Patents by Inventor Raghav AGGARWAL

Raghav AGGARWAL 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: 11951565
    Abstract: Disclosed embodiments relate to additive manufacturing systems. In some embodiments, an additive manufacturing system may include a plurality of laser energy sources, an optics assembly configured to direct laser energy onto a build surface, and an optical fiber connector positioned between the plurality of laser energy sources and the optics assembly. A first plurality of optical fibers may extend between the plurality of laser energy sources and the optical fiber connector, and a second plurality of optical fibers may extend between the optical fiber connector and the optics assembly. Each optical fiber of the first plurality of optical fibers may be coupled to a corresponding optical fiber of the second plurality of optical fibers within the optical fiber connector.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: April 9, 2024
    Assignee: VulcanForms Inc.
    Inventors: Raghav Aggarwal, Martin C. Feldmann
  • Publication number: 20230391001
    Abstract: Systems and methods for additive manufacturing are generally disclosed. Additive manufacturing may be performed in a continuous manner and/or semi-continuous manner by transporting one or more build plates relative to printheads that comprise a plurality of energy source arrays and/or binderjet arrays that may be selectively activated to form a desired pattern in a material layer disposed on the one or more build plates.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 7, 2023
    Applicant: VulcanForms Inc.
    Inventors: Martin C. Feldmann, Raghav Aggarwal, Anastasios John Hart, Brent Jerome Brunell
  • Publication number: 20230294171
    Abstract: An additive manufacturing system may include a build surface and an optics assembly movable relative to the build surface. The optics assembly may direct laser energy from one or more laser energy sources toward the build surface to melt a portion of the build surface. The system may further comprise a gas flow head operatively coupled to the optics assembly and moveable relative to the build surface. The gas flow head may define a partially enclosed volume between the optics assembly and the build surface. The gas flow head may generate a non-uniform flow of gas through the gas flow head in a direction that is opposite a direction of motion of the optics assembly. A velocity of the gas flow may be sufficient to entrain particles ejected from the melted portion of the layer of material in order to remove the ejected particles from the partially enclosed volume.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Applicant: VulcanForms Inc.
    Inventors: Raghav Aggarwal, Michael von Dadelszen, Alexander Dunbar, Piotr Liebersbach
  • Publication number: 20220009030
    Abstract: Optics assemblies and their methods of use in additive manufacturing systems are described. In some embodiments, an additive manufacturing system may include a build surface, a plurality of laser energy sources configured to produce a plurality of laser spots on the build surface, and an optics assembly configured to independently control a size of each of the plurality of laser spots and a spacing between the plurality of laser spots on the build surface. The optics assembly may include a plurality of lens arrays, where the plurality of lens arrays is configured to adjust a size of each of the plurality of laser spots on the build surface, and at least one lens. The at least one lens may also be configured to adjust a spacing between the plurality of laser spots on the build surface.
    Type: Application
    Filed: June 24, 2021
    Publication date: January 13, 2022
    Applicant: VulcanForms Inc.
    Inventors: Michael von Dadelszen, Raghav Aggarwal, Hongqing Sun
  • Publication number: 20210387263
    Abstract: Systems and methods for additive manufacturing are described. In some embodiments, a method of controlling the one or more laser energy sources of an additive manufacturing system may be based at least in part on a scan angle and/or desired energy density. Systems and methods for controlling melt pool spacing are also described.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 16, 2021
    Applicant: VulcanForms Inc.
    Inventors: Jan Pawel Komsta, Alexander Dunbar, Raghav Aggarwal, Matthew Sweetland, Martin C. Feldmann
  • Publication number: 20210339318
    Abstract: Systems and methods for additive manufacturing are described. In some embodiments, a method of controlling a weld height in an additive manufacturing process includes determining a desired melt pool width based, at least in part, on a desired weld height; selectively activating one or more laser energy sources based, at least in part, on the desired melt pool width; and melting a portion of a layer of material on a build surface via exposure to laser energy from the one or more activated laser energy sources to form a melt pool on the build surface having the desired melt pool width. Systems and methods to the use of staggered laser energy sources are also described.
    Type: Application
    Filed: March 3, 2021
    Publication date: November 4, 2021
    Applicant: VulcanForms Inc.
    Inventors: Alexander Dunbar, Raghav Aggarwal
  • Patent number: 11036285
    Abstract: A method (200) for mixed reality interactions with avatar, comprises steps of receiving (210) one or more of an audio input through a microphone (104) and a visual input through a camera (106), displaying (220) one or more avatars (110) that interact with a user through one or more of an audio outputted from one or more speakers (112) and a video outputted from a display device (108) and receiving (230) one or more of a further audio input through the microphone (104) and a further visual input through the camera (106). Further, a system (600) for mixed reality interactions with avatar has also been provided.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: June 15, 2021
    Inventors: Abhinav Aggarwal, Raghav Aggarwal
  • Publication number: 20200376600
    Abstract: Disclosed embodiments relate to additive manufacturing systems. In some embodiments, an additive manufacturing system may include a plurality of laser energy sources, an optics assembly configured to direct laser energy onto a build surface, and an optical fiber connector positioned between the plurality of laser energy sources and the optics assembly. A first plurality of optical fibers may extend between the plurality of laser energy sources and the optical fiber connector, and a second plurality of optical fibers may extend between the optical fiber connector and the optics assembly. Each optical fiber of the first plurality of optical fibers may be coupled to a corresponding optical fiber of the second plurality of optical fibers within the optical fiber connector.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 3, 2020
    Applicant: VulcanForms Inc.
    Inventors: Raghav Aggarwal, Martin C. Feldmann
  • Publication number: 20200166991
    Abstract: A method (200) for mixed reality interactions with avatar, comprises steps of receiving (210) one or more of an audio input through a microphone (104) and a visual input through a camera (106), displaying (220) one or more avatars (110) that interact with a user through one or more of an audio outputted from one or more speakers (112) and a video outputted from a display device (108) and receiving (230) one or more of a further audio input through the microphone (104) and a further visual input through the camera (106). Further, a system (600) for mixed reality interactions with avatar has also been provided.
    Type: Application
    Filed: August 29, 2018
    Publication date: May 28, 2020
    Inventors: Abhinav AGGARWAL, Raghav AGGARWAL