHAN D. SADIK, KARL E. KURZ, DAVID B. PLAYFAIR, NANCY L. BELKNAP
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Patent number: 9405254Abstract: 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: GrantFiled: November 26, 2013Date of Patent: August 2, 2016Assignee: XEROX CORPORATIONInventors: Markus R. Silvestri, Edward A. Domm, Mario Errico, Charles Hubert Henry Howes, Martin John Hinckel, Surendar Jeyadev, Nancy L. Belknap
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Patent number: 9228161Abstract: 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: GrantFiled: July 11, 2014Date of Patent: January 5, 2016Assignee: XEROX CORPORATIONInventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
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Patent number: 9069268Abstract: 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: GrantFiled: September 14, 2013Date of Patent: June 30, 2015Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan T. Dinh, Lanhui Zhang, Lin Ma, Nancy L. Belknap, Helen R. Cherniack
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Publication number: 20150147075Abstract: 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: ApplicationFiled: November 26, 2013Publication date: May 28, 2015Applicant: Xerox CorporationInventors: Markus R. Silvestri, Edward A. Domm, Mario Errico, Charles Hubert Henry Howes, Martin John Hinckel, Surendar Jeyadev, Nancy L. Belknap
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Publication number: 20150132689Abstract: 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: ApplicationFiled: November 13, 2013Publication date: May 14, 2015Applicant: XEROX CORPORATIONInventors: JIN WU, Kenny-Tuan T. Dinh, Helen R. Cherniack, Lin Ma, Nancy L. Belknap
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Patent number: 9023561Abstract: 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: GrantFiled: November 13, 2013Date of Patent: May 5, 2015Assignee: Xerox CorporationInventors: Jin Wu, Kenny-Tuan T. Dinh, Helen R. Cherniack, Lin Ma, Nancy L. Belknap
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Publication number: 20150079511Abstract: 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: ApplicationFiled: September 14, 2013Publication date: March 19, 2015Applicant: Xerox CorporationInventors: Jin Wu, Kenny-Tuan T. Dinh, Lanhui Zhang, Lin Ma, Nancy L. Belknap, Helen R. Cherniack
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Patent number: 8940105Abstract: A photoreceptor undercoat containing a sulfonamide facilitates removal of coatings from the substrate.Type: GrantFiled: May 16, 2012Date of Patent: January 27, 2015Assignee: Xerox CorporationInventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack
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Publication number: 20140323377Abstract: 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: ApplicationFiled: July 11, 2014Publication date: October 30, 2014Inventors: Yuhua Tong, Jin Wu, Robert P. Altavela, Edward F. Grabowski, Kent J. Evans, Adilson P. Ramos, Nancy L. Belknap, Helen R. Cherniack
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Patent number: 8481235Abstract: 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: GrantFiled: August 26, 2010Date of Patent: July 9, 2013Assignee: Xerox CorporationInventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack, Marc J. Livecchi
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Patent number: 8372568Abstract: 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: GrantFiled: November 5, 2009Date of Patent: February 12, 2013Assignee: Xerox CorporationInventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
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Patent number: 8361685Abstract: 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: GrantFiled: November 5, 2009Date of Patent: January 29, 2013Assignee: Xerox CorporationInventors: Robert C. U. Yu, Kent J. Evans, Yuhua Tong, Nancy L. Belknap, Helen R. Cherniack, Robert P. Altavela, Edward F. Grabowski
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Publication number: 20120225380Abstract: A photoreceptor undercoat containing a sulfonamide facilitates removal of coatings from the substrate.Type: ApplicationFiled: May 16, 2012Publication date: September 6, 2012Applicant: XEROX CORPORATIONInventors: Yuhua Tong, Jin Wu, Nancy L. Belknap, Helen R. Cherniack
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Patent number: 8257892Abstract: 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: GrantFiled: January 22, 2010Date of Patent: September 4, 2012Assignee: Xerox CorporationInventors: Jin Wu, Yuhua Tong, Helen R. Cherniack, Edward F. Grabowski, Kent J. Evans, Nancy L. Belknap
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Patent number: 8236469Abstract: 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: GrantFiled: February 10, 2010Date of Patent: August 7, 2012Assignee: Xerox CorporationInventors: Nancy L. Belknap, Katlyn Mallory, Helen Cherniack, Edward F. Grabowski
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Patent number: D823262Type: GrantFiled: May 10, 2017Date of Patent: July 17, 2018Assignee: Xerox CorporationInventors: Jonathan D. Sadik, Nancy L. Belknap, Karl E. Kurz