Patents by Inventor Ryan BRESCOE

Ryan BRESCOE 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).

  • Laser welding method
    Patent number: 11524361
    Abstract: A method for laser keyhole welding is disclosed to weld two pieces together made of a metal alloy. The method independently adjusts power in a focused center beam and power in a concentric focused annular beam. At the termination of a weld, the power of the annular beam is reduced, motion of the focused beams is stopped, the power of the center beam is increased, and the power of both beams is initially ramped down rapidly and then ramped down slowly. Increasing the power of the center beam equalizes the temperature of both pieces prior to solidification and cooling at the termination of the weld. An additional pulse of power may be applied to prevent the formation of defects or to erase any defects.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: December 13, 2022
    Assignee: Coherent, Inc.
    Inventor: Ryan Brescoe
  • Laser welding method
    Patent number: 11389894
    Abstract: A method for laser keyhole welding of metal alloys is disclosed. The method independently adjusts power in a focused center beam and power in a concentric focused annular beam. At the termination of a weld, the power in the center beam is initially ramped up and then ramped down, while the power in the annular beam is ramped down. Increasing the power in the center beam enables a controlled and prolonged contraction of the keyhole and melt pool, thereby preventing undesirable cracking.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: July 19, 2022
    Assignee: Coherent, Inc.
    Inventors: Ryan Brescoe, Jean-Philippe Lavoie
  • LASER WELDING METHOD
    Publication number: 20210362271
    Abstract: A method for laser keyhole welding is disclosed to weld two pieces together made of a metal alloy. The method independently adjusts power in a focused center beam and power in a concentric focused annular beam. At the termination of a weld, the power of the annular beam is reduced, motion of the focused beams is stopped, the power of the center beam is increased, and the power of both beams is initially ramped down rapidly and then ramped down slowly. Increasing the power of the center beam equalizes the temperature of both pieces prior to solidification and cooling at the termination of the weld. An additional pulse of power may be applied to prevent the formation of defects or to erase any defects.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 25, 2021
    Applicant: Coherent, Inc.
    Inventor: Ryan BRESCOE
  • LASER WELDING METHOD
    Publication number: 20200254562
    Abstract: A method for laser keyhole welding of metal alloys is disclosed. The method independently adjusts power in a focused center beam and power in a concentric focused annular beam. At the termination of a weld, the power in the center beam is initially ramped up and then ramped down, while the power in the annular beam is ramped down. Increasing the power in the center beam enables a controlled and prolonged contraction of the keyhole and melt pool, thereby preventing undesirable cracking.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 13, 2020
    Applicant: Coherent, Inc.
    Inventors: Ryan BRESCOE, Jean-Philippe LAVOIE