Patents by Inventor Steven T. Castle

Steven T. Castle 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: 10589530
    Abstract: In one example in accordance with the present disclosure a printer cartridge is described. The printer cartridge includes multiple backpressure chambers in fluid communication with a shared free fluid chamber. The backpressure chambers are to supply a fluid to nozzles of a portion of a fluidic ejection assembly and to provide backpressure to the nozzles of the fluidic ejection assembly during deposition of fluid onto a print medium.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: March 17, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Silam J. Choy, Steven T. Castle, Arun K. Agarwal, Blair Kent
  • Patent number: 10232629
    Abstract: In some examples, a container assembly includes a first body to supply a printing composition, the first body comprising a first port, and the container assembly includes a second body to store a reserve printing composition, the second body comprising a second port. An interconnect has a storage position to fluidically isolate the first body from the second body, and a use position to fluidically connect the first body to the second body to allow the reserve printing composition to flow from the second body to the first body to replenish the printing composition in the first body and to allow air in the first body displaced by the reserve printing composition to flow from the first body to the second body. The interconnect in the storage position has a first orientation to fluidically isolate the first port from the second port, and the interconnect in the use position has a second orientation rotated with respect to the first orientation to fluidically connect the first port to the second port.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: March 19, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Patrick V. Boyd, Mike M. Morrow, David Olsen, Milo A. Undlin, Steven T. Castle
  • Publication number: 20180281429
    Abstract: In one example in accordance with the present disclosure a printer cartridge is described. The printer cartridge includes multiple backpressure chambers in fluid communication with a shared free fluid chamber. The backpressure chambers are to supply a fluid to nozzles of a portion of a fluidic ejection assembly and to provide backpressure to the nozzles of the fluidic ejection assembly during deposition of fluid onto a print medium.
    Type: Application
    Filed: October 28, 2015
    Publication date: October 4, 2018
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Silam J. Choy, Steven T. Castle, Arun K. Agarwal, Blair Kent
  • Publication number: 20180154643
    Abstract: In some examples, a container assembly includes a first body to supply a printing composition, the first body comprising a first port, and the container assembly includes a second body to store a reserve printing composition, the second body comprising a second port. An interconnect has a storage position to fluidically isolate the first body from the second body, and a use position to fluidically connect the first body to the second body to allow the reserve printing composition to flow from the second body to the first body to replenish the printing composition in the first body and to allow air in the first body displaced by the reserve printing composition to flow from the first body to the second body. The interconnect in the storage position has a first orientation to fluidically isolate the first port from the second port, and the interconnect in the use position has a second orientation rotated with respect to the first orientation to fluidically connect the first port to the second port.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 7, 2018
    Inventors: Patrick V. Boyd, Mike M. Morrow, David Olsen, Milo A. Undlin, Steven T. Castle
  • Patent number: 9925782
    Abstract: Examples of a container assembly are disclosed herein. An example of the container assembly includes a first body to supply printing composition and a second body to store reserve printing composition. The example of the container assembly additionally includes an interconnect having a storage position to fluidically isolate the first body from the second body and a use position to fluidically connect the first body to the second body to allow the reserve printing composition to flow from the second body to the first body as needed to replenish the printing composition in the first body and to allow air in the first body displaced by the reserve printing composition to flow from the first body to the second body.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: March 27, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Patrick V. Boyd, Mike M. Morrow, David Olsen, Milo A. Undlin, Steven T. Castle
  • Publication number: 20170057214
    Abstract: Examples of a container assembly are disclosed herein. An example of the container assembly includes a first body to supply printing composition and a second body to store reserve printing composition. The example of the container assembly additionally includes an interconnect having a storage position to fluidically isolate the first body from the second body and a use position to fluidically connect the first body to the second body to allow the reserve printing composition to flow from the second body to the first body as needed to replenish the printing composition in the first body and to allow air in the first body displaced by the reserve printing composition to flow from the first body to the second body.
    Type: Application
    Filed: June 26, 2014
    Publication date: March 2, 2017
    Inventors: Patrick V. BOYD, Mike M. MORROW, David OLSEN, Milo A. UNDLIN, Steven T. CASTLE
  • Publication number: 20130104760
    Abstract: A web press and method of printing is described.
