Patents Assigned to General Fusion, Inc.
  • Patent number: 11711884
    Abstract: A plasma compression driver is connected to a plasma containment vessel containing a liquid medium that forms a liquid liner containing plasma, and comprises a pair of coaxially aligned pistons that are sequentially driven towards the liquid liner. A pusher bore containing a pusher piston is coaxial with and has a smaller diameter than a driver bore containing a driver piston such that an interconnecting annular face surface is defined at the junction of the driver and pusher bores. During the compression operation, a prime mover accelerates the driver piston towards the pusher piston and compresses a compression fluid, which accelerates the pusher piston and pushes the liquid medium in the pusher bore into the vessel, causing the liquid liner to collapse, and compressing the plasma. Outward forces on the vessel wall caused by compression driver recoil and increased vessel pressure is counteracted by an inward force applied by the compression fluid on the annular face surface during the compression operation.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: July 25, 2023
    Assignee: General Fusion Inc.
    Inventors: James Hastings Wilkie, Joerg Zimmermann, Martin Clifford Wight, Cody John Pavel Esau, Ivan Victorovich Khalzov
  • Patent number: 11404174
    Abstract: A system for generating magnetized plasma and sustaining plasma's magnetic field comprises a plasma generator for generating magnetized plasma and a flux conserver in which the generated magnetized plasma is injected and confined. A central conductor comprises an upper central conductor and a lower central conductor that are electrically connected forming a single integrated conductor. The upper central conductor and an outer electrode form an annular plasma propagating channel. The lower central conductor extends out of the plasma generator and into the flux conserver such that an end of the inner electrode is electrically connected to a wall of the flux conserver. A power system provides a formation current pulse and a sustainment current pulse to the central conductor to form the magnetized plasma, inject such plasma into the flux conserver and sustain plasma's magnetic field.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: August 2, 2022
    Assignee: General Fusion Inc.
    Inventors: Michel Georges Laberge, Kelly Bernard Epp, Blake Kenton Rablah, Meritt Wayne Reynolds, Alexander Douglas Mossman, Stephen James Howard
  • Patent number: 11399425
    Abstract: A method and system for stably generating and accelerating magnetized plasma comprises ionizing an injected gas in a plasma generator and generating a formation magnetic field to form a magnetized plasma with a closed poloidal field, generating a reverse poloidal field behind the magnetized plasma and having a same field direction as a back edge of the closed poloidal field and having an opposite field direction of the formation magnetic field, and generating a pushing toroidal field that pushes the reverse poloidal field against the closed poloidal field, thereby accelerating the magnetized plasma through a plasma accelerator downstream from the plasma generator. The reverse poloidal field serves to prevent the reconnection of the formation magnetic field and closed poloidal field after the magnetized plasma is formed, which would allow the pushing toroidal field to mix with the closed poloidal field and cause instability and reduced plasma confinement.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: July 26, 2022
    Assignee: General Fusion Inc.
    Inventors: Stephen James Howard, Douglas Harvey Richardson, Michel Georges Laberge, Meritt Wayne Reynolds, Aaron Matthew Froese, Kelly Bernard Epp, Martin Clifford Wight, Yakov Gofman
  • Patent number: 11066327
    Abstract: Examples of a high voltage insulator are described. The high-voltage insulator is vacuum compatible and comprises a glass substrate having a face surface and a ceramic layer with uniform thickness coated on the face surface of 5 the glass substrate. The coated surface of the insulator is able to withstand high voltage pulses and exposure to charged particles radiation for a pre-determined time period. The ceramic coated glass insulator is made of a single piece of glass and can be made to large sizes.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 20, 2021
    Assignee: General Fusion Inc.
    Inventors: Kelly Bernard Epp, Michel Georges Laberge
  • Patent number: 10984917
    Abstract: Embodiments of systems and methods for compressing plasma are described in which plasma pressures above the breaking point of solid material can be achieved by injecting a plasma into a funnel of liquid metal in which the plasma is compressed and/or heated.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: April 20, 2021
    Assignee: General Fusion Inc.
    Inventors: Michel Georges Laberge, Douglas H. Richardson
  • Patent number: 10811144
    Abstract: Examples of a system for generating and compressing magnetized plasma are disclosed. The system comprises a plasma generator with a first closed end and an outlet, and a flux conserving chamber that is in tight fluid communication with the outlet of the plasma generator such that the generated plasma is injected into an inner cavity of the flux conserving chamber. An elongated central axial shaft is also provided such that the central shaft extends through the outlet of the plasma generator into the flux conserver. The end of the central shaft in connected to the flux conserver. A power source that comprises a formation power circuit and a shaft power circuit is provided to provide a formation power pulse to the plasma generator to generate magnetized plasma, and a shaft power pulse to the central axial shaft to generate a toroidal magnetic field into the plasma generator and the flux conserving chamber.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: October 20, 2020
    Assignee: General Fusion Inc.
    Inventors: Michel Georges Laberge, Meritt Wayne Reynolds, Alexander Douglas Mossman, Stephen James Howard, Blake Kenton Rablah, Peter Joseph Larkin O'Shea, Donald James Froese, Charles Beaufort Eyrich
  • Patent number: 10798808
    Abstract: Examples of systems for forming cavity and a liquid liner are described. The system comprises a vessel and a rotating member positioned within the vessel and rotatable about an axis of rotation. The rotating member has an inner surface 5 curved with respect to the axis of rotation, an outer and plurality of fluid passages that each has an inboard opening at the inner surface and an outboard opening at the outer surface. The rotating member is filled with a liquid medium and a rotational driver rotates the rotating member such that when rotating the liquid medium at least partially fills the fluid passages forming liquid liner, defining the 10 cavity. The cavity formation system is used in a liquid liner implosion system with an implosion driver that causes the liquid liner to implode inwardly collapsing the cavity. The imploding liquid liner system can be used in plasma compression systems.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 6, 2020
    Assignee: General Fusion Inc.
    Inventors: Joerg Zimmermann, David Franklin Plant, Robert Vlastimil Bouchal, Troy Nickolas Tyler, Victoria Suponitsky, Michael Harcourt Delage, Michel Georges Laberge
  • Patent number: 10546660
    Abstract: Examples of system for generating vortex cavity are disclosed. The system comprises a vessel into which a fluid is injected through one or more inlet ports and a fluid circulating system configured to circulate the fluid through the vessel such that the fluid is removed from the vessel through an outlet port and is returned back into the vessel through the one and more inlet ports. A first spinner is mounted at one wall of the vessel while a second spinner is mounted at the opposite wall of the vessel such that the second spinner is at some distance away from the first spinner and it faces the first spinner. When the fluid circulating system starts circulating the fluid within the vessel a vortex cavity is formed that extends between the first and the second spinners so that one end of the vortex cavity sits on the first spinner while the opposite end of the vortex cavity sits on the second spinner.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: January 28, 2020
    Assignee: General Fusion Inc.
    Inventors: Michel Georges Laberge, David Franklin Plant, Victoria Suponitsky, Eunice Kuatsjah
  • Patent number: 10391520
    Abstract: Examples of a pressure wave generator configured to generate high energy pressure waves in a medium are disclosed. The pressure wave generator can include a sabot carrying a piston. The sabot can further comprise a locking means to lock the piston in a fixed position when the locking means are activated. When the locking means are in a deactivated position, the piston can be released and can move at least partially away from the sabot. The sabot carrying the piston can be disposed within an inner bore of a housing of the pressure wave generator and can move within the inner bore of the housing from its first end toward its second end along a longitudinal axis of the bore. A transducer can be accommodated in the second end of the housing. The transducer can be coupled to the medium and can convert a portion of the kinetic energy of the piston into a pressure wave in the medium upon impact of the piston with the transducer.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: August 27, 2019
    Assignee: General Fusion Inc.
    Inventors: Lon William McIlwraith, Michel G Laberge
  • Patent number: 10115486
    Abstract: Examples of a modular compression chamber for use in a compression system are disclosed. The modular compression chamber comprises a plurality of individual modules and a plurality of fasteners to attach the plurality of modules in an interlocking fashion to form the chamber. The modules have a pre-determined geometry and size to form a compression chamber with a desired geometry and size. The plurality of fasteners keeps each of the individual modules in compression with neighboring modules so that the formed chamber maintains its integrity during operation. The modules can comprise a plurality of pressure wave generators to generate a pressure wave within the chamber. In one embodiment, the pressure wave generators have a pre-determined geometry and size and are configured to interlock with the neighboring generators forming the individual modules. The fasteners are configured to maintain intimate contact between side walls of the adjacent pressure wave generators.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 30, 2018
    Assignee: General Fusion Inc.
    Inventors: Lon William McIlwraith, Michel Georges Laberge, Douglas H. Richardson
  • Patent number: 10092914
    Abstract: Examples of a jet control device are described. The jet control device can comprise a jet deflecting member that is configured to intercept and/or collide with a high speed jet emerging from a jet formation location. The interaction of the jet deflecting member and the jet can cause the high speed jet to be dispersed into a plurality of jets with a number of flow directions which may be sideways to an initial direction of the high speed jet. In one embodiment the deflecting member can include a liquid guide formed by injecting a fluid out of an outlet nozzle so that the liquid guide extends longitudinally away from the outlet nozzle. In another embodiment the deflecting member can include an array of solid pellets injected through an outlet in a direction of the emerging high speed jet and configured to collide with the emerging jet thereby deflecting its initial direction.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: October 9, 2018
    Assignee: General Fusion Inc.
    Inventors: Victoria Suponitsky, Sandra Justine Barsky, J. Michel G. Laberge, Douglas Harvey Richardson, Peter Leszek Kostka
  • Patent number: 10002680
    Abstract: An apparatus for generating a pressure wave in a liquid medium is disclosed. The apparatus includes a plurality of pressure wave generators having respective moveable pistons, the pistons having respective control rods connected thereto. The apparatus also includes a plurality of transducers coupled to the liquid medium and means for causing the pistons of respective ones of the plurality of the pressure wave generators to be accelerated toward respective ones of the plurality of transducers. The apparatus further includes means for causing restraining forces to be applied to respective control rods to cause respective pistons to impact respective transducers at respective desired times and with respective desired amounts of kinetic energy such that the respective desired amounts of kinetic energy are converted into a pressure wave in the liquid medium.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: June 19, 2018
    Assignee: General Fusion Inc.
    Inventors: Michel Georges Laberge, Daniel Gelbart, Ross Henry Hill, Denis J. Connor
  • Patent number: 9967963
    Abstract: Examples of a system for generating and confining a compact toroid are disclosed. The system comprises a plasma generator for generating magnetized plasma, a flux conserver for receiving the compact toroid, a power source for providing current pulse and a controller for actively controlling a current profile of the pulse to keep plasma's q-profile within pre-determined range. Examples of methods of controlling a magnetic lifetime of a magnetized plasma by controlling a current profile of the current pulse are disclosed.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: May 8, 2018
    Assignee: General Fusion Inc.
    Inventors: Ryan Walter Zindler, Jonathan Damian Fraser
  • Patent number: 9875816
    Abstract: Embodiments of systems and methods for compressing plasma are described in which plasma pressures above the breaking point of solid material can be achieved by injecting a plasma into a funnel of liquid metal in which the plasma is compressed and/or heated.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: January 23, 2018
    Assignee: General Fusion Inc.
    Inventors: Michel Georges Laberge, Douglas H. Richardson
  • Publication number: 20170333806
    Abstract: Examples of a device for gettering and surface conditioning are disclosed. The device comprises an elongated tube with a closed first end, a second end and a body extending between the first end and the second end. The body defines an inner cavity of the tube in which a heating device is inserted. The tube is inserted into a vessel so that the first end is positioned within the vessel. A solid metal is mounted closely to the tube in a region surrounding the heating device and a meshed screen is mounted over the solid metal and secured to the tube. When the heating device is on, the heat transfers through the tube's wall into the solid metal melting and vaporizing it, so that the metal vapors travel and coat onto vessel's surfaces. The device can also be used in producing metal alloys such as lead lithium alloys.
    Type: Application
    Filed: November 2, 2015
    Publication date: November 23, 2017
    Applicant: General Fusion Inc.
    Inventors: Alexander Douglas Mossman, David Franklin Plant
  • Patent number: 9746008
    Abstract: Examples of a pressure wave generator configured to generate high energy pressure waves in a medium are disclosed. The pressure wave generator can include a movable piston with a guide through which a piston control rod can move or slide. The pressure wave generator can include a transducer coupled to a medium. During an impact of the piston on the transducer, the control rod can slide in the guide, which can reduce stress on the rod. The pressure wave generator can include a damper to decelerate the control rod, independently of the piston. Impact of the piston on the transducer transfers a portion of the piston's kinetic energy into the medium thereby generating pressure waves in the medium. A piston driving system may be used to provide precise and controlled launching or movement of the piston. Examples of methods of operating the pressure wave generator are disclosed.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: August 29, 2017
    Assignee: General Fusion Inc.
    Inventors: Lon McIlwraith, John Senger, Darcy Montgomery, Douglas H. Richardson, Peter Kostka, Kristin Bell, Ryan Zindler, Michel Georges Laberge
  • Patent number: 9596745
    Abstract: Examples of a plasma acceleration and compression device are described. The device includes a plasma accelerator with a high compression funnel section extending from an inlet of the accelerator and an elongated section connected to the high compression funnel section that can extend from the end of the funnel section to an accelerator's outlet. The funnel section can be a cone with a steep tapering while the elongated section can have a mild, gentle, tapering along its length toward the outlet. The device further includes a power source for providing a current pulse to the accelerator to generate a pushing flux to accelerate and compress a plasma torus throughout the accelerator.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: March 14, 2017
    Assignee: General Fusion Inc.
    Inventors: Michel G. Laberge, Meritt Reynolds
  • Patent number: 9463478
    Abstract: Examples of a jet control device are described. The jet control device can comprise a jet deflecting member that is configured to intercept and/or collide with a high speed jet emerging from a jet formation location. The interaction of the jet deflecting member and the jet can cause the high speed jet to be dispersed into a plurality of jets with a number of flow directions which may be sideways to an initial direction of the high speed jet. In one embodiment the deflecting member can include a liquid guide formed by injecting a fluid out of an outlet nozzle so that the liquid guide extends longitudinally away from the outlet nozzle. In another embodiment the deflecting member can include an array of solid pellets injected through an outlet in a direction of the emerging high speed jet and configured to collide with the emerging jet thereby deflecting its initial direction.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: October 11, 2016
    Assignee: General Fusion Inc.
    Inventors: Victoria Suponitsky, Sandra Justine Barsky, J. Michel G. Laberge, Douglas Harvey Richardson, Peter Leszek Kostka
  • Patent number: 9424955
    Abstract: Embodiