Patents by Inventor Douglas Arthur McKeown

Douglas Arthur McKeown 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).

  • Paper jam-resistant detack corotron for use in an electrostatographic imaging apparatus
    Patent number: 7532845
    Abstract: An improved detack corotron reduces the likelihood of a paper jam arising from a curled paper edge getting caught in the corotron. The detack corotron includes an electrically conductive coronode having a plurality of field emitters, each field emitter having a terminating end, the terminating ends of the field emitters being spatially separated from one another, and a paper edge guide having a plurality of generally planar members, the generally planar members being perpendicular to the conductive coronode and the generally planar members having a height that extends above the terminating ends of the field emitters.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: May 12, 2009
    Assignee: Xerox Corporation
    Inventors: Robert Arnold Gross, David Sekovski, Douglas Arthur McKeown, David Kenneth Ahl, Michael Nicholas Soures