Patents by Inventor Barry P. Mandel

Barry P. Mandel 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: 10335991
    Abstract: A method of operating a multi-nozzle extrusion printhead includes operating with a controller a first actuator to produce relative movement between the printhead and an image receiving surface along a predetermined path for one layer of a three-dimensional printed object. The method further includes first printing an outline of a given layer and then printing the interior of the given layer using a plurality of extrusion nozzles. The method further optionally includes extruding material through a portion of the plurality of nozzles and turning on or off individual nozzles to ensure the swaths printed in the interior conform to the profile of the outline.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: July 2, 2019
    Assignee: Xerox Corporation
    Inventors: Barry P. Mandel, David A. Mantell, Peter J. Nystrom
  • Patent number: 10331109
    Abstract: A three-dimensional object printer uses stereolithography to form a structure and then embed one or more objects in the structure. The printer includes a controller that operates a source of ultraviolet (UV) radiation to cure a portion of a liquid photopolymer at an interface between the liquid photopolymer and the external surface of an embedded object with reference to a meniscus formed between the liquid photopolymer and the external surface of an embedded object. The incorporation of the embedded object speeds formation of the final object and increases the durability of the final object.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 25, 2019
    Assignee: Xerox Corporation
    Inventors: Chu-Heng Liu, David A. Mantell, Barry P. Mandel, Mandakini Kanungo
  • Patent number: 10328637
    Abstract: A three-dimensional object printing system improves the interlayer adhesion of an object. The printing system includes a platform on which a three-dimensional object is built. A material applicator in the printing system expels material to form layers of the object on the platform. The material applicator also includes a heater configured to heat the layer of the object ahead of the material applicator when the material applicator moves in a first direction and a second direction, both directions being parallel to the platform.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: June 25, 2019
    Assignee: Xerox Corporation
    Inventors: Peter J. Nystrom, Barry P. Mandel, David A. Mantell, Paul J. McConville
  • Publication number: 20190111614
    Abstract: A printer is configured with at least two printheads that are separated from one another in a cross-process direction by an integral multiple of printhead widths. This configuration enables parallel swaths of material to be ejected and then movement of the printheads in the cross-process direction by a distance corresponding to one or more integral numbers of the printhead width enables the area between the swaths to be completed and the area outside of the original swaths printed.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 18, 2019
    Inventors: Barry P. Mandel, James L. Giacobbi, Paul J. McConville, David A. Mantell, James J. Spence, James P. Calamita
  • Patent number: 10207452
    Abstract: A printer is configured with at least two printheads that are separated from one another in a cross-process direction by an integral multiple of printhead widths. This configuration enables parallel swaths of material to be ejected and then movement of the printheads in the cross-process direction by a distance corresponding to one or more integral numbers of the printhead width enables the area between the swaths to be completed and the area outside of the original swaths printed.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 19, 2019
    Assignee: Xerox Corporation
    Inventors: Barry P. Mandel, James L. Giacobbi, Paul J. McConville, David A. Mantell, James J. Spence, James P. Calamita
  • Publication number: 20180162063
    Abstract: A method of manufacturing a three-dimensional object comprises: selecting a first ejector in a plurality of ejectors of a three-dimensional object printer with reference to a hardness identifier, the first ejector configured to eject a first material; selecting a second ejector in the plurality of ejectors with reference to a color identifier, the second ejector configured to eject a second material having a hardness that is different than a hardness of the first material; operating the first ejector to eject the first material toward a platen to form an inner portion of the object with the first material; and operating the second ejector to eject the second material toward the platen to form an outer layer of the object with the second material, the outer layer of the object surrounding at least a portion of the inner portion of the object.
    Type: Application
    Filed: December 8, 2016
    Publication date: June 14, 2018
    Inventors: Jeffrey J. Folkins, Barry P. Mandel
  • Publication number: 20180111306
    Abstract: An additive manufacturing system includes a slip clutch coupled to an actuator of a mechanical driver that feeds solid extrusion material into a heater for supplying thermoplastic material to a manifold in an extruder head. A speed of the actuator can be set to enable the actuator to operate at a rotational speed that is slightly greater than the rotational speed of the mechanical mover. This configuration enables the pressure of the thermoplastic material in the manifold of the extruder head to be in a predetermined range no matter how many nozzles are opened in the extruder head.
