Patents by Inventor John C. Barnwell, III
John C. Barnwell, III 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: 10994371Abstract: A system and method depositing metal to form a three-dimensional (3D) part on a substrate. A wire is moved relative to a location on the substrate while a laser heats a proximal end of the wire at the location using a laser beam. The laser causes the wire and substrate to reach a melting point of the wire to fuse the wire at the location on the substrate. The wire can be preheated by passing a current through the wire.Type: GrantFiled: February 24, 2016Date of Patent: May 4, 2021Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: William S Yerazunis, John C Barnwell, III, William T Vetterling
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Patent number: 10350874Abstract: A 5D printer, which additively manufactures an object, includes an extruder that can move linearly along three orthogonal axes and rotationally around at least one of the axes with respect to the object while depositing a material. A gantry is movable along X, Y and Z axes, and a trunnion table movable about A and B axes is mounted on the gantry. A platen is mounted on the trunnion table, and the extruder deposits the material on the platen while moving the gantry and trunnion table. A model of the object is analyzed to produce a stress tensor for the object, and the depositing is according to the stress tensor.Type: GrantFiled: October 6, 2016Date of Patent: July 16, 2019Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: William Yerazunis, John C Barnwell, III, Joseph Katz, Dirk Brinkman
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Publication number: 20170239753Abstract: A system and method depositing metal to form a three-dimensional (3D) part on a substrate. A wire is moved relative to a location on the substrate while a laser heats a proximal end of the wire at the location using a laser beam. The laser causes the wire and substrate to reach a melting point of the wire to fuse the wire at the location on the substrate. The wire can be preheated by passing a current through the wire.Type: ApplicationFiled: February 24, 2016Publication date: August 24, 2017Applicant: Mitsubishi Electric Research Laboratories, Inc.Inventors: William S. Yerazunis, John C. Barnwell, III, William T. Vetterling
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Patent number: 9718146Abstract: A method calibrates a laser processing machine by commanding a scan head to direct a laser beam to a desired position, then senses an actual position of the laser beam directly using a position sensitive detector (PSD) after the scan head is positioned. A relative position between the scan head and PSD is altered using one or more linear actuators. A position feedback loop is closed around the linear actuators so that the relative position of the laser beam on the PSD is reduced to zero. The actual position of the laser spot is then measured indirectly by encoders attached to linear axes of the laser processing machine. The actual position is stored in a memory. An error is determined as a difference between the desired position and the actual position. Compensation coefficients are determined from the error and stored for later use during operation of the laser processing machine.Type: GrantFiled: June 3, 2013Date of Patent: August 1, 2017Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Abraham M Goldsmith, Scott A Bortoff, Vijay Shilpiekandula, Alan Sullivan, William S Yerazunis, John C Barnwell, III
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Publication number: 20170021573Abstract: A 5D printer, which additively manufactures an object, includes an extruder that can move linearly along three orthogonal axes and rotationally around at least one of the axes with respect to the object while depositing a material. A gantry is movable along X, Y and Z axes, and a trunnion table movable about A and B axes is mounted on the gantry. A platen is mounted on the trunnion table, and the extruder deposits the material on the platen while moving the gantry and trunnion table. A model of the object is analyzed to produce a stress tensor for the object, and the depositing is according to the stress tensor.Type: ApplicationFiled: October 6, 2016Publication date: January 26, 2017Applicant: Mitsubishi Electric Research Laboratories, Inc.Inventors: William Yerazunis, John C. Barnwell, III, Joseph Katz, Dirk Brinkman
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Patent number: 9481131Abstract: A 5D printer, which additively manufactures an object, includes an extruder that can move linearly along three orthogonal axes and rotationally around at least one of the axes with respect to the object while depositing a material. A gantry is movable along X, Y and Z axes, and a trunnion table movable about A and B axes is mounted on the gantry. A platen is mounted on the trunnion table, and the extruder deposits the material on the platen while moving the gantry and trunnion table. A model of the object is analyzed to produce a stress tensor for the object, and the depositing is according to the stress tensor.Type: GrantFiled: July 18, 2013Date of Patent: November 1, 2016Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: William S Yerazunis, John C Barnwell, III, Joseph Katz, Dirk Brinkman
