Patents by Inventor Daniel E. Costello

Daniel E. Costello 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).

  • Endless belt dry toner agitator
    Patent number: 6823162
    Abstract: A toner cartridge includes a housing which defines a toner reservoir. A rotatable endless belt is located within the toner reservoir. The belt can be used to agitate or stir toner which can be placed in the toner reservoir. In one example the belt has periodic openings in the belt which allow toner to pass through the belt so that agitated toner can be provided to toner distribution components within and outside of the toner cartridge.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: November 23, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James P. Terry, Paxton J. Tupper, Daniel E. Costello
  • Endless belt dry toner agitator
    Publication number: 20040081487
    Abstract: A toner cartridge includes a housing which defines a toner reservoir. A rotatable endless belt is located within the toner reservoir. The belt can be used to agitate or stir toner which can be placed in the toner reservoir. In one example the belt has periodic openings in the belt which allow toner to pass through the belt so that agitated toner can be provided to toner distribution components within and outside of the toner cartridge.
    Type: Application
    Filed: September 12, 2003
    Publication date: April 29, 2004
    Inventors: James P. Terry, Paxton J. Tupper, Daniel E. Costello
  • Endless belt dry toner agitator
    Patent number: 6671481
    Abstract: A toner cartridge includes a housing which defines a toner reservoir. A rotatable endless belt is located within the toner reservoir. The belt can be used to agitate or stir toner which can be placed in the toner reservoir. In one example the belt has periodic openings in the belt which allow toner to pass through the belt so that agitated toner can be provided to toner distribution components within and outside of the toner cartridge.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: December 30, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James P. Terry, Paxton J. Tupper, Daniel E. Costello