Patents by Inventor Andrew T. McKenna

Andrew T. McKenna 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).

  • Reduction of electrostatic charge in waste bottle
    Patent number: 5888276
    Abstract: An apparatus for reducing electrostatic charge of particles in a waste container. In one embodiment the waste container is coated with a liquid having a viscosity sufficient to prevent tribocharging between the waste container and the waster toner particles, and to collect toner particles deposited from the cyclone separator into the waste container. Another embodiment describes the use of a flange extending into the waste container to prevent tribocharging that can cause explosions in the waste toner bottle.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: March 30, 1999
    Assignee: Xerox Corporation
    Inventors: Michael J. Price, Andrew T. McKenna, Bruce J. Parks, Robert E. Rosdahl, Jr., Douglas A. Lundy