Patents Examined by Tiffany Yu Huang
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Patent number: 11931958Abstract: A nozzle for additive manufacturing having a body having a thermally conductive material, a front side opposite a back side, a first side opposite a second side, the first side and the second side connected to and between the front side and the back side. The nozzle further has a top end opposite an extrusion end, and the body tapers at the extrusion end to a nozzle opening. A first conduit extends through the body from an opening in the top end to the nozzle opening in the extrusion end. A heater conduit, adjacent to the first conduit, extends from a heater opening in the top end and into the body towards the extrusion end and a sensor conduit, adjacent to the first conduit, extends from a sensor opening in the top end and into body towards the extrusion end.Type: GrantFiled: June 29, 2022Date of Patent: March 19, 2024Assignee: PRISAM LLCInventors: Pritam Poddar, Adam Foster, Xavier Tarr, Justin Kon
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Patent number: 11911969Abstract: A 3D printer capable of adjusting a light transmission rate includes: a plate on which a forming material is disposed; a light source disposed above the plate and emitting light for curing the forming material; a course setting unit setting a processing course of the light emitted to the forming material; a beam shifting speed determination unit determining a beam shifting speed in each processing zone of the processing course set by the course setting unit; and a light transmission rate adjustment unit disposed between the forming material and the light source and adjusting a transmission rate of the light emitted to the forming material based on the beam shifting speed in each processing zone of the processing course.Type: GrantFiled: November 6, 2020Date of Patent: February 27, 2024Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITYInventor: Daekeun Kim
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Patent number: 11865770Abstract: Method for calibrating an irradiation device (2) for additively manufacturing three-dimensional objects which irradiation device (2) comprises at least two irradiation units (3, 4), comprising: guiding one of the at least two energy beams (6, 10) via the corresponding irradiation unit (3, 4) to a determination region (15), preferably a part of a build plane (8), for generating a calibration pattern (18, 19); imaging at least one part of the determination region (15) to an on-axis determination unit (12, 14) of the at least one other irradiation unit (3, 4); determining a position of the calibration pattern (18, 19) in the determination region (15) on basis of the image of the at least one part of the determination region (15); generating calibration information relating to a calibration status of at least one part of the irradiation device (2) based on the position of the calibration pattern (18, 19).Type: GrantFiled: March 4, 2019Date of Patent: January 9, 2024Assignee: CONCEPT LASER GMBHInventors: Tim Klaußner, Christian Dicken, Bertram Gärber
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Patent number: 11760028Abstract: A material drop ejecting three-dimensional (3D) object printer identifies a time lag error corresponding to a time lag in the response of printer components to component commands. The identified time lag error is provided to a slicer program that uses the identified time lag error to compensate for the time lag in the response of the printer components.Type: GrantFiled: January 30, 2021Date of Patent: September 19, 2023Assignee: Xerox CorporationInventors: Rachel L. Tanchak, Erwin Ruiz, Brendan McNamara, Piotr Sokolowski, Jack G. Elliot, Ka H. Fung, Derek A. Bryl, Douglas E. Proctor, Christopher T. Chungbin, Peter M. Gulvin
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Patent number: 11760018Abstract: A three-dimensional (3D) object printer operates a radiation source to direct radiation emitted by the radiation source through a porous substrate at a first intensity insufficient to cure a material contained in the porous substrate and at a second intensity sufficient to cure the material after the emitted radiation has passed through the porous substrate. The material is applied to the porous substrate by one or more wipers.Type: GrantFiled: April 29, 2021Date of Patent: September 19, 2023Assignee: Xerox CorporationInventors: David A. Mantell, Paul J. McConville, Dinesh Krishna Kumar Jayabal, Viktor Sukhotskiy
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Patent number: 11712841Abstract: An additive manufacturing method including repeatedly applying a layer of building material on a previously selectively solidified building material layer and scanning the layer at positions corresponding to the cross-section of the object in this layer, where the laser radiation is generated by a laser light source and is directed onto the building material layer via optical components. An optics compartment is encased by an optics compartment housing and accommodates the optical components. A defined gas atmosphere is maintained inside of the optics compartment, wherein the relative humidity of the defined gas atmosphere is kept below 3%.Type: GrantFiled: September 22, 2020Date of Patent: August 1, 2023Assignee: EOS GmbH Electro Optical SystemsInventors: Hans Perret, Stefan Paternoster
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Patent number: 11597145Abstract: Methods for additive manufacturing are provided. In embodiments, such a method comprises illuminating a photothermal base with light, the photothermal base comprising a photothermal material and mounted in an additive manufacturing system to form a first interface between a surface of the photothermal base and a curable composition comprising thermally curable components, wherein the light induces light-to-energy conversion in the photothermal base to generate heat at the first interface, thereby inducing curing of the thermally curable components to form a first cured region. Additive manufacturing systems and photothermal bases are also provided.Type: GrantFiled: June 23, 2020Date of Patent: March 7, 2023Assignee: Wisconsin Alumni Research FoundationInventors: Andrew Jackson Boydston, Chang-Uk Lee
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Patent number: 11541599Abstract: A device and method of forming a three-dimensional component includes filling a reservoir (26) with a volume of curable resin (30), the resin configured to undergo a first reaction to form a first product when exposed to light (42) of a first wavelength and to undergo a second reaction to form a second product when exposed to light (62) of a second wavelength. The presence of the first and second products at a common location in the resin causes a third reaction that results in a solid polymer at the common location. The method further includes directing a first light source (34) of the first wavelength into the reservoir, directing a second light source (54) of the second wavelength into the reservoir such that the first and second light sources intersect at a first predetermined location (78) within the reservoir, and allowing the third reaction to form the solid polymer at the first predetermined location.Type: GrantFiled: April 4, 2018Date of Patent: January 3, 2023Assignee: Ford Global Technologies, LLCInventors: Mark Nichols, Christopher Seubert, Chelsea Cates, Kevin Richard John Ellwood