Patents by Inventor Fred A. Elder

Fred A. Elder 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).

  • Method and apparatus for destruction of biological matter in a ventilation system using UV radiation
    Publication number: 20040086422
    Abstract: A method and apparatus for determining a number of UV generators needed to destroy at least 90% of biological matter in an air stream of a ventilation system is disclosed. The method comprises determining the number of UV generators needed to destroy a proportion of biological matter in the air stream of the ventilation system.
    Type: Application
    Filed: November 4, 2002
    Publication date: May 6, 2004
    Inventors: Fred A. Elder, Thomas K. Leach, Patrick M. Leach, Timothy J. Leach, Donald Sniezak
  • Fuser oil compositions and processes thereof
    Patent number: 5395725
    Abstract: A process for fusing toner images to a substrate comprising: providing a fusing member having a fusing surface; heating said fuser member to an elevated temperature to fuse toner to said substrate; applying directly to said fusing surface a fuser release agent oil blend composition wherein volatile emissions arising from the fuser release agent oil blend are minimized or eliminated.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: March 7, 1995
    Assignee: Xerox Corporation
    Inventors: Lynn J. Bluett, Haig C. Donoian, Fred A. Elder
  • Process for controlling alloy fractionation
    Patent number: 5075191
    Abstract: Disclosed is a process for treating particles of selenium alloy to reduce fractionation when the particles are subsequently vacuum evaporated onto a substrate which comprises (1) heating particles of an alloy of selenium and an alloying component selected from the group are exposed to oxygen; (2) exposing the particles to water vapor; and (3) subjecting the particles previously exposed to oxygen and water vapor to a vacuum. Also disclosed is a process which comprises (1) providing particles of an alloy of selenium and an alloying component selected from the group consisting of tellurium, arsenic, and mixtures thereof; (2) forming selenium oxide on the surfaces of the particles; (3) converting the selenium oxide on the particle surfaces to selenious acid; and (4) removing the selenious acid from the particle surfaces.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: December 24, 1991
    Assignee: Xerox Corporation
    Inventors: Roger W. LaForce, Lawrence E. Kowalczyk, Santokh S. Badesha, Paul F. Zukoski, Monroe J. Hordon, Steven M. Sterling, Barry A. Lees, Fred A. Elder
  • Toner and developer compositions containing additives with certain morphologies
    Patent number: 4960665
    Abstract: A toner composition comprised of resin particles, and a component with a sponge, or non-flake like morphology selected from the group consisting of metal salts, metal salts of fatty acids, and mixtures thereof.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: October 2, 1990
    Assignee: Xerox Corporation
    Inventors: Fred A. Elder, Geoffrey M. T. Foley, William L. Goffe