Patents by Inventor Marlene McDonald
Marlene McDonald 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: 9511598Abstract: 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: GrantFiled: September 28, 2015Date of Patent: December 6, 2016Assignee: FUJIFILM Dimatix, Inc.Inventors: Robert L Wells, Jr., Bailey Smith, Marlene McDonald, William R. Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert A. Hasenbein
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Publication number: 20160052292Abstract: 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: ApplicationFiled: September 28, 2015Publication date: February 25, 2016Inventors: Robert L. Wells, JR., Bailey Smith, Marlene McDonald, William R. Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert A. Hasenbein
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Patent number: 9144993Abstract: 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: GrantFiled: May 2, 2014Date of Patent: September 29, 2015Assignee: FUJIFILM Dimatix, Inc.Inventors: Robert L. Wells, Jr., Bailey Smith, Marlene McDonald, William Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert Hasenbein
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Publication number: 20140240415Abstract: 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: ApplicationFiled: May 2, 2014Publication date: August 28, 2014Applicant: FUJIFILM Dimatix, Inc.Inventors: Robert L. Wells, Bailey Smith, Marlene McDonald, William Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert Hasenbein
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Patent number: 8752946Abstract: 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: GrantFiled: March 5, 2013Date of Patent: June 17, 2014Assignee: FUJIFILM Dimatix, Inc.Inventors: Robert L. Wells, Jr., Bailey Smith, Marlene McDonald, William R. Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert A. Hasenbein
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Publication number: 20130229473Abstract: 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: ApplicationFiled: March 5, 2013Publication date: September 5, 2013Applicant: FUJIFILM DIMATIX, INC.Inventors: Robert L. Wells, JR., Bailey Smith, Marlene McDonald, William R. Letendre, Matthew Aubrey, John Kelly, Darrell Herrick, Robert A. Hasenbein
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Patent number: 8480196Abstract: Described herein is a method and apparatus for driving a drop ejection device to produce drops having straight trajectories. In one embodiment, a method for driving a drop ejection device having an actuator includes building a drop of a fluid with at least one drive pulse by applying a multi-pulse waveform having the at least one drive pulse and a straightening pulse to the actuator. Next, the method includes causing the drop ejection device to eject the drop with a straight trajectory in response to the pulses of the multi-pulse waveform. The straightening pulse is designed to ensure that the drop is ejected without a drop trajectory error.Type: GrantFiled: October 23, 2009Date of Patent: July 9, 2013Assignee: FujiFilm Dimatix, Inc.Inventors: William R. Letendre, Jr., Xi Wang, Robert Hasenbein, Marlene McDonald, Jaan Laaspere
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Patent number: 8091988Abstract: Among other things, a cavity plate for use in ink jetting includes an outlet end. Elongated lands extend from the outlet end toward an inlet end of the cavity plate. The elongated lands have side walls between top and bottom surfaces of the cavity plate to form elongated cavities. There are structural supports upstream of the ink outlets and between the elongated lands, to support the elongated lands.Type: GrantFiled: May 22, 2008Date of Patent: January 10, 2012Assignee: FUJIFILM Dimatix, Inc.Inventor: Marlene McDonald
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Publication number: 20110096114Abstract: Described herein is a method and apparatus for driving a drop ejection device to produce drops having straight trajectories. In one embodiment, a method for driving a drop ejection device having an actuator includes building a drop of a fluid with at least one drive pulse by applying a multi-pulse waveform having the at least one drive pulse and a straightening pulse to the actuator. Next, the method includes causing the drop ejection device to eject the drop with a straight trajectory in response to the pulses of the multi-pulse waveform. The straightening pulse is designed to ensure that the drop is ejected without a drop trajectory error.Type: ApplicationFiled: October 23, 2009Publication date: April 28, 2011Inventors: William R. Letendre, JR., Xi Wang, Robert Hasenbein, Marlene McDonald, Jaan Laaspere
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Publication number: 20100141709Abstract: A nozzle layer is described that has a semiconductor body having a first surface, a second surface opposing the first surface, and a nozzle formed through the body connecting the first and second surfaces, wherein the nozzle is configured to eject fluid through a nozzle outlet on the second surface, and the outlet having straight sides connected by curved corners.Type: ApplicationFiled: October 26, 2009Publication date: June 10, 2010Inventors: Gregory DeBrabander, Deane A. Gardner, Thomas G. Duby, Marlene McDonald, William R. Letendre, Christoph Menzel
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Publication number: 20090290000Abstract: Among other things, a cavity plate for use in ink jetting includes an outlet end. Elongated lands extend from the outlet end toward an inlet end of the cavity plate. The elongated lands have side walls between top and bottom surfaces of the cavity plate to form elongated cavities. There are structural supports upstream of the ink outlets and between the elongated lands, to support the elongated lands.Type: ApplicationFiled: May 22, 2008Publication date: November 26, 2009Inventor: Marlene McDonald
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Patent number: 5899209Abstract: The hair extension of the present invention includes hair strands affixed to a ring assembly. The ring assembly comprises an inner ring and an outer ring. The inner ring is configured to nest within the outer ring, with distal ends of the hair strands impinged between the inner and outer rings. A plait of a user's hair is inserted through the ring assembly of the hair extension. In one embodiment, the hair extension is attached to the plait with a band, or by sewing the hair extension to the plait. In another embodiment, the ring assembly is modified with a fastening assembly for fastening the hair extension to the plait.Type: GrantFiled: October 19, 1998Date of Patent: May 4, 1999Inventors: David McDonald, Marlene McDonald