Patents by Inventor Hal Mantooth

Hal Mantooth 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).

  • Removing gas from a printhead
    Patent number: 7097274
    Abstract: A method of removing gas from a printhead is provided. A sealing material may be applied to orifices of a printhead from external the printhead to restrict passage of fluid through the orifices. Ink may be moved through a printhead conduit disposed in fluid communication with the orifices to create an inward suction adjacent the orifices so that the gas is displaced from adjacent the orifices.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: August 29, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hal Mantooth, Kit Harper, Donald L. Michael, Ian P. Anderson
  • Removing gas from a printhead
    Publication number: 20050168520
    Abstract: A method of removing gas from a printhead is provided. A sealing material may be applied to orifices of a printhead from external the printhead to restrict passage of fluid through the orifices. Ink may be moved through a printhead conduit disposed in fluid communication with the orifices to create an inward suction adjacent the orifices so that the gas is displaced from adjacent the orifices.
    Type: Application
    Filed: January 30, 2004
    Publication date: August 4, 2005
    Inventors: Hal Mantooth, Kit Harper, Donald Michael, Ian Anderson