Patents by Inventor Thomas L. DiGravio

Thomas L. DiGravio 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: 6848978
    Abstract: An imageable belt includes a seam that is finished using an abrasive finishing machine. The seam comprises a seam width with adhesive material disposed thereon. The finishing process includes an abrasive finishing media with a finishing surface and a backer bar. The backer bar comprises a backer bar radius. The backer bar surface is positioned against the belt inner surface so that the belt outer surface contacts the finishing surface to define a finishing contact arc with respect to the backer bar radius. A tension, feed rate and pressure are applied to the finishing media. Using the finishing machine, the seam is then finished to remove the adhesive material. The finishing process results in a seam that is imageable. In one embodiment, the backer bar radius is adjusted so that the finishing contact arc covers the seam width.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: February 1, 2005
    Assignee: Xerox Corporation
    Inventors: Paul F. Mastro, Daniel L. Coughlin, Jr., Thomas L. DiGravio
  • Publication number: 20040014402
    Abstract: An imageable belt includes a seam that is finished using an abrasive finishing machine. The seam comprises a seam width with adhesive material disposed thereon. The finishing process includes an abrasive-finishing media with a finishing surface and a backer bar. The backer bar comprises a backer bar radius. The backer bar surface is positioned against the belt inner surface so that the belt outer surface contacts the finishing surface to define a finishing contact arc with respect to the backer bar radius. A tension, feed rate and pressure are applied to the finishing media. Using the finishing machine, the seam is then finished to remove the adhesive material. The finishing process results in a seam that is imageable. In one embodiment, the backer bar radius is adjusted so that the finishing contact arc covers the seam width.
    Type: Application
    Filed: May 1, 2003
    Publication date: January 22, 2004
    Applicant: Xerox Corporation
    Inventors: Paul F. Mastro, Daniel L. Coughlin, Thomas L. DiGravio
  • Publication number: 20030039791
    Abstract: An intermediate transfer belt includes a seam that is finished using a finishing machine. The intermediate transfer belt comprises a belt outer surface and a belt inner surface. The seam comprises a seam outer surface of a seam width with adhesive material disposed thereon. The finishing process includes a finishing media with a finishing surface and a backer bar. The backer bar comprises a backer bar radius and a backer bar surface with a backer surface curvature based on the backer bar radius. The backer bar surface is positioned against the belt inner surface so that the belt outer surface contacts the finishing surface to define a finishing contact arc with respect to the backer bar radius. A tension, feed rate and pressure are applied to the finishing media. The backer bar radius is then adjusted so that the finishing contact arc covers the seam width. Using the finishing machine, the seam is then finished to remove the adhesive material.
    Type: Application
    Filed: October 9, 2002
    Publication date: February 27, 2003
    Applicant: Xerox Corporation
    Inventors: Paul F. Mastro, Daniel L. Coughlin, Thomas L. DiGravio
  • Publication number: 20030031822
    Abstract: An intermediate transfer belt includes a seam that is finished using a finishing machine. The intermediate transfer belt comprises a belt outer surface and a belt inner surface. The seam comprises a seam outer surface of a seam width with adhesive material disposed thereon. The finishing process includes a finishing media with a finishing surface and a backer bar. The backer bar comprises a backer bar radius and a backer bar surface with a backer surface curvature based on the backer bar radius. The backer bar surface is positioned against the belt inner surface so that the belt outer surface contacts the finishing surface to define a finishing contact arc with respect to the backer bar radius. A tension, feed rate and pressure are applied to the finishing media. The backer bar radius is then adjusted so that the finishing contact arc covers the seam width. Using the finishing machine, the seam is then finished to remove the adhesive material.
    Type: Application
    Filed: October 9, 2002
    Publication date: February 13, 2003
    Applicant: Xerox Corporation
    Inventors: Paul F. Mastro, Daniel L. Coughlin, Thomas L. DiGravio
  • Patent number: 6450865
    Abstract: A support for supporting a work piece to be machined is provided. The support is for use in a machine adapted to receive fluid from a fluid source. The machine includes a tool for removing material from the work piece. The support includes a body defining a chamber therein and an inlet operably associated with said body. The inlet is in communication with the chamber. The inlet is adapted for communication with the fluid source. The support also includes an outlet operably associated with the body and in communication with the chamber. The outlet is adapted to provide a stream of fluid for supporting the work piece.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: September 17, 2002
    Assignee: Xerox Corporation
    Inventors: Grethel K. Mulroy, Thomas L. DiGravio, Steven M. Sippel
  • Patent number: 6327452
    Abstract: A roller includes a core and a ceramic coating formed over the core. The roller has a composite runout of less than 20 &mgr;m and a total indicator reading runout of less than 7 &mgr;m. The ceramic coating has a smooth finish and has controlled electric properties. This roller can be used as a donor roller for transporting toner to a photoconductive member so as to achieve high-quality image development.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: December 4, 2001
    Assignee: Xerox Corporation
    Inventors: Timothy R. Jaskowiak, Ann M. Kazakos, Joy L. Longhenry, Michelle L. Schlafer, Grethel K. Mulroy, Thomas L. DiGravio, Kevin H. Taft, Frederick B. White, Mark Gelin
  • Publication number: 20010018323
    Abstract: A support for supporting a work piece to be machined is provided. The support is for use in a machine adapted to receive fluid from a fluid source. The machine includes a tool for removing material from the work piece. The support includes a body defining a chamber therein and an inlet operably associated with said body. The inlet is in communication with the chamber. The inlet is adapted for communication with the fluid source. The support also includes an outlet operably associated with the body and in communication with the chamber. The outlet is adapted to provide a stream of fluid for supporting the work piece.
