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).
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Patent number: 11364721Abstract: In one example in accordance with the present disclosure, at least one print liquid supply interconnected is described. Each print liquid supply interconnect includes a housing movable relative to a printer and tethered via a feed hose to the printer. The housing includes at least one needle to be inserted in a print liquid supply to allow print liquid to move between the print liquid supply and an ejection device and two keyed slots disposed on either side of a first needle to gate insertion to a print liquid supply with protrusions that match the two keyed slots. The housing also includes a guide feature adjacent the first needle extending between a first keyed slot and the first needle and an electrical interface to establish a data transmission path between the print liquid supply and the ejection device, the electrical interface disposed between the first needle and a second keyed slot.Type: GrantFiled: July 13, 2018Date of Patent: June 21, 2022Inventors: Judson M. Leiser, Miquel Boleda Busquets, Steven T. Castle, David Olsen
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Patent number: 11260670Abstract: A fluid reservoir (100) includes a circuit (105) extending in the fluid reservoir to be at least partially in contact with fluid (120) inside the fluid reservoir during use, at least a first impedance sensor (110) and second impedance sensor (115) coupled to the circuit, wherein the at least first and second impedance sensors are to output impedance values indicative of a degree of particle separation in the fluid.Type: GrantFiled: December 11, 2017Date of Patent: March 1, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Steven T Castle, Daryl E Anderson, James Michael Gardner, Eric Martin
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Publication number: 20210245520Abstract: In one example in accordance with the present disclosure, at least one print liquid supply interconnect is described. Each interconnect includes at least one needle to be inserted into a print liquid supply to allow print liquid to move between the print liquid supply and an ejection device. Each interconnect also includes two keyed slots disposed on either side of a first needle to gate insertion of print liquid supplies to a print liquid supply with protrusions that match the two keyed slots. A guide feature of each interconnect adjacent the first needle and extends between a first keyed slot and the first needle. An electrical interface of each interconnect establishes a data transmission path between the print liquid supply and the ejection device, the electrical interface disposed between the first needle and a second keyed slot.Type: ApplicationFiled: July 13, 2018Publication date: August 12, 2021Inventors: Judson M Leiser, David Olsen, Miqulel BOLEDA BUSQUETS, Steven T Castle
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Publication number: 20200298584Abstract: A fluid reservoir (100) includes a circuit (105) extending in the fluid reservoir to be at least partially in contact with fluid (120) inside the fluid reservoir during use, at least a first impedance sensor (110) and second impedance sensor (115) coupled to the circuit, wherein the at least first and second impedance sensors are to output impedance values indicative of a degree of particle separation in the fluid.Type: ApplicationFiled: December 11, 2017Publication date: September 24, 2020Applicant: Hewlett-Packard Development Company, L.P.Inventors: Steven T Castle, Daryl E Anderson, James Michael Gardner, Eric Martin
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Patent number: 10589530Abstract: 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: GrantFiled: October 28, 2015Date of Patent: March 17, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Silam J. Choy, Steven T. Castle, Arun K. Agarwal, Blair Kent
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Patent number: 10232629Abstract: 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: GrantFiled: February 6, 2018Date of Patent: March 19, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Patrick V. Boyd, Mike M. Morrow, David Olsen, Milo A. Undlin, Steven T. Castle
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Publication number: 20180281429Abstract: 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: ApplicationFiled: October 28, 2015Publication date: October 4, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Silam J. Choy, Steven T. Castle, Arun K. Agarwal, Blair Kent
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Publication number: 20180154643Abstract: 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: ApplicationFiled: February 6, 2018Publication date: June 7, 2018Inventors: Patrick V. Boyd, Mike M. Morrow, David Olsen, Milo A. Undlin, Steven T. Castle
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Patent number: 9925782Abstract: 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: GrantFiled: June 26, 2014Date of Patent: March 27, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Patrick V. Boyd, Mike M. Morrow, David Olsen, Milo A. Undlin, Steven T. Castle
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Publication number: 20130104760Abstract: A web press and method of printing is described.Type: ApplicationFiled: June 24, 2010Publication date: May 2, 2013Applicant: 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
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Patent number: 7959245Abstract: 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: GrantFiled: April 27, 2007Date of Patent: June 14, 2011Assignee: 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
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Patent number: 7645403Abstract: 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: GrantFiled: June 24, 2003Date of Patent: January 12, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jeffrey Allen Nielsen, Steven T. Castle, David C Collins
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Patent number: 7611222Abstract: 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: GrantFiled: October 6, 2004Date of Patent: November 3, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Teresa M. Cray, Steven T. Castle, Jefferson P. Ward, Marco Roccatti, Alberto Albertin
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Patent number: 7497977Abstract: 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: GrantFiled: January 29, 2003Date of Patent: March 3, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jeffrey A. Nielsen, Steven T. Castle, David C. Collins, Shawn Hunter
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Publication number: 20080266565Abstract: 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: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Inventors: Charles H. McConica, Erick B. Kinas, Jefferson P. Ward, Steven T. Castle, Loren E. Johnson, Jayprakash C. Bhatt
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Patent number: 7399047Abstract: 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: GrantFiled: April 29, 2004Date of Patent: July 15, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jefferson P Ward, Mark D Lund, Steven T. Castle, Erik D Ness
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Patent number: 7360879Abstract: 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: GrantFiled: July 29, 2004Date of Patent: April 22, 2008Inventors: Steven T. Castle, Jefferson P. Ward, Phillip R. Hays, Eric L. Ahlvin
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Patent number: 7306758Abstract: 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: GrantFiled: March 13, 2003Date of Patent: December 11, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jeffrey A Nielsen, Stephen A. Loughran, Steven T Castle, Darrel H. Cummings
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Patent number: 7229144Abstract: 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: GrantFiled: October 31, 2002Date of Patent: June 12, 2007Inventors: Jeffrey Allen Nielsen, Steven T. Castle, David C Collins
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Publication number: 20040262803Abstract: 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: ApplicationFiled: June 24, 2003Publication date: December 30, 2004Inventors: Jeffrey Allen Neilsen, Steven T. Castle, David C. Collins