Patents by Inventor D Clay Johnson

D Clay Johnson 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: 10350826
    Abstract: A universal object holding mechanism for holding three-dimensional objects for printing thereon uses an array of suction cups mounted at the ends of retractable tubes. The array is pressed into an object which in turn is pressed against a datum surface that represents a print head. Vacuum is applied through the tubes to the suction cups which grip the object. The suction cup walls are hollow and filed with particulates that cause the cup to become rigid when the vacuum is applied. This contributes to keeping the object from moving due to flex in the suction cup when it is being moved past the print head.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: July 16, 2019
    Assignee: Xerox Corporation
    Inventors: Timothy P Foley, Mark A Atwood, Eliud Robles Flores, D Clay Johnson
  • Publication number: 20180281316
    Abstract: A universal object holding mechanism for holding three-dimensional objects for printing thereon uses an array of suction cups mounted at the ends of retractable tubes. The array is pressed into an object which in turn is pressed against a datum surface that represents a print head. Vacuum is applied through the tubes to the suction cups which grip the object. The suction cup walls are hollow and filed with particulates that cause the cup to become rigid when the vacuum is applied. This contributes to keeping the object from moving due to flex in the suction cup when it is being moved past the print head.
    Type: Application
    Filed: April 3, 2017
    Publication date: October 4, 2018
    Inventors: TIMOTHY P. FOLEY, MARK A. ATWOOD, ELIUD ROBLES FLORES, D CLAY JOHNSON
  • Patent number: 8727517
    Abstract: The present disclosure provides apparatus and method for supplying uninterrupted flow of solid-ink pellets to an image-forming device. The apparatus includes a container for retaining solid-ink pellets, and a selectably-inflatable bladder disposed within the container. Further, the apparatus includes a tube communicating the bladder with a pressure supply.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: May 20, 2014
    Assignee: Xerox Corporation
    Inventors: Michael Q Lu, Robert B Anderson, Jr., John R. Uchal, D Clay Johnson, Eliud Robles Flores
  • Patent number: 7457578
    Abstract: There is disclosed a system for cleaning marking material from a surface portion of a movable photoconductive member. The system includes a first rotatable brush, a blade and a second rotatable brush arranged in sequential order along the movable photoconductive member. The first rotatable brush is for removing a first amount of marking material from the surface portion of the movable photoconductive member as the surface portion of the movable photoconductive member moves past said first rotatable electrostatic brush. The blade, in engaging contact with the movable photoconductive member, is for removing a second amount of marking material from the surface portion of the movable photoconductive member. The second rotatable brush, positioned in interference contact with the movable photoconductive member, is for removing substantially all residual marking material that was not removed by the first rotatable brush and the blade.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: November 25, 2008
    Assignee: Xerox Corporation
    Inventors: Douglas A. Lundy, D Clay Johnson, Bruce J. Parks, Michael Quoc Lu
  • Patent number: 7231170
    Abstract: A surface-treating apparatus has a dual-purpose surface-treating blade assembly that includes a blade holder for holding and loading a blade member, and a one-piece blade member having a first edge mounted to the blade holder and a second edge for contacting and treating a surface. The one-piece blade member has a mid-portion for applying a first edge-loading force to lightly contact and remove random spots from a central imaging region of the surface, a first end portion, and a second end portion. The dual-purpose blade assembly also includes a first shim device and a second shim device assembled respectively to the first end portion and to the second end portion of the blade member for stiffening such end portions and increasing a magnitude of each of a second and a third different edge-loading forces at such end portions relative to the first edge-loading force.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: June 12, 2007
    Assignee: Xerox Corporation
    Inventors: Douglas A. Lundy, Anthony L. Paolini, D Clay Johnson, Robert B. Anderson, Jr., Michael Q. Lu