    Type: Application
    Filed: June 24, 2010
    Publication date: May 2, 2013
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Craig L. Malik, Ronald J. Ender, Mike M. Morrow, Paul Mark Haines, Steven T. Castle, Karsten N. Wilson
  • Patent number: 7959245
    Abstract: An ink level sensing device and associated method. The ink level sensing device includes a near infrared illumination source that emits near infrared light, and a container configured to accommodate a supply of ink containing light absorption material. The device further includes a protruding chamber adjacent to the container. The protruding chamber is configured to accommodate a portion of the supply of ink accommodated by the container. The device also includes a sensor that is configured to receive a signal based on an amount of the light that passes through the protruding chamber. The method includes emitting a light from a near infrared illumination source and directing the light toward a protruding chamber of the ink supply. The method further includes sensing an amount of the light that passes through the protruding chamber in the ink supply.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: June 14, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Charles H. McConica, Erick B. Kinas, Jefferson P. Ward, Steven T. Castle, Loren E. Johnson, Jayprakash C. Bhatt
  • Patent number: 7645403
    Abstract: A method for improving color quality in an object created by a solid freeform fabrication system keeps a colorant in an ejected material near a surface of the object.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: January 12, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeffrey Allen Nielsen, Steven T. Castle, David C Collins
  • Patent number: 7611222
    Abstract: A nozzle shield assembly includes a band of material having a tag end, a standing end, a first side, and a second side; wherein the second side is at least partially folded against itself, and the standing end is configured to cover a nozzle of a print cartridge.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: November 3, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Teresa M. Cray, Steven T. Castle, Jefferson P. Ward, Marco Roccatti, Alberto Albertin
  • Patent number: 7497977
    Abstract: A method of producing an object through solid freeform fabrication includes varying a concentration of ejected material applied to form a particular object layer.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: March 3, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeffrey A. Nielsen, Steven T. Castle, David C. Collins, Shawn Hunter
  • Publication number: 20080266565
    Abstract: An ink level sensing device and associated method. The ink level sensing device includes a near infrared illumination source that emits near infrared light, and a container configured to accommodate a supply of ink containing light absorption material. The device further includes a protruding chamber adjacent to the container. The protruding chamber is configured to accommodate a portion of the supply of ink accommodated by the container. The device also includes a sensor that is configured to receive a signal based on an amount of the light that passes through the protruding chamber. The method includes emitting a light from a near infrared illumination source and directing the light toward a protruding chamber of the ink supply. The method further includes sensing an amount of the light that passes through the protruding chamber in the ink supply.
    Type: Application
    Filed: April 27, 2007
    Publication date: October 30, 2008
    Inventors: Charles H. McConica, Erick B. Kinas, Jefferson P. Ward, Steven T. Castle, Loren E. Johnson, Jayprakash C. Bhatt
  • Patent number: 7399047
    Abstract: Embodiments of the invention involve modifying non-volatile data fields in the integral memory components of consumable cartridges (and, in some embodiments, data fields in the utilizing device memory) such that the consumable cartridges become compatible with only a small subset of utilizing devices, thereby substantially reducing their potential value to a thief or unauthorized borrower.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: July 15, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jefferson P Ward, Mark D Lund, Steven T. Castle, Erik D Ness
  • Patent number: 7360879
    Abstract: A pen adapter is configured, in one example, to include a body having an internal surface defining a set of negative datum features configured to interlock with a first set of positive datum features. An external surface of the pen adapter is configured to define a second set of positive datum features.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: April 22, 2008
    Inventors: Steven T. Castle, Jefferson P. Ward, Phillip R. Hays, Eric L. Ahlvin
  • Patent number: 7306758
    Abstract: A solid freeform fabrication system including a three-dimensional fabricator with a plurality of pens and a controller configured to evaluate pen information and to control the pens to reduce a temperature of the pens.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: December 11, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeffrey A Nielsen, Stephen A. Loughran, Steven T Castle, Darrel H. Cummings
  • Patent number: 7229144
    Abstract: A method for aligning multiple nozzle members in a solid free form build unit is disclosed. A geometric test shape having at least one investigational topographic region projecting outward from a central base is formed and analyzed for at least one physical characteristic correlative with nozzle member targeting accuracy. The physical characteristic is at least one of color hue shift, surface pattern irregularity, and dimensional accuracy.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: June 12, 2007
    Inventors: Jeffrey Allen Nielsen, Steven T. Castle, David C Collins
  • Publication number: 20040262803
    Abstract: A method for improving color quality in an object created by a solid freeform fabrication system keeps a colorant in an ejected material near a surface of the object.
    Type: Application
    Filed: June 24, 2003
    Publication date: December 30, 2004
    Inventors: Jeffrey Allen Neilsen, Steven T. Castle, David C. Collins
  • Publication number: 20040178531
    Abstract: A solid freeform fabrication system including a three-dimensional fabricator with a plurality of pens and a controller configured to evaluate pen information and to control the pens to reduce a temperature of the pens.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 16, 2004
    Inventors: Jeffrey Allen Nielsen, Stephen A. Loughran, Steven T. Castle, Darrel H. Cummings
  • Publication number: 20040159978
    Abstract: A method of producing an object through solid freeform fabrication includes varying a concentration of ejected material applied to form a particular object layer.
    Type: Application
    Filed: January 29, 2003
    Publication date: August 19, 2004
    Inventors: Jeffrey A. Nielsen, Steven T. Castle, David C. Collins, Shawn D. Hunter
  • Publication number: 20040085377
    Abstract: A method for aligning multiple nozzle members in a solid free form build unit in which a geometric test shape at least one investigational topographic region projecting outward from a central base is formed and analyzed for at lest one physical characteristic correlative with nozzle member targeting accuracy.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventors: Jeffrey Allen Nielsen, Steven T. Castle, David C. Collins