Patents by Inventor David Christopher Tattershall

David Christopher Tattershall 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).

  • Retractable exit tray for imaging apparatus
    Patent number: 6231043
    Abstract: The invention is directed to a media tray for an imaging apparatus for receiving a sheet of media. The media tray includes a base having a first side region and a second side region, a first sheet support member, a second sheet support member, a first mechanism, a second mechanism, and a force applying mechanism. The first and second mechanisms pivotally couple the first and second sheet support members to the side regions of the base, respectively. The force applying mechanism applies a force on the first and second sheet support members such that each of the first and second sheet support members diverge upwardly and outwardly from the base. The force applying mechanism includes a first cam member or first spring mechanism positioned between the first sheet support member and the base and a second cam member or second spring mechanism positioned between the second sheet support member and the base.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: May 15, 2001
    Assignee: Lexmark International, Inc.
    Inventors: Edmund Hulin James, III, Thomas Eugene Pangburn, David Christopher Tattershall, David Howard White