Patents by Inventor Frank Mawdesley

Frank Mawdesley 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).

  • Patent number: 5438396
    Abstract: A toner anti-dribble device is attachable to a toner fixture having a vertical fill tube and a rotatable auger for feeding toner into a toner cartridge. The toner anti-dribble device includes a sleeve member engageable with the fill tube. A plurality of flexible insertion wires are inserted through the sleeve member into the toner fixture and disposed substantially perpendicular to an insertion direction of the toner. The wires are preferably equally spaced about a periphery of the toner fixture and extend radially inwardly into the toner fixture preferably a distance approximately one-third a diameter of the toner fixture. The arrangement positively prevents toner dribble between fills while being flexible enough to flex in proportion to the fill rate, thereby preventing fusing of the toner on the wires.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: August 1, 1995
    Assignee: Xerox Corporation
    Inventor: Frank Mawdesley