Patents by Inventor Stephen T. Avery

Stephen T. Avery 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: 7734244
    Abstract: An image development method implemented on a substrate conditioning unit for the drying and compression of a print substrate in an electrophotographic imaging process. The conditioning unit includes a heating mechanism for maintaining the heat of compression rollers, belts or nip rollers for compressing the substrate by a determined distance between the conditioning rollers, or by direct contact between a compression roller and a nip roller, and having an abhesive layer to prevent adhesion of the conditioning unit to the print substrate.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: June 8, 2010
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Jimmy E. Kelly, Stephen T. Avery
  • Patent number: 7611811
    Abstract: An imaging member having an adhesive charge transport layer is disclosed herein. The charge transport layer comprises a low surface energy polymer having siloxane segments in its backbone and a charge transport compound; it may further comprise a film-forming polymer. The charge transport layer has low surface energy, reduced coefficient of surface contact friction, and improved surface lubricity.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: November 3, 2009
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Stephen T. Avery, Kathleen M. Carmichael, Jimmy E. Kelly
  • Publication number: 20090253059
    Abstract: Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.
    Type: Application
    Filed: April 7, 2008
    Publication date: October 8, 2009
    Applicant: XEROX CORPORATION
    Inventors: Robert C. U. Yu, Edward F. Grabowski, Kathleen M. Carmichael, Stephen T. Avery, Satish Parikh
  • Publication number: 20090253058
    Abstract: Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.
    Type: Application
    Filed: April 7, 2008
    Publication date: October 8, 2009
    Applicant: XEROX CORPORATION
    Inventors: Robert C. U. Yu, Stephen T. Avery, Kathleen M. Carmichael
  • Publication number: 20090253063
    Abstract: Present embodiments pertain to an improved electrostatographic imaging member having low contact friction surfaces to ease sliding mechanical interaction and suppressing abrasion/wear failure and methods of preparing thereof. The improved imaging member has layers comprising one or two low surface energy polymeric materials that enhance the physical and mechanical functions and reduce the layers surface contact friction of the imaging member to extend service life.
    Type: Application
    Filed: April 7, 2008
    Publication date: October 8, 2009
    Applicant: XEROX CORPORATION
    Inventors: Robert C. U. Yu, Stephen T. Avery, Kent J. Evans
  • Patent number: 7527906
    Abstract: The presently disclosed embodiments are directed to anticurl back coatings useful in electrostatography. More particularly, the embodiments pertain to an electrophotographic imaging member with an improved anticurl back coating formulated by a polymer blend comprising two low surface energy polymeric materials that prevents curling, renders surface lubricity, eliminates electrostatic charge buildup, reduces surface contact friction, and enhances abrasion/wear resistance, and a process for making and using the imaging member.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: May 5, 2009
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Stephen T. Avery, Edward F. Grabowski, Satish Parikh, Donald J. Goodman
  • Patent number: 7504187
    Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to an improved electrophotographic imaging member having a protective overcoat layer comprising a low surface energy polymeric material to enhance the imaging member physical/mechanical function as well as render its service life extension and a process for making and using the member.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: March 17, 2009
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Stephen T. Avery, Kathleen M. Carmichael
  • Patent number: 7462434
    Abstract: An imaging member having an anti-curl back coating is disclosed. The anti-curl back coating comprises a low surface energy polymer having siloxane segments in its backbone and a film forming polymer. The anti-curl back coating has low surface energy and improved surface lubricity.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 9, 2008
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Stephen T. Avery
  • Patent number: 7455941
    Abstract: An imaging member having an anti-curl back coating comprising an inner layer and an outer layer is disclosed. The outer layer comprises a low surface energy polymer having siloxane segments in its backbone and the inner layer comprises a film forming polymer. The anti-curl back coating has low surface energy and improved surface lubricity.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: November 25, 2008
    Assignee: Xerox Corporation
    Inventors: Kent J. Evans, Robert C. U. Yu, Stephen T. Avery
  • Publication number: 20080202369
    Abstract: An image development method implemented on a substrate conditioning unit for the drying and compression of a print in an electrophotographic imaging process. The conditioning unit includes a heating mechanism for maintaining the heat of compression rollers, belts or nip rollers for compressing the substrate by a determined distance between the conditioning rollers, or by direct contact between a compression roller and a nip roller, and having an abhesive layer to prevent adhesion of the conditioning unit to the print substrate.
    Type: Application
    Filed: February 23, 2007
    Publication date: August 28, 2008
    Applicant: XEROX CORPORATION
    Inventors: Robert C.U. YU, Jimmy E. KELLY, Stephen T. AVERY
  • Publication number: 20070292797
    Abstract: The presently disclosed embodiments are directed to anticurl back coatings useful in electrostatography. More particularly, the embodiments pertain to an electrophotographic imaging member with an improved anticurl back coating formulated by a polymer blend comprising two low surface energy polymeric materials that prevents curling, renders surface lubricity, eliminates electrostatic charge buildup, reduces surface contact friction, and enhances abrasion/wear resistance, and a process for making and using the imaging member.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 20, 2007
    Applicant: Xerox Corporation
    Inventors: Robert C.U. Yu, Stephen T. Avery, Edward F. Grabowski, Satish Parikh, Donald J. Goodman
  • Patent number: 6652691
    Abstract: A process for providing an improved imaging member belt having a welded seam which exhibits greater resistance to dynamic fatigue induced seam cracking and delamination. An apparatus for achieving stress relaxation and eliminating protrusions in the seam region is also disclosed.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: November 25, 2003
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Satchidanand Mishra, Richard L. Post, Anthony M. Horgan, Bing R. Hsieh, Edward F. Grabowski, Donald C. VonHoene, Stephen T. Avery, Scott J. Griffin, Edward A. Domm
  • Patent number: 4351019
    Abstract: A facetted reflector faces a linear scanning illumination source and directs light onto an object plane. The tilt angle and length of each linear mirror segment (facet) comprising the reflector are designed to achieve maximum illumination at an object scan line consistent with the geometry of the particular illumination system.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: September 21, 1982
    Assignee: Xerox Corporation
    Inventors: Stephen T. Avery, John A. Durbin, William L. Lama, Paul H. Steibitz
  • Patent number: 4333723
    Abstract: An illumination system for a document copying machine including an optical cavity having interior walls coated with a white, diffusely reflecting material. One end of the cavity contains a platen for positioning a document to be copied while the opposing end contains a lens for forming an image of the document on a light sensitive image plane. Illumination from a single flash illumination source located within the cavity, undergoes multiple reflections from the walls resulting in a uniform diffuse illumination of the document. An optical element is positioned above the lamp to prevent direct light from striking the platen and, in a preferred embodiment, has an aperture therein for increasing illumination of the platen area overlying the lamp-blocker mounting.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: June 8, 1982
    Assignee: Xerox Corporation
    Inventors: Frederick A. Green, George R. Simpson, Stephen T. Avery, John A. Durbin
  • Patent number: 4190355
    Abstract: A facetted reflector faces a linear scanning illumination source and directs light onto an object plane. The tilt angle and length of each linear mirror segment (facet) comprising the reflector are designed to achieve maximum illumination at an object scan line consistent with the geometry of the particular illumination system.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: February 26, 1980
    Assignee: Xerox Corporation
    Inventors: Stephen T. Avery, John A. Durbin, William L. Lama, Paul H. Stiebitz