Patents by Inventor Timothy L. Lincoln

Timothy L. Lincoln 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).

  • Acid doping latitude enlargement for photoreceptors
    Patent number: 5882831
    Abstract: An electrophotographic imaging member comprising a charge generating layer comprising trigonal selenium particles and a charge transport layer, the charge transport layer includinga protonic acid or Lewis acida charge transporting small molecule,a film forming polymer, andan additive selected from the group consisting of1-alkylpiperidene,triethylamine,a complex of 1-alkylpiperidene and a protonic acid or Lewis acid,a complex of triethylamine and a protonic acid or Lewis acid and mixtures thereof.This imaging member may be fabricated using a solvent for applying the charge transport layer.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: March 16, 1999
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Damodar M. Pai, Markus R. Silvestri, John F. Yanus, Timothy L. Lincoln, David J. Maty, Kathleen M. Carmichael
  • Feedback control system for polymer modification of toner resins and toners
    Patent number: 5750909
    Abstract: An apparatus for the preparation of a mixture of toner resin and initiator, to form a toner resin or toner mixture including cross-linked microgel particles is provided. The apparatus includes a toner extruder having the resin being conveyed therethrough and an adder for adding the initiator to the toner resin in the toner extruder to form the toner resin or mixture. The apparatus also includes a measurer for measuring the cross-linked microgel particles in the toner mixture substantially immediately after mixing in the toner extruder and transmitting a signal indicative of the quantity of cross-linked microgel particles in the toner resin or mixture. The apparatus also includes a controller for controlling the addition rate of initiator in response to the signals from the measurer.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: May 12, 1998
    Assignee: Xerox Corporation
    Inventors: Michael G. Hawkins, Hui Chang, Joo T. Chung, Jennifer E. Dewan, John J. Ianni, J. Stephen Kittelberger, Joseph L. Leonardo, Timothy L. Lincoln, Yvonne M. Kenney
  • Feedback control system for polymer modification of toner resins and toners
    Patent number: 5650484
    Abstract: An apparatus for the preparation of a mixture of toner resin and initiator, to form a toner resin or toner mixture including cross-linked microgel particles is provided. The apparatus includes a toner extruder having the resin being conveyed therethrough and an adder for adding the initiator to the toner resin in the toner extruder to form the toner resin or mixture. The apparatus also includes a measurer for measuring the cross-linked microgel particles in the toner mixture substantially immediately after mixing in the toner extruder and transmitting a signal indicative of the quantity of cross-linked microgel particles in the toner resin or mixture. The apparatus also includes a controller for controlling the addition rate of initiator in response to the signals from the measurer.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: July 22, 1997
    Assignee: Xerox Corporation
    Inventors: Michael G. Hawkins, Hui Chang, Joo T. Chung, Jennifer E. Dewan, John J. Ianni, J. Stephen Kittelberger, Joseph L. Leonardo, Timothy L. Lincoln, Yvonne M. Kenney
  • Toner compositions with charge enhancing additives
    Patent number: 5079122
    Abstract: A toner composition comprised of resin, pigment, and a nonionic fluorosurfactant charge enhancing additive.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: January 7, 1992
    Assignee: Xerox Corporation
    Inventors: Robert D. Bayley, Peter F. Erhardt, Edward J. Gutman, Thomas R. Hoffend, Timothy L. Lincoln, Joseph R. Weber, Raymond R. Wells