    Type: Application
    Filed: October 26, 2016
    Publication date: April 26, 2018
    Inventors: Barry P. Mandel, Peter J. Nystrom, Christopher G. Lynn, Robert A. Clark, David A. Mantell
  • Publication number: 20170368741
    Abstract: A printer is configured with at least two printheads that are separated from one another in a cross-process direction by an integral multiple of printhead widths. This configuration enables parallel swaths of material to be ejected and then movement of the printheads in the cross-process direction by a distance corresponding to one or more integral numbers of the printhead width enables the area between the swaths to be completed and the area outside of the original swaths printed.
    Type: Application
    Filed: June 28, 2016
    Publication date: December 28, 2017
    Inventors: Barry P. Mandel, James L. Giacobbi, Paul J. McConville, David A. Mantell, James J. Spence, James P. Calamita
  • Publication number: 20170334137
    Abstract: A three-dimensional object printing system improves the interlayer adhesion of an object. The printing system includes a platform on which a three-dimensional object is built. A material applicator in the printing system expels material to form layers of the object on the platform. The material applicator also includes a heater configured to heat the layer of the object ahead of the material applicator when the material applicator moves in a first direction and a second direction, both directions being parallel to the platform.
    Type: Application
    Filed: May 17, 2016
    Publication date: November 23, 2017
    Inventors: Peter J. Nystrom, Barry P. Mandel, David A. Mantell, Paul J. McConville
  • Publication number: 20170320270
    Abstract: An additive manufacturing system operates at least one ejector and an extruder to form three-dimensional objects with photopolymer material and thermoplastic material. The system operates to deposit the two materials in a layer-by-layer manner. The photopolymer material provides high resolution finishes on the objects and the thermoplastic material enables strong and stable formation of internal portions of the objects.
    Type: Application
    Filed: May 3, 2016
    Publication date: November 9, 2017
    Inventors: Barry P. Mandel, Paul J. McConville, Peter J. Nystrom, Jeffrey J. Folkins, David A. Mantell
  • Patent number: 9757900
    Abstract: A pin actuated printhead includes an orifice through which a material is ejected, a chamber to hold the material to be ejected, a channel connecting the chamber to the orifice, and an actuated pin, to enter the orifice and to eject the material from the orifice. The printhead is configured to eject a material with a viscosity of 10,000 cP or more at an elevated temperature.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: September 12, 2017
    Assignee: XEROX CORPORATION
    Inventors: Peter J. Nystrom, Barry P. Mandel, Andrew W. Hays, Jun Ma, David Allen Mantell, Gary D. Redding, Peter M. Gulvin
  • Publication number: 20170157843
    Abstract: A 3D printer including a pin actuated printhead having an orifice through which a material is ejected, a material chamber to hold the material to be ejected, a channel connecting the material chamber to the orifice, a pin chamber, and an actuated pin within the pin chamber, wherein the actuated pin extends through the pin chamber to eject the material from the orifice. The printhead is configured to eject a material with a viscosity of 10,000 cP or more at an elevated temperature. The 3D printer further includes a material delivery system having a filament driver and a filament heater.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 8, 2017
    Inventors: Peter J. NYSTROM, Barry P. MANDEL, David A. MANTELL
  • Publication number: 20170157831
    Abstract: A method of operating a multi-nozzle extrusion printhead includes operating with a controller a first actuator to produce relative movement between the printhead and an image receiving surface along a predetermined path for one layer of a three-dimensional printed object. The method further includes first printing an outline of a given layer and then printing the interior of the given layer using a plurality of extrusion nozzles. The method further optionally includes extruding material through a portion of the plurality of nozzles and turning on or off individual nozzles to ensure the swaths printed in the interior conform to the profile of the outline.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 8, 2017
    Inventors: Barry P. Mandel, David A. Mantell, Peter J. Nystrom
  • Publication number: 20170157844
    Abstract: A multi-nozzle extrusion printhead includes a chamber with an inlet to receive an extrusion material and a plurality of outlets fluidly coupled to the chamber. The printhead also includes a plurality of valves that control flow of extrusion material through the fluid outlets to nozzles in the printhead. Each valve includes a member and an electromechanical actuator configured to move the member to a first position to block a flow of the extrusion material through one of the fluid outlets and nozzles and to a second position to enable the flow of the extrusion material through the fluid outlet and nozzles.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 8, 2017
    Inventors: Barry P. Mandel, David A. Mantell, Peter J. Nystrom, Andrew W. Hays, Mark A. Cellura, Jun Ma, Gary D. Redding
  • Publication number: 20170157828
    Abstract: A three-dimensional object printer includes a multi-nozzle extruder, at least one extrusion material supply, and a dispenser that provides extrusion material from the extrusion material supply to each of a plurality of channels, each channel supplying extrusion material to at least one nozzle in the multi nozzle extruder. The dispenser includes an inlet to receive extrusion material from at least one extrusion material supply, an outlet configured to direct the extrusion material to a channel in the plurality of channels, and an actuator configured to move the outlet into alignment with each channel in the plurality of channels.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 8, 2017
    Inventors: Barry P. Mandel, David A. Mantell, Peter J. Nystrom
  • Publication number: 20170144376
    Abstract: A three-dimensional object printer uses stereolithography to form a structure and then embed one or more objects in the structure. The printer includes a controller that operates a source of ultraviolet (UV) radiation to cure a portion of a liquid photopolymer at an interface between the liquid photopolymer and the external surface of an embedded object with reference to a meniscus formed between the liquid photopolymer and the external surface of an embedded object. The incorporation of the embedded object speeds formation of the final object and increases the durability of the final object.