    Type: Application
    Filed: May 7, 2001
    Publication date: August 30, 2001
    Applicant: Xerox Corporation
    Inventors: Grethel K. Mulroy, Thomas L. DiGravio, Steven M. Sippel
  • Patent number: 6273785
    Abstract: A support for supporting a work piece to be machined is provided. The support is for use in a machine adapted to receive fluid from a fluid source. The machine includes a tool for removing material from the work piece. The support includes a body defining a chamber therein and an inlet operably associated with said body. The inlet is in communication with the chamber. The inlet is adapted for communication with the fluid source. The support also includes an outlet operably associated with the body and in communication with the chamber. The outlet is adapted to provide a stream of fluid for supporting the work piece.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: August 14, 2001
    Assignee: Xerox Corporation
    Inventors: Grethel K. Mulroy, Thomas L. DiGravio, Steven M. Sippel
  • Patent number: 6244937
    Abstract: A vibration inducing grinding wheel for removing material from a workpiece is provided. The vibration inducing grinding wheel is for use in a grinding machine. The vibration inducing grinding wheel includes a generally cylindrically shaped body defining a cylindrical outer periphery thereof. At least one of the composition and the contour of the outer periphery is selected so as to provide a vibration to the grinding machine such that the straightness of the workpiece is thereby improved with respect to the straightness of the workpiece ground by a standard grinding wheel having a cylindrical outer periphery thereof, the contour and composition of the outer periphery of the standard grinding wheel being uniform.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: June 12, 2001
    Assignee: Xerox Corporation
    Inventors: Timothy R. Jaskowiak, Grethel K. Mulroy, Thomas L. DiGravio
  • Patent number: 6120356
    Abstract: A vibration inducing grinding wheel for removing material from a workpiece is provided. The vibration inducing grinding wheel is for use in a grinding machine. The vibration inducing grinding wheel includes a generally cylindrically shaped body defining a cylindrical outer periphery thereof. At least one of the composition and the contour of the outer periphery is selected so as to provide a vibration to the grinding machine such that the straightness of the workpiece is thereby improved with respect to the straightness of the workpiece ground by a standard grinding wheel having a cylindrical outer periphery thereof, the contour and composition of the outer periphery of the standard grinding wheel being uniform.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: September 19, 2000
    Assignee: Xerox Corporation
    Inventors: Timothy R. Jaskowiak, Grethel K. Mulroy, Thomas L. DiGravio
  • Patent number: 5592863
    Abstract: A method for producing discontinuous chips during the machining of a work piece by a cutting tool is provided. The method includes the steps of engaging the cutting tool into the workpiece to produce a continuous chip and directing a stream of cryogen toward the continuous chip, so as to rapidly cool the continuous chip and fracture the continuous chip into the discontinuous chips.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: January 14, 1997
    Assignee: Xerox Corporation
    Inventors: Timothy R. Jaskowiak, Daniel R. Gilmore, III, Thomas L. DiGravio
  • Patent number: 5465138
    Abstract: A development apparatus includes a housing defining a chamber holding a supply of two-component developer material including toner, and magnetizable carrier beads. The development apparatus also includes an increased reliability roller assembly within the housing for repeatably transporting a desired quantity of attracted developer material through a development zone. The roller assembly includes a first and a second preformed end cap sections each having a stub shaft portion and a cylindrical capping portion connected to the stub shaft portion and having an outer surface and assembly recesses formed into the outer surface. The roller assembly also includes a sleeve section connecting the first and the second preformed end cap sections, the sleeve section being spincast as a layer over each of the cylindrical capping portions, and into the assembly recesses of the end cap sections, so as to precisely and reliably assemble each capping portion, to the sleeve section.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: November 7, 1995
    Assignee: Xerox Corporation
    Inventors: Timothy R. Jaskowiak, Daniel L. Coughlin, Julie A. Perez, Daniel R. Gilmore, III, Thomas L. DiGravio, Kevin H. Taft