Patents by Inventor Darrell Herrick

Darrell Herrick 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).

  • Recirculation of ink
    Patent number: 9511598
    Abstract: An apparatus includes an inkjet assembly having inkjet nozzles through each of which ink flows at a nominal flow rate as it is ejected from the nozzle onto a substrate. Ink is held under a nominal negative pressure associated with a characteristic of a meniscus of the ink in the nozzle when ejection of ink from the nozzle is not occurring. The apparatus includes recirculation flow paths, each flow path having a nozzle end at which it opens into one of the nozzles and another location spaced from the nozzle end that is to be subjected to a recirculation pressure lower than the nominal negative pressure so that ink is recirculated from the nozzle through the flow path at a recirculation flow rate.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: December 6, 2016
    Assignee: FUJIFILM Dimatix, Inc.
    Inventors: Robert L Wells, Jr., Bailey Smith, Marlene McDonald, William R. Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert A. Hasenbein
  • Recirculation of Ink
    Publication number: 20160052292
    Abstract: An apparatus includes an inkjet assembly having inkjet nozzles through each of which ink flows at a nominal flow rate as it is ejected from the nozzle onto a substrate. Ink is held under a nominal negative pressure associated with a characteristic of a meniscus of the ink in the nozzle when ejection of ink from the nozzle is not occurring. The apparatus includes recirculation flow paths, each flow path having a nozzle end at which it opens into one of the nozzles and another location spaced from the nozzle end that is to be subjected to a recirculation pressure lower than the nominal negative pressure so that ink is recirculated from the nozzle through the flow path at a recirculation flow rate.
    Type: Application
    Filed: September 28, 2015
    Publication date: February 25, 2016
    Inventors: Robert L. Wells, JR., Bailey Smith, Marlene McDonald, William R. Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert A. Hasenbein
  • Recirculation of ink
    Patent number: 9144993
    Abstract: An apparatus includes an inkjet assembly having inkjet nozzles through each of which ink flows at a nominal flow rate as it is ejected from the nozzle onto a substrate. Ink is held under a nominal negative pressure associated with a characteristic of a meniscus of the ink in the nozzle when ejection of ink from the nozzle is not occurring. The apparatus includes recirculation flow paths, each flow path having a nozzle end at which it opens into one of the nozzles and another location spaced from the nozzle end that is to be subjected to a recirculation pressure lower than the nominal negative pressure so that ink is recirculated from the nozzle through the flow path at a recirculation flow rate.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: September 29, 2015
    Assignee: FUJIFILM Dimatix, Inc.
    Inventors: Robert L. Wells, Jr., Bailey Smith, Marlene McDonald, William Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert Hasenbein
  • Recirculation of ink
    Publication number: 20140240415
    Abstract: An apparatus includes an inkjet assembly having inkjet nozzles through each of which ink flows at a nominal flow rate as it is ejected from the nozzle onto a substrate. Ink is held under a nominal negative pressure associated with a characteristic of a meniscus of the ink in the nozzle when ejection of ink from the nozzle is not occurring. The apparatus includes recirculation flow paths, each flow path having a nozzle end at which it opens into one of the nozzles and another location spaced from the nozzle end that is to be subjected to a recirculation pressure lower than the nominal negative pressure so that ink is recirculated from the nozzle through the flow path at a recirculation flow rate.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Applicant: FUJIFILM Dimatix, Inc.
    Inventors: Robert L. Wells, Bailey Smith, Marlene McDonald, William Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert Hasenbein
  • Recirculation of ink
    Patent number: 8752946
    Abstract: An apparatus includes an inkjet assembly having inkjet nozzles through each of which ink flows at a nominal flow rate as it is ejected from the nozzle onto a substrate. Ink is held under a nominal negative pressure associated with a characteristic of a meniscus of the ink in the nozzle when ejection of ink from the nozzle is not occurring. The apparatus includes recirculation flow paths, each flow path having a nozzle end at which it opens into one of the nozzles and another location spaced from the nozzle end that is to be subjected to a recirculation pressure lower than the nominal negative pressure so that ink is recirculated from the nozzle through the flow path at a recirculation flow rate.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: June 17, 2014
    Assignee: FUJIFILM Dimatix, Inc.
    Inventors: Robert L. Wells, Jr., Bailey Smith, Marlene McDonald, William R. Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert A. Hasenbein
  • Recirculation of ink
    Publication number: 20130229473
    Abstract: An apparatus includes an inkjet assembly having inkjet nozzles through each of which ink flows at a nominal flow rate as it is ejected from the nozzle onto a substrate. Ink is held under a nominal negative pressure associated with a characteristic of a meniscus of the ink in the nozzle when ejection of ink from the nozzle is not occurring. The apparatus includes recirculation flow paths, each flow path having a nozzle end at which it opens into one of the nozzles and another location spaced from the nozzle end that is to be subjected to a recirculation pressure lower than the nominal negative pressure so that ink is recirculated from the nozzle through the flow path at a recirculation flow rate.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 5, 2013
    Applicant: FUJIFILM DIMATIX, INC.
    Inventors: Robert L. Wells, JR., Bailey Smith, Marlene McDonald, William R. Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert A. Hasenbein