Patents by Inventor Sharon G. TORRES

Sharon G. TORRES 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).

  • Publication number: 20230123528
    Abstract: The present disclosure relates to a system for performing an Additive Manufacturing (AM) fabrication process on a powdered material, deposited as a powder bed and forming a substrate. The system makes use of a laser for generating a laser beam, and an optical subsystem. The optical subsystem is configured to receive the laser beam and to generate an optical signal comprised of electromagnetic radiation sufficient to melt or sinter the powdered material. The optical subsystem uses a digitally controlled mask configured to pattern the optical signal as needed to melt select portions of a layer of the powdered material to form a layer of a 3D part. A power supply and at least one processor are also included for generating a plurality of different power density levels selectable based on a specific material composition, absorptivity and diameter of the powder particles, and a known thickness of the powder bed. The powdered material is used to form the 3D part in a sequential layer-by-layer process.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 20, 2023
    Inventors: Bassem S. EL-DASHER, Andrew J. BAYRAMIAN, James A. DEMUTH, Joseph C. FARMER, Sharon G. TORRES
  • Patent number: 11534865
    Abstract: The present disclosure relates to a system for performing an Additive Manufacturing (AM) fabrication process on a powdered material (PM) forming a substrate. The system uses a first optical subsystem to generate an optical signal comprised of electromagnetic (EM) radiation sufficient to melt or sinter a PM of the substrate. The first optical subsystem is controlled to generate a plurality of different power density levels, with a specific one being selected based on a specific PM forming a powder bed being used to form a 3D part. At least one processor controls the first optical subsystem and adjusts a power density level of the optical signal, taking into account a composition of the PM. A second optical subsystem receives the optical signal from the first optical subsystem and controls the optical signal to help facilitate melting of the PM in a layer-by-layer sequence of operations.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: December 27, 2022
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Bassem S. El-Dasher, Andrew Bayramian, James A. Demuth, Joseph C. Farmer, Sharon G. Torres
  • Publication number: 20200139487
    Abstract: The present disclosure relates to a system for performing an Additive Manufacturing (AM) fabrication process on a powdered material (PM) forming a substrate. The system uses a first optical subsystem to generate an optical signal comprised of electromagnetic (EM) radiation sufficient to melt or sinter a PM of the substrate. The first optical subsystem is controlled to generate a plurality of different power density levels, with a specific one being selected based on a specific PM forming a powder bed being used to form a 3D part. At least one processor controls the first optical subsystem and adjusts a power density level of the optical signal, taking into account a composition of the PM. A second optical subsystem receives the optical signal from the first optical subsystem and controls the optical signal to help facilitate melting of the PM in a layer-by-layer sequence of operations.
    Type: Application
    Filed: December 27, 2019
    Publication date: May 7, 2020
    Inventors: Bassem S. EL-DASHER, Andrew BAYRAMIAN, James A. DEMUTH, Joseph C. FARMER, Sharon G. TORRES
  • Patent number: 10569363
    Abstract: A system is disclosed for performing an Additive Manufacturing (AM) fabrication process on a powdered material forming a substrate. The system may make use of a diode array for generating an optical signal sufficient to melt a powdered material of the substrate. A mask may be used for preventing a first predetermined portion of the optical signal from reaching the substrate, while allowing a second predetermined portion to reach the substrate. At least one processor may be used for controlling an output of the diode array.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: February 25, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Bassem S. El-Dasher, Andrew Bayramian, James A. Demuth, Joseph C. Farmer, Sharon G. Torres
  • Patent number: 9855625
    Abstract: A system is disclosed for performing an Additive Manufacturing (AM) fabrication process on a powdered material forming a substrate. The system may make use of a diode array for generating an optical signal sufficient to melt a powdered material of the substrate. A mask may be used for preventing a first predetermined portion of the optical signal from reaching the substrate, while allowing a second predetermined portion to reach the substrate. At least one processor may be used for controlling an output of the diode array.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: January 2, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Bassem S. El-Dasher, Andrew Bayramian, James A. Demuth, Joseph C. Farmer, Sharon G. Torres
  • Publication number: 20160243652
    Abstract: A system is disclosed for performing an Additive Manufacturing (AM) fabrication process on a powdered material forming a substrate. The system may make use of a diode array for generating an optical signal sufficient to melt a powdered material of the substrate. A mask may be used for preventing a first predetermined portion of the optical signal from reaching the substrate, while allowing a second predetermined portion to reach the substrate. At least one processor may be used for controlling an output of the diode array.
    Type: Application
    Filed: May 3, 2016
    Publication date: August 25, 2016
    Inventors: Bassem S. EL-DASHER, Andrew BAYRAMIAN, James A. DEMUTH, Joseph C. FARMER, Sharon G. TORRES
  • Publication number: 20160129503
    Abstract: A system is disclosed for performing an Additive Manufacturing (AM) fabrication process on a powdered material forming a substrate. The system may make use of a diode array for generating an optical signal sufficient to melt a powdered material of the substrate. A mask may be used for preventing a first predetermined portion of the optical signal from reaching the substrate, while allowing a second predetermined portion to reach the substrate. At least one processor may be used for controlling an output of the diode array.
    Type: Application
    Filed: January 5, 2016
    Publication date: May 12, 2016
    Inventors: Bassem S. EL-DASHER, Andrew BAYRAMIAN, James A. DEMUTH, Joseph C. FARMER, Sharon G. TORRES
  • Patent number: 9308583
    Abstract: A system is disclosed for performing an Additive Manufacturing (AM) fabrication process on a powdered material forming a substrate. The system may make use of a diode array for generating an optical signal sufficient to melt a powdered material of the substrate. A mask may be used for preventing a first predetermined portion of the optical signal from reaching the substrate, while allowing a second predetermined portion to reach the substrate. At least one processor may be used for controlling an output of the diode array.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: April 12, 2016
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Bassem S. El-Dasher, Andrew Bayramian, James A. Demuth, Joseph C. Farmer, Sharon G. Torres
  • Publication number: 20140252687
    Abstract: A system is disclosed for performing an Additive Manufacturing (AM) fabrication process on a powdered material forming a substrate. The system may make use of a diode array for generating an optical signal sufficient to melt a powdered material of the substrate. A mask may be used for preventing a first predetermined portion of the optical signal from reaching the substrate, while allowing a second predetermined portion to reach the substrate. At least one processor may be used for controlling an output of the diode array.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 11, 2014
    Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventors: Bassem S. EL-DASHER, Andrew BAYRAMIAN, James A. DEMUTH, Joseph C. FARMER, Sharon G. TORRES