    Type: Application
    Filed: November 19, 2015
    Publication date: May 25, 2017
    Inventors: Chu-Heng Liu, David A. Mantell, Barry P. Mandel, Mandakini Kanungo
  • Publication number: 20170129179
    Abstract: A three-dimensional object printer includes a controller that operates at least one ejector to place a layer of photopolymer material on a substrate. The controller is configured to cure the ejected photopolymer layer partially and position fiber on the cured layer before continuing to eject photopolymer material onto the fibers. The fibers can be loose or organized into a mesh. The pieces of mesh position on a cured layer can be pre-cut or a cutting device can be operated to cut pieces of mesh having a shape that corresponds to the shape of the layer of photopolymer material. The fibers reinforce the layers of photopolymer material and add strength and durability to the overall part being formed with the photopolymer material.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Inventors: Barry P. Mandel, David A. Mantell, Chu-Heng Liu, Mandakini Kanungo
  • Publication number: 20160339635
    Abstract: A pin actuated printhead includes an orifice through which a material is ejected, a chamber to hold the material to be ejected, a channel connecting the chamber to the orifice, and an actuated pin, to enter the orifice and to eject the material from the orifice. The printhead is configured to eject a material with a viscosity of 10,000 cP or more at an elevated temperature.
    Type: Application
    Filed: May 20, 2015
    Publication date: November 24, 2016
    Inventors: Peter J. Nystrom, Barry P. Mandel, Andrew W. Hays, Jun Ma, David Allen Mantell, Gary D. Redding, Peter M. Gulvin
  • Patent number: 9433386
    Abstract: What is disclosed is a method for monitoring a subject for cardiac arrhythmia such as atrial fibrillation using an apparatus that can be comfortably worn by the subject around an area of exposed skin where a photoplethysmographic (PPG) signal can be registered. In one embodiment, the apparatus is a reflective or transmissive wrist-worn device with emitter/detector pairs fixed to an inner side of a band with at least one illuminator emitting source light at a specified wavelength band. The illuminator is paired to a respective photodetector comprising one or more sensors that are sensitive to a wavelength band of its paired illuminator. The photodetector measures intensity of sensed light emitted by a respective illuminator. The signal obtained by the sensors comprises a continuous PPG signal. The continuous PPG signal analyzed for peak-to-peak pulse points from which the existence of cardiac arrhythmia such as atrial fibrillation event can be determined.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: September 6, 2016
    Assignee: Xerox Corporation
    Inventors: Lalit Keshav Mestha, Survi Kyal, Barry P. Mandel, Peter Johan Nystrom
  • Patent number: 9315021
    Abstract: A printhead including a plurality of actuators, wherein each actuator of the plurality of actuators includes a plurality of drive electrodes, a plurality of diaphragms, and a single nozzle. Each drive electrode is uniquely paired with one of the diaphragms. In an embodiment, the printhead may be configured so that all drive electrodes for a single actuator always activate simultaneously to eject ink from the single nozzle. In another embodiment, the printhead may be configured so that each drive electrode of the plurality of drive electrodes for a single actuator are individually addressable and may be fired independently of the other drive electrodes of the single actuator.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: April 19, 2016
    Assignee: Xerox Corporation
    Inventors: Peter J. Nystrom, Barry P. Mandel, Peter M. Gulvin