Patents by Inventor Yuri Grapov

Yuri Grapov 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: 20240286220
    Abstract: A nozzle assembly for performing material processing operations with a handheld laser system on a surface of a workpiece. The handheld laser system comprises a laser source configured to generate laser radiation, a handheld device that guides the laser radiation, and an optical fiber coupling the handheld device to the laser source, and the nozzle assembly comprises a nozzle configured to deliver the laser radiation to the surface, and a coupling mechanism that includes a retaining portion formed on an output end of the handheld device, and an engagement portion configured to be releasably attachable to the nozzle and engage with the retaining portion.
    Type: Application
    Filed: June 20, 2022
    Publication date: August 29, 2024
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Nam Ly, Iurii Markushov, Yuri Grapov, Sergey Monveldt, Sergei Novikov
  • Publication number: 20240261897
    Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.
    Type: Application
    Filed: April 2, 2024
    Publication date: August 8, 2024
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Yuri Grapov, Kris Pruyn, Felix Stukalin, Erik Hinrichsen
  • Publication number: 20240173755
    Abstract: A method and system for cleaning a surface using laser radiation is provided. In one example, a system for cleaning a surface using laser radiation includes a laser source configured to generate laser radiation, the laser source configured to emit laser radiation in a cleaning mode, the cleaning mode characterized as a modulated continuous wave (CW) mode having a duty cycle less than 110%, pulse-repetition frequency greater of at least 10 kilohertz (kHz), and a FWHM pulse duration in a range of 1 microsecond (?s) to 10 (milliseconds) ms inclusive, a housing configured as a handheld apparatus that directs the later radiation to the surface, and an optical fiber coupling the handheld apparatus to the laser source.
    Type: Application
    Filed: June 20, 2022
    Publication date: May 30, 2024
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Iurii Markushov, Yuri Grapov, Nam Ly, Sergei Novikov
  • Patent number: 11964341
    Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: April 23, 2024
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Yuri Grapov, Kris Pruyn, Felix Stukalin, Erik Hinrichsen
  • Publication number: 20240009758
    Abstract: A handheld laser system. In certain examples the handheld laser system includes a laser source emitting laser light at a wavelength for performing a material processing operation on a workpiece material with a laser beam of the emitted laser light, a plasma sensor configured to detect plasma emitted from the workpiece material during a material processing operation, and a controller coupled to the plasma sensor and configured to: compare an optical intensity value obtained by the plasma sensor to a threshold value at a time when a predetermined time period has elapsed after the material processing operation has commenced, and produce a control command based on the comparison.
    Type: Application
    Filed: August 25, 2021
    Publication date: January 11, 2024
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Adam PINARD, Oleg SHKURIKHIN, Iurii MARKUSHOV, Walter LESLIE, Adrian DELPHIA, Elvis DAPSHI, Nam LY, Yuri GRAPOV
  • Patent number: 11833607
    Abstract: A laser alignment system is used to align an output fiber with a fiber laser, for example, when coupling a feeding fiber to a process fiber using a beam coupler or switch. The alignment system includes a laser alignment apparatus that is coupled at a first end to the output fiber and at a second end to a beam dump/power meter. The alignment apparatus defines a light passage and a light capture chamber along the light passage. When light is not aligned into the core of the output fiber, at least a portion of the light passing out of the output fiber will be captured by the light capture chamber and detected by a photodetector in optical communication with the light capture chamber. By monitoring the readings of the photodetector, the output fiber may be properly aligned with the laser light from the fiber laser.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: December 5, 2023
    Assignee: IPG PHOTONICS CORPORATION
    Inventor: Yuri Grapov
  • Publication number: 20230364706
    Abstract: A beam-shaper for transforming a MM beam with the flattop intensity distribution profile includes an end block which is fused to a downstream end of a fiber outputting the MM beam along a path within a laser head. The beam-shaper further has a collimator mounted to the laser head downstream from the end block. The collimated MM beam is then focused on the working zone with a beam waist characterized by a Gaussian intensity profile. The Gaussian region may be provided in the vicinity of the beam waist by positioning the collimator so that the Gaussian region of the MM flattop beam is located inside the end block and in the focal plane of the collimator. Alternatively, the Gaussian region may be provided within the waist by using a diffractive optical element which transforms the flattop distribution profile into a donut-shaped profile.
    Type: Application
    Filed: October 8, 2021
    Publication date: November 16, 2023
    Applicant: IPG PHOTONICS CORPORATION
    Inventors: Iurii MARKUSHOV, Alex ZELENCHUK, Yuri GRAPOV, Nikhit NAIR
  • Publication number: 20220347792
    Abstract: A laser cutting head includes a controllable collimator with movable collimator lenses for controlling beam diameter and/or focal point location. The laser cutting head may be used in a laser cutting system with a control system for controlling the position of the movable collimator lenses. The lenses may be moved, for example, to adjust the beam spot size for cutting different types of material or material thicknesses. The lenses may also be moved to adjust a focal point back to the workpiece after changing the distance of the laser cutting head relative to the workpiece.
    Type: Application
    Filed: February 12, 2019
    Publication date: November 3, 2022
    Inventors: Yuri GRAPOV, Felix STUKALIN, Nikhit NAIR
  • Patent number: 11364572
    Abstract: A laser cutting head with movable mirrors may be used to move a beam, for example, to provide beam alignment and/or to provide different wobble patterns for cutting with different kerf widths. The laser cutting head includes a cutting nozzle for directing the laser beam together with a gas to a workpiece for cutting. The movable mirrors provide a wobbling movement of the beam within a relatively small field of view, for example, within an aperture of the cutting nozzle. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the cutting head such as a thermal condition proximate one of the mirrors.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: June 21, 2022
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Yuri Grapov, Kris Pruyn, Felix Stukalin, Erik Hinrichsen
  • Publication number: 20210296843
    Abstract: A laser alignment system is used to align an output fiber with a fiber laser, for example, when coupling a feeding fiber to a process fiber using a beam coupler or switch. The alignment system includes a laser alignment apparatus that is coupled at a first end to the output fiber and at a second end to a beam dump/power meter. The alignment apparatus defines a light passage and a light capture chamber along the light passage. When light is not aligned into the core of the output fiber, at least a portion of the light passing out of the output fiber will be captured by the light capture chamber and detected by a photodetector in optical communication with the light capture chamber. By monitoring the readings of the photodetector, the output fiber may be properly aligned with the laser light from the fiber laser.
    Type: Application
    Filed: June 8, 2021
    Publication date: September 23, 2021
    Inventor: Yuri Grapov
  • Patent number: 11052482
    Abstract: A laser alignment system is used to align an output fiber with a fiber laser, for example, when coupling a feeding fiber to a process fiber using a beam coupler or switch. The alignment system includes a laser alignment apparatus that is coupled at a first end to the output fiber and at a second end to a beam dump/power meter. The alignment apparatus defines a light passage and a light capture chamber along the light passage. When light is not aligned into the core of the output fiber, at least a portion of the light passing out of the output fiber will be captured by the light capture chamber and detected by a photodetector in optical communication with the light capture chamber. By monitoring the readings of the photodetector, the output fiber may be properly aligned with the laser light from the fiber laser.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 6, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventor: Yuri Grapov
  • Publication number: 20200376594
    Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.
    Type: Application
    Filed: August 18, 2020
    Publication date: December 3, 2020
    Inventors: Yuri Grapov, Kris Pruyn, Felix Stukalin, Erik Hinrichsen
  • Patent number: 10751835
    Abstract: A laser welding head with movable mirrors may be used to perform welding operations, for example, with wobble patterns and/or seam finding/tracking and following. The movable mirrors provide a wobbling movement of one or more beams within a relatively small field of view, for example, defined by a scan angle of 1-2°. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The laser welding head may also include a diffractive optical element to shape the beam or beams being moved. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the welding head such as a thermal condition proximate one of the mirrors.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: August 25, 2020
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Yuri Grapov, Kris Pruyn, Felix Stukalin, Erik Hinrichsen
  • Publication number: 20200254563
    Abstract: A laser cutting head includes a controllable collimator with movable collimator lenses for controlling beam diameter and/or focal point location. The laser cutting head may be used in a laser cutting system with a control system for controlling the position of the movable collimator lenses. The lenses may be moved, for example, to adjust the beam spot size for cutting different types of material or material thicknesses. The lenses may also be moved to adjust a focal point back to the workpiece after changing the distance of the laser cutting head relative to the workpiece.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 13, 2020
    Inventors: Yuri GRAPOV, Felix STUKALIN, Nikhit NAIR
  • Publication number: 20200070283
    Abstract: A gas shielding device may be used with a laser processing head, such as a welding head, to diffuse and distribute a shield gas over a larger gas shielding area for shielding a larger area of metal. The gas shielding device may be coupled to the laser processing head to move with the laser beam and may be arranged coaxially to provide the larger shielding effect in all directions of welding. The gas shielding device is particularly useful for welding titanium or other metals that are highly reactive with gases in the air and/or for larger welding areas (e.g., where the laser beam is wobbled).
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Inventors: Iurii V. Markushov, Nikhit N. Nair, Frank L. Dubuque, Yuri Grapov
  • Patent number: 10201878
    Abstract: A laser cutting head includes a controllable collimator with movable collimator lenses for controlling beam diameter and/or focal point location. The laser cutting head may be used in a laser cutting system with a control system for controlling the position of the movable collimator lenses. The lenses may be moved, for example, to adjust the beam spot size for cutting different types of material or material thicknesses. The lenses may also be moved to adjust a focal point back to the workpiece after changing the distance of the laser cutting head relative to the workpiece.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: February 12, 2019
    Assignee: IPG Photonics Corporation
    Inventors: Yuri Grapov, Felix Stukalin, Nikhit Nair
  • Publication number: 20190039172
    Abstract: A laser alignment system is used to align an output fiber with a fiber laser, for example, when coupling a feeding fiber to a process fiber using a beam coupler or switch. The alignment system includes a laser alignment apparatus that is coupled at a first end to the output fiber and at a second end to a beam dump/power meter. The alignment apparatus defines a light passage and a light capture chamber along the light passage. When light is not aligned into the core of the output fiber, at least a portion of the light passing out of the output fiber will be captured by the light capture chamber and detected by a photodetector in optical communication with the light capture chamber. By monitoring the readings of the photodetector, the output fiber may be properly aligned with the laser light from the fiber laser.
    Type: Application
    Filed: February 10, 2017
    Publication date: February 7, 2019
    Applicant: IPG Photonics Corporation
    Inventor: Yuri Grapov
  • Publication number: 20180369964
    Abstract: A laser cutting head with movable mirrors may be used to move a beam, for example, to provide beam alignment and/or to provide different wobble patterns for cutting with different kerf widths. The laser cutting head includes a cutting nozzle for directing the laser beam together with a gas to a workpiece for cutting. The movable mirrors provide a wobbling movement of the beam within a relatively small field of view, for example, within an aperture of the cutting nozzle. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the cutting head such as a thermal condition proximate one of the mirrors.
    Type: Application
    Filed: February 13, 2017
    Publication date: December 27, 2018
    Applicant: IPG Photonics Corporation
    Inventors: Yuri Grapov, Kris Pruyn, Felix Stukalin, Erik Hinrichsen
  • Patent number: 9921168
    Abstract: The disclosure is a method and system for monitoring the condition of an optical protective component in a laser system associated with a data processor. In one embodiment, the method begins with directing light from the process head of a laser through the optical protective component onto a workpiece. A return light via the workpiece causes light signals coupled through the protective component and into to a fiber which extends proximate the protective component and thereafter flexibly to a sensor. The sensed signals allow monitoring the condition of the protective component during use. The method and system is operative for use with optical protective elements downstream of the process head.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: March 20, 2018
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Valentin Gapontsev, Yuri Grapov, Michael Digiantommaso
  • Patent number: D1030053
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: June 4, 2024
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Nikhit Nair, Nam Ly, Yuri Grapov