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Publication number: 20160250808Abstract: A method prints a three dimensional (3D) object using a 3D printer depositing a stack of layers of print material. Each layer is bonded to at least a portion of another layer in the stack forming the object. The method provides a support layer of material, covers at least a portion of the support layer with a non-sticking material having a property selected to reduce bonding of the print material to the non-sticking material and to the support layer and deposes a layer of the print material on the support layer including the portion of the support layer covered with the non-sticking material.Type: ApplicationFiled: February 26, 2015Publication date: September 1, 2016Inventors: John C. Barnwell, III, William S. Yerazunis
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Patent number: 8978831Abstract: An elevator including a car is arranged in a shaft. A set of compensator cables are attached to a bottom of the car and engaged with a compensator drum. A set of hoist cables are attached to a top of the car and engaged with a hoist drum to move the car vertically in the shaft, wherein the set of compensator cables and the set of hoist cables are configured to only move the car vertically.Type: GrantFiled: November 17, 2011Date of Patent: March 17, 2015Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Vijay Shilpiekandula, William Yerazunis, John C. Barnwell, III, Scott A. Bortoff, Joseph Katz
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Publication number: 20150021832Abstract: A 5D printer, which additively manufactures an object, includes an extruder that can move linearly along three orthogonal axes and rotationally around at least one of the axes with respect to the object while depositing a material. A gantry is movable along X, Y and Z axes, and a trunnion table movable about A and B axes is mounted on the gantry. A platen is mounted on the trunnion table, and the extruder deposits the material on the platen while moving the gantry and trunnion table. A model of the object is analyzed to produce a stress tensor for the object, and the depositing is according, to the stress tensor.Type: ApplicationFiled: July 18, 2013Publication date: January 22, 2015Inventors: William S. Yerazunis, John C. Barnwell, III, Joseph Katz, Dirk Brinkman
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Publication number: 20150021830Abstract: A 5D printer, which additively manufactures an object, includes an extruder that can move linearly along three orthogonal axes and rotationally around at least one of the axes with respect to the object while depositing a material. A gantry is movable along X, Y and Z axes, and a trunnion table movable about A and B axes is mounted on the gantry. A platen is mounted on the trunnion table, and the extruder deposits the material on the platen while moving the gantry and trunnion table. A model of the object is analyzed to produce a stress tensor for the object, and the depositing is according to the stress tensor.Type: ApplicationFiled: July 18, 2013Publication date: January 22, 2015Applicant: Mitsubishi Electric Research Laboratories, Inc.Inventors: William S. Yerazunis, John C. Barnwell, III, Joseph Katz, Dirk Brinkman
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Patent number: 8921734Abstract: A laser cutting machine includes a platform and a motion system. The motion system includes a first prismatic joint facilitating a first motion of the platform along a first direction and a second prismatic joint facilitating a second motion of the platform along a second direction. A galvano arranged on the platform, such that a motion of the platform causes a motion of the galvano, the galvano including a first mirror, wherein a third motion of the first mirror positions the laser beam along a third direction, and a second mirror, wherein a fourth motion of the second mirror positions the laser beam along a fourth direction. A control module controls concurrently the motion system and the galvano, such that a position of the laser beam on the workpiece is a vector sum of the first motion, the second motion, the third motion, and the fourth motion.Type: GrantFiled: November 10, 2011Date of Patent: December 30, 2014Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: William S. Yerazunis, John C. Barnwell, III, Scott A. Bortoff, Vijay Shilpiekandula, Abraham Goldsmith
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Publication number: 20140355005Abstract: A method calibrates a laser processing machine by commanding a scan head to direct a laser beam to a desired position, then senses an actual position of the laser beam directly using a position sensitive detector (PSD) after the scan head is positioned. A relative position between the scan head and PSD is altered using one or more linear actuators. A position feedback loop is closed around the linear actuators so that the relative position of the laser beam on the PSD is reduced to zero. The actual position of the laser spot is then measured indirectly by encoders attached to linear axes of the laser processing machine. The actual position is stored in a memory. An error is determined as a difference between the desired position and the actual position. Compensation coefficients are determined from the error and stored for later use during operation of the laser processing machine.Type: ApplicationFiled: June 3, 2013Publication date: December 4, 2014Inventors: Abraham M. Goldsmith, Scott A. Bortoff, Vijay Shilpiekandula, Alan Sullivan, William S. Yerazunis, John C. Barnwell, III
