Patents by Inventor Ian G. Harpur

Ian G. Harpur 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 reducing residual toner in a rotating container
    Patent number: 8892008
    Abstract: An approach is provided for reducing an amount of residual toner remaining in a rotating container. The approach involves rotating a rotatable vessel configured to contain a toner. The approach also involves a causing a plurality of beads that include at least one material configured to be attracted to a magnetic strip that extends in a direction parallel to an axial direction of movement of the toner between a first end and a second end of the vessel. The plurality of beads, when attracted to the magnetic strip, cooperate with helical features of the vessel and the internal surface of a body section of the vessel to transport at least a portion of the toner in an axial direction from the first end of the vessel to the second end of the vessel as the vessel is rotated.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 18, 2014
    Assignee: Xerox Corporation
    Inventors: Ian G. Harpur, Michael John Wilsher, Richard David Emms, Derek William Judd
  • METHOD AND APPARATUS FOR REDUCING RESIDUAL TONER IN A ROTATING CONTAINER
    Publication number: 20140270857
    Abstract: An approach is provided for reducing an amount of residual toner remaining in a rotating container. The approach involves rotating a rotatable vessel configured to contain a toner. The approach also involves a causing a plurality of beads that include at least one material configured to be attracted to a magnetic strip that extends in a direction parallel to an axial direction of movement of the toner between a first end and a second end of the vessel. The plurality of beads, when attracted to the magnetic strip, cooperate with helical features of the vessel and the internal surface of a body section of the vessel to transport at least a portion of the toner in an axial direction from the first end of the vessel to the second end of the vessel as the vessel is rotated.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: XEROX CORPORATION
    Inventors: Ian G. Harpur, Michael John Wilsher, Richard David Emms, Derek William Judd