Patents by Inventor Eugene L. Smith

Eugene L. Smith 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).

  • Variable transfer assist blade force
    Patent number: 5923921
    Abstract: An apparatus for mechanically assisting the transfer of an image from an image bearing member onto a substrate. The apparatus includes a transfer assist blade that forces a substrate toward an image bearing member, a motor, a mechanical assembly for coupling the motor to the transfer assist blade such that motor operation changes the transfer assist blade force, and a controller that controls the motor operation. The controller might receive inputs from a substrate sensor, an operator control panel, and/or a service adjustment. The controller might use those inputs to control the motor operation, and thus the transfer force. Alternatively, the controller might control the transfer force as a result of the operation of the overall machine, such as by changing the transfer force during duplex printing or during the transfer of various color images.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: July 13, 1999
    Assignee: Xerox Corporation
    Inventors: William M. OuYang, David P. Cropek, Donald L. Miller, Stephanie P. Burton, Julie A. Lapp, Eugene L. Smith
  • Multilingual operator prompting system which compares language control file version numbers in document and mass memory for changing language files
    Patent number: 5155849
    Abstract: The method of changing system files to be able to change either the primary or secondary language or both on a rigid disk to another language, and to provide the operator with the option of selecting either the primary or secondary language as the medium for the display messages and prompts by providing the language requirements on a floppy disk, identifying the specific files of the control to be altered to produce the language requirements, loading the floppy disk into a floppy disk drive, and transferring the language requirements to the rigid disk.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: October 13, 1992
    Assignee: Xerox Corporation
    Inventors: Robert S. Westfall, Dale T. Platteter, Richard K. Patterson, Eugene L. Smith, John R. Hill, Jr.
  • Flotation separation apparatus and method
    Patent number: 4425232
    Abstract: A flotation separation cell is disclosed having a rotor-stator pump assembly wherein a rotor body comprises integrally formed hub, blade and top plate members. These members form a gas chamber in an upper sector of the rotor. The blades are curvilinear and of parabolic or vortex shape. A gas stream which is conveyed to the gas chamber is discharged from the gas chamber in a transverse direction and flows in gas pockets along surfaces of moving blades for dispersion in a slurry.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: January 10, 1984
    Assignee: Dorr-Oliver Incorporated
    Inventors: George A. Lawrence, Michael J. Prevett, Eugene L. Smith
  • Process for beneficiation of non-sulfide iron ores
    Patent number: 4148720
    Abstract: Improved beneficiation of non-sulfide iron ores by froth flotation results when the collector employed is a mixture of a naturally derived fatty acid and a partial ester of a polycarboxylic acid having at least one free carboxylic acid group.
    Type: Grant
    Filed: May 3, 1977
    Date of Patent: April 10, 1979
    Assignee: American Cyanamid Company
    Inventors: Samuel S. Wang, Eugene L. Smith
  • Touch video graphic icon for a portion of a display
    Patent number: D422989
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: April 18, 2000
    Assignee: Xerox Corporation
    Inventors: Thomas J. Herceg, James B. Williams, Jr., Eugene L. Smith, Joseph L. Filion