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Patent number: 8878772Abstract: A display system includes a display device having multiple possible poses, including a neutral pose. A physical constraint maintains the display device in the neutral pose absent an application of an external force. A sensor measures a magnitude and direction of a displacement of the display device to a displaced pose due to the application of the external force. Then, the rendering engine renders an image on the display device according to the magnitude and direction of the displacement even while the display device remains constant in the displaced pose.Type: GrantFiled: August 21, 2009Date of Patent: November 4, 2014Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Yuri Ivanov, John C. Barnwell, III, James Barabas
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Publication number: 20130126275Abstract: An elevator including a car is arranged in a shaft. A set of compensator cables are attached to a bottom of the car and engaged with a compensator drum. A set of hoist cables are attached to a top of the car and engaged with a hoist drum to move the car vertically in the shaft, wherein the set of compensator cables and the set of hoist cables are configured to only move the car vertically.Type: ApplicationFiled: November 17, 2011Publication date: May 23, 2013Inventors: Vijay Shilpiekandula, William Yerazunis, John C. Barnwell, III, Scott A. Bortoff, Joseph Katz
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Publication number: 20130119027Abstract: A laser cutting machine includes a platform and a motion system. The motion system includes a first prismatic joint facilitating a first motion of the platform along a first direction and a second prismatic joint facilitating a second motion of the platform along a second direction. A galvano arranged on the platform, such that a motion of the platform causes a motion of the galvano, the galvano including a first mirror, wherein a third motion of the first mirror positions the laser beam along a third direction, and a second minor, wherein a fourth motion of the second mirror positions the laser beam along a fourth direction. A control module controls concurrently the motion system and the galvano, such that a position of the laser beam on the workpiece is a vector sum of the first motion, the second motion, the third motion, and the fourth motion.Type: ApplicationFiled: November 10, 2011Publication date: May 16, 2013Inventors: William S. Yerazunis, John C. Barnwell, III, Scott A. Bortoff, Vijay Shilpiekandula, Abraham Goldsmith
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Patent number: 7934869Abstract: Embodiment of the invention describes a system and a method for positioning an object from a first pose to a second pose. The method displays concurrently a first image and a second image on a display device, wherein the first image and the second image represent respectively the first pose and the second pose of the object. The method updates, in response to a change in a pose of the display device, the second image such that an alignment of the first image and the second image on the display device depends on the change in the pose of the display device, and positions the object from the first pose to the second pose based on the change in the pose of the display device.Type: GrantFiled: June 30, 2009Date of Patent: May 3, 2011Assignee: Mitsubishi Electric Research Labs, Inc.Inventors: Yuri A. Ivanov, John C. Barnwell, III, Andrea E. G. Bradshaw
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Publication number: 20110043442Abstract: A display system includes a display device having multiple possible poses, including a neutral pose. A physical constraint maintains the display device in the neutral pose absent an application of an external force. A sensor measures a magnitude and direction of a displacement of the display device to a displaced pose due to the application of the external force. Then, the rendering engine renders an image on the display device according to the magnitude and direction of the displacement even while the display device remains constant in the displaced pose.Type: ApplicationFiled: August 21, 2009Publication date: February 24, 2011Inventors: Yuri Ivanov, John C. Barnwell, III, James Barabas
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Publication number: 20100329432Abstract: Embodiment of the invention describes a system and a method for positioning an object from a first pose to a second pose. The method displays concurrently a first image and a second image on a display device, wherein the first image and the second image represent respectively the first pose and the second pose of the object. The method updates, in response to a change in a pose of the display device, the second image such that an alignment of the first image and the second image on the display device depends on the change in the pose of the display device, and positions the object from the first pose to the second pose based on the change in the pose of the display device.Type: ApplicationFiled: June 30, 2009Publication date: December 30, 2010Inventors: Yuri A. Ivanov, John C. Barnwell, III, Andrea E. G. Bradshaw
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Publication number: 20080291156Abstract: A user interface is configured to detect an attempt to touch a virtual button. The interface includes a first concave mirror facing a second concave mirror. The second concave mirror includes an aperture. A physical control button is arranged proximate to the first mirror and aligned such that an image of the control button in a form of a virtual button appears at the aperture. An attempt to touch the virtual button is detected, and feedback is generated at the virtual button in response to detecting the attempt to touch the virtual button by a user.Type: ApplicationFiled: May 23, 2007Publication date: November 27, 2008Inventors: Paul H. Dietz, Darren Leigh, William S. Yerazunis, Jonathan Westhues, John C. Barnwell, III