Patents by Inventor Tom Dragnes

Tom Dragnes 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).

  • Wide array fluid ejection device
    Patent number: 7547084
    Abstract: A fluid ejection device includes a first set of N memory elements each storing a fire enable value, each of the N memory elements configured to be updated. The fluid ejection device further includes N fluid ejecting elements, each fluid ejecting element corresponding to a different one of the N memory elements and configured to receive the fire enable value from the corresponding memory element, wherein the fluid ejecting element is enabled to eject a fluid when the fire enable value is an enabling value.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: June 16, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John Wade, George C. Lysy, Tom Dragnes
  • Wide array fluid ejection device
    Patent number: 7543900
    Abstract: A fluid ejection device includes a first set of N memory elements each storing a fire enable value, each of the N memory elements configured to be updated. The fluid ejection device further includes N fluid ejecting elements, each fluid ejecting element corresponding to a different one of the N memory elements and configured to receive the fire enable value from the corresponding memory element, wherein the fluid ejecting element is enabled to eject a fluid when the fire enable value is an enabling value.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: June 9, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John Wade, George C. Lysy, Tom Dragnes
  • Wide array fluid ejection device
    Publication number: 20070257953
    Abstract: A fluid ejection device includes a first set of N memory elements each storing a fire enable value, each of the N memory elements configured to be updated. The fluid ejection device further includes N fluid ejecting elements, each fluid ejecting element corresponding to a different one of the N memory elements and configured to receive the fire enable value from the corresponding memory element, wherein the fluid ejecting element is enabled to eject a fluid when the fire enable value is an enabling value.
    Type: Application
    Filed: July 9, 2007
    Publication date: November 8, 2007
    Inventors: John Wade, George Lysy, Tom Dragnes
  • Wide Array Fluid Ejection Device
    Publication number: 20070216716
    Abstract: A fluid ejection device includes a first set of N memory elements each storing a fire enable value, each of the N memory elements configured to be updated. The fluid ejection device further includes N fluid ejecting elements, each fluid ejecting element corresponding to a different one of the N memory elements and configured to receive the fire enable value from the corresponding memory element, wherein the fluid ejecting element is enabled to eject a fluid when the fire enable value is an enabling value.
    Type: Application
    Filed: May 29, 2007
    Publication date: September 20, 2007
    Inventors: John Wade, George Lysy, Tom Dragnes
  • Wide array fluid ejection device
    Patent number: 7240981
    Abstract: A fluid ejection device includes a first set of N memory elements each storing a fire enable value, each of the N memory elements configured to be updated. The fluid ejection device further includes N fluid ejecting elements, each fluid ejecting element corresponding to a different one of the N memory elements and configured to receive the fire enable value from the corresponding memory element, wherein the fluid ejecting element is enabled to eject a fluid when the fire enable value is an enabling value.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: July 10, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John Wade, George C. Lysy, Tom Dragnes
  • Determining whether thermal fluid-ejection nozzle ejected fluid upon firing based on temperature and/or resistance
    Patent number: 7232079
    Abstract: A method of one embodiment of the invention is disclosed that determines the temperature and/or firing resistance of a thermal fluid-ejection nozzle as the fluid-ejection nozzle is fired. The method determines whether the fluid-ejection nozzle ejected fluid upon firing based on the temperature and/or firing resistance of the fluid-ejection nozzle.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: June 19, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kenneth J. Courian, John Wade, Xavier Soler, Carlos Boy, Tom Dragnes
  • Wide array fluid ejection device
    Publication number: 20050190217
    Abstract: A fluid ejection device includes a first set of N memory elements each storing a fire enable value, each of the N memory elements configured to be updated. The fluid ejection device further includes N fluid ejecting elements, each fluid ejecting element corresponding to a different one of the N memory elements and configured to receive the fire enable value from the corresponding memory element, wherein the fluid ejecting element is enabled to eject a fluid when the fire enable value is an enabling value.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 1, 2005
    Inventors: John Wade, George Lysy, Tom Dragnes
  • Determining whether thermal fluid-ejection nozzle ejected fluid upon firing based on temperature and/or resistance
    Publication number: 20050077377
    Abstract: A method of one embodiment of the invention is disclosed that determines the temperature and/or firing resistance of a thermal fluid-ejection nozzle as the fluid-ejection nozzle is fired. The method determines whether the fluid-ejection nozzle ejected fluid upon firing based on the temperature and/or firing resistance of the fluid-ejection nozzle.
    Type: Application
    Filed: September 12, 2003
    Publication date: April 14, 2005
    Inventors: Kenneth Courian, John Wade, Xavier Soler, Carlos Boy, Tom Dragnes
  • Bouncing ball apparatus
    Patent number: 6547567
    Abstract: An apparatus has a ball that bounces vertically on a vibrating piston. The system demonstrates the complex dynamics impact systems for education and research in dynamical systems theory and feedback control.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: April 15, 2003
    Assignee: The University of Arizona
    Inventors: Thomas Lange Vincent, Bradley Evan Paden, Randolph James Crowson, II, Tom Dragnes, David Brian Paden