Patents by Inventor Preston Seu

Preston Seu 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: 8002371
    Abstract: A tip to be placed on a fluid-ejection device is filled with fluid. The fluid may be introduced into a substantially hollow body of the tip at a first end of the body. The body of the tip has a second end at which a fluid-ejection mechanism is disposed to eject the fluid as controlled by the fluid-ejection device. The fluid may be introduced into the substantially hollow body of the tip through of the fluid-ejection mechanism disposed at the second end of the body of the tip. The tip may further be identified and/or serviced, and the tip and/or the fluid-ejection device may further be validated.
    Type: Grant
    Filed: July 12, 2009
    Date of Patent: August 23, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Blair M. Kent, James P. Axtell, Trudy Benjamin, David Lowe, Preston Seu
  • Patent number: 7959874
    Abstract: A fluid-ejection device includes a handheld and/or mountable enclosure, a removable tip, a cap, a pneumatic fitting, and a controller. The removable tip has a fluid-ejection mechanism located at an end thereof. The cap is disposed on the end of the removable tip such that just the fluid-ejection mechanism is exposed through the cap. The pneumatic fitting extends from the enclosure and is receptive to placement of the removable tip thereon. The controller is situated within the enclosure to cause the removable tip to eject fluid.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: June 14, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Blair M. Kent, Manish Giri, Preston Seu
  • Patent number: 7935317
    Abstract: A fluid-ejection device includes a handheld and/or mountable enclosure, a pneumatic fitting, an electrical connector, and a controller. The pneumatic fitting extends from and/or through the enclosure and is receptive to placement of a tip thereon. The tip contains a supply of fluid, a fluid-ejection mechanism, and an electrical connector for the fluid-ejection mechanism. The electrical connector extends from and/or through the enclosure and is receptive to electrical coupling of the electrical connector of the tip. The controller is situated within the enclosure to cause the tip to eject the fluid via the electrical coupling of the electrical connectors of the tip and the fluid-ejection device.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: May 3, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James P. Axtell, Blair M. Kent, Jeffrey A. Nielsen, Manish Giri, Trudy Benjamin, David Lowe, Ronald R. Anderson, Preston Seu
  • Patent number: 7578591
    Abstract: A tip to be placed on a fluid-ejection device is filled with fluid. The fluid may be introduced into a substantially hollow body of the tip at a first end of the body. The body of the tip has a second end at which a fluid-ejection mechanism is disposed to eject the fluid as controlled by the fluid-ejection device. The fluid may be introduced into the substantially hollow body of the tip through of the fluid-ejection mechanism disposed at the second end of the body of the tip. The tip may further be identified and/or serviced, and the tip and/or the fluid-ejection device my further be validated.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: August 25, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Blair M. Kent, James P. Axtell, Trudy Benjamin, David Lowe, Preston Seu
  • Publication number: 20080260590
    Abstract: A fluid-ejection device includes a handheld and/or mountable enclosure, a removable tip, a cap, a pneumatic fitting, and a controller. The removable tip has a fluid-ejection mechanism located at an end thereof. The cap is disposed on the end of the removable tip such that just the fluid-ejection mechanism is exposed through the cap. The pneumatic fitting extends from the enclosure and is receptive to placement of the removable tip thereon. The controller is situated within the enclosure to cause the removable tip to eject fluid.
    Type: Application
    Filed: April 20, 2007
    Publication date: October 23, 2008
    Inventors: Blair M. Kent, Manish Giri, Preston Seu
  • Publication number: 20080068434
    Abstract: A fluid-ejection device includes a handheld and/or mountable enclosure, a pneumatic fitting, an electrical connector, and a controller. The pneumatic fitting extends from and/or through the enclosure and is receptive to placement of a tip thereon. The tip contains a supply of fluid, a fluid-ejection mechanism, and an electrical connector for the fluid-ejection mechanism. The electrical connector extends from and/or through the enclosure and is receptive to electrical coupling of the electrical connector of the tip. The controller is situated within the enclosure to cause the tip to eject the fluid via the electrical coupling of the electrical connectors of the tip and the fluid-ejection device.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 20, 2008
    Inventors: James P. Axtell, Blair M. Kent, Jeffrey A. Nielsen, Manish Giri, Trudy Benjamin, David Lowe, Ronald R. Anderson, Preston Seu
  • Publication number: 20080068435
    Abstract: A tip to be placed on a fluid-ejection device is filled with fluid. The fluid may be introduced into a substantially hollow body of the tip at a first end of the body. The body of the tip has a second end at which a fluid-ejection mechanism is disposed to eject the fluid as controlled by the fluid-ejection device. The fluid may be introduced into the substantially hollow body of the tip through of the fluid-ejection mechanism disposed at the second end of the body of the tip. The tip may further be identified and/or serviced, and the tip and/or the fluid-ejection device my further be validated.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 20, 2008
    Inventors: Blair M. Kent, James P. Axtell, Trudy Benjamin, David Lowe, Preston Seu
  • Publication number: 20060023038
    Abstract: An air-driven delivery assembly for delivering marking material to a print head includes a supply reservoir configured to contain a quantity of marking material, a containment chamber coupled to the supply reservoir, and a low pressure source coupled to the containment chamber wherein activation of the low pressure source draws marking material from the supply reservoir into the containment chamber.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventor: Preston Seu
  • Patent number: 6851800
    Abstract: A single-piece print cartridge body is provided. The print cartridge has a plurality of outlet ports disposed along a single axis that is substantially perpendicular to a direction of motion of the print cartridge body during printing. First and second compartments are respectively communicatively coupled to first and second cavities. The first and second cavities are substantially parallel to the single axis and are located on opposite sides of the single axis. A first channel interconnects the first cavity and a first one of the plurality of outlet ports. A second channel interconnects the second cavity and a second one of the plurality of outlet ports. The first and second channels are substantially perpendicular to the single axis.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: February 8, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Preston Seu
  • Publication number: 20050024450
    Abstract: A single-piece print cartridge body is provided. The print cartridge has a plurality of outlet ports disposed along a single axis that is substantially perpendicular to a direction of motion of the print cartridge body during printing. First and second compartments are respectively communicatively coupled to first and second cavities. The first and second cavities are substantially parallel to the single axis and are located on opposite sides of the single axis. A first channel interconnects the first cavity and a first one of the plurality of outlet ports. A second channel interconnects the second cavity and a second one of the plurality of outlet ports. The first and second channels are substantially perpendicular to the single axis.
    Type: Application
    Filed: July 29, 2003
    Publication date: February 3, 2005
    Inventor: Preston Seu
  • Patent number: 6331054
    Abstract: A multi-compartment ink-jet cartridge body structure, which includes a unitary body having a plurality of ink reservoir compartments. Each compartment includes an outlet port through which ink passes to feed the ink to an ink-jet printhead nozzle array. The body further includes a printhead nozzle array mounting region, and an ink manifold structure including a plurality of corresponding ink channels each leading from a corresponding outlet port to a feed opening formed at the printhead mounting region. The body and manifold structure are formed as a unitary one-piece structure. A lid is attached to the unitary body to cover the compartments. The body includes an external wall, and an access opening is formed in the wall adjacent the manifold structure. A seal structure attached to the body for sealing the access opening. The body structure can be fabricated by a plastic material using an injection molding process.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: December 18, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Preston Seu, Patrick Boyd, Gary Powell
  • Patent number: 6260961
    Abstract: A multi-compartment ink-jet cartridge body structure, including a unitary body having a plurality of ink reservoir compartments. Each compartment includes an outlet port through which ink passes to feed ink to an ink-jet printhead nozzle array. The body further includes a printhead nozzle array mounting region, and an ink manifold structure including a plurality of corresponding ink channels each leading from a corresponding outlet port to a feed opening formed at the printhead mounting region. The body and manifold structure are formed as a unitary one-piece structure. A lid is attached to the unitary body to cover the compartments. The body includes an external wall, and an access opening is formed in the wall adjacent the manifold structure. A seal structure attached to the body for sealing the access opening. The body structure can be fabricated by a plastic material using an injection molding process.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: July 17, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Preston Seu, Patrick Boyd, Gary Powell