Patents by Inventor Shawn D Hunter

Shawn D Hunter 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).

  • PRINTHEAD CALIBRATION
    Publication number: 20220410564
    Abstract: According to an example, a calibration method may calculate a printhead distribution. The method may comprise printing a calibration pattern, detecting darkness values from the calibration pattern, assigning a darkness level to a plurality of printheads based on the darkness values, and calculating through a processor the printhead distribution that minimizes a variation of the darkness levels across the plurality of printheads.
    Type: Application
    Filed: November 13, 2019
    Publication date: December 29, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Angel Martinez Barambio, Shawn D. Hunter, Jordi Falces Valls
  • Closed-loop system and a method for separating materials of differing melting points
    Patent number: 7833005
    Abstract: A closed loop system for separating materials of differing melting points includes an ultrasonic bath including a solution configured to supply thermal energy and cavitation to the materials of differing melting points, a solution reservoir configured to adjust levels of the solution in the ultrasonic bath, and a filter configured to remove particles of one of the materials of differing melting points from the solution.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: November 16, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shawn D Hunter, Isaac Farr
  • Methods and systems for producing an object through solid freeform fabrication
    Patent number: 7435072
    Abstract: A method of producing an object through solid freeform fabrication, the method including fabricating a support structure about at least a portion of the object by applying a binder or focused energy to a build material.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: October 14, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David C Collins, Shawn D Hunter, Jeffrey Allen Nielsen
  • Fabricating a three-dimensional object
    Patent number: 7389154
    Abstract: A three-dimensional object is fabricated from powder. A powder layer is deposited. The powder layer is selectively wetted to hinder movement of the powder. A binder is applied to selected areas of the powder layer to harden the areas of the powder layer. The steps are repeated until the three-dimensional object is fabricated.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: June 17, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shawn D Hunter, Vladek P Kasperchik, Jeffrey Allen Nielsen, David C Collins, Tony Cruz-Uribe
  • Scheduling system
    Patent number: 6983188
    Abstract: A scheduling system or method with an interface that can provide a queue-list view and a calendar view. In the scheduling of a particular job on a particular machine, characteristics relating to the particular job (“job characteristics”) and characteristics relating to the particular machine (“machine characteristics”) can be taken into consideration by the scheduling system.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: January 3, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stephen A. Loughran, David C Collins, Shawn D Hunter
  • Methods and systems for producting an object through solid freeform fabrication
    Publication number: 20040239009
    Abstract: A method of producing an object through solid freeform fabrication, the method including fabricating a support structure about at least a portion of the object by applying a binder or focused energy to a build material.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 2, 2004
    Inventors: David C. Collins, Shawn D. Hunter, Jeffrey Allen Nielsen
  • Methods and systems for producing an object through solid freeform fabrication using immiscible fluids
    Publication number: 20040169699
    Abstract: A method of producing an object through solid freeform fabrication includes using two immiscible fluids to create a release envelope around the object.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Shawn D. Hunter, Vladek P. Kasperchik
  • Methods and systems for producing an object through solid freeform fabrication by varying a concentration of ejected material applied to an object layer
    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