Patents by Inventor Michael L Hilton

Michael L Hilton 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: 8360552
    Abstract: In one embodiment, a carriage for carrying a fluid ejector cartridge includes: a body having a bay therein for holding a fluid ejector cartridge; a pump mounted to the body; a retaining cover connected to the body, the cover movable between an open position in which the cartridge may be installed in or removed from the bay and a closed position in which the cover contacts the cartridge in the bay to help retain the cartridge in place in the bay; and a port disposed within the cover such that the cover port is connected to a port on the cartridge when the cartridge is installed in the bay and the cover is in the closed position, the cover port operatively connected to the pump so that a fluid may be pumped into the cartridge through the cover and cartridge ports.
    Type: Grant
    Filed: October 3, 2010
    Date of Patent: January 29, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Greg K. Justice, Jeffrey T. Hendricks, Michael L. Hilton, Patrick Therien
  • Patent number: 7997698
    Abstract: An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The on-axis printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the on-axis printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: August 16, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeremy A Davis, Melissa S. Gedraitis, Marc A. Baldwin, Louis Barinaga, Daniel D Dowell, Ashley E Childs, Mark A. Smith, Charles R. Steinmetz, Ralph L. Stathem, Jeffrey D. Langford, Michael L. Hilton
  • Publication number: 20110018948
    Abstract: In one embodiment, a carriage for carrying a fluid ejector cartridge includes: a body having a bay therein for holding a fluid ejector cartridge; a pump mounted to the body; a retaining cover connected to the body, the cover movable between an open position in which the cartridge may be installed in or removed from the bay and a closed position in which the cover contacts the cartridge in the bay to help retain the cartridge in place in the bay; and a port disposed within the cover such that the cover port is connected to a port on the cartridge when the cartridge is installed in the bay and the cover is in the closed position, the cover port operatively connected to the pump so that a fluid may be pumped into the cartridge through the cover and cartridge ports.
    Type: Application
    Filed: October 3, 2010
    Publication date: January 27, 2011
    Inventors: Greg K. Justice, Jeffrey T. Hendricks, Michael L. Hilton, Patrick Therien
  • Patent number: 7510274
    Abstract: An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: March 31, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeremy A Davis, Melissa S. Gedraitis, Marc A. Baldwin, Louis Barinaga, Daniel D Dowell, Ashley E Childs, Mark A. Smith, Charles R. Steinmetz, Ralph L. Stathem, Jeffrey D. Langford, Michael L. Hilton
  • Publication number: 20090051742
    Abstract: An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The printhead assembly includes at least one reservoir and a corresponding standpipe separated by a particle filter. At least one tube connects the off-axis ink supply container to the printhead assembly. A first valve is configured to selectively open a flow path between the tube and the reservoir. A second valve is configured to selectively open a flow path between the standpipe and the tube. A method for controlling effects of accumulated air in a printhead assembly. The printhead assembly has at least one ink reservoir and one standpipe separated by a particle filter. The printhead assembly is fluidicly connected to at least one off-axis ink supply container by at least one tube. The method includes drawing air from said printhead assembly through said standpipe into the tube.
    Type: Application
    Filed: October 30, 2008
    Publication date: February 26, 2009
    Inventors: JEREMY A. DAVIS, Melissa S. Gedraitis, Marc A. Baldwin, Louis Barinaga, Daniel D. Dowell, Ashley E. Childs, Mark A. Smith, Charles R. Steinmetz, Ralph L. Stathem, Jeffrey D. Langford, Michael L. Hilton
  • Patent number: 7448726
    Abstract: Example embodiments of wiping are shown and described in which a print head is wiped along a non-linear path.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: November 11, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kit L Harper, Michael L Hilton, Andrew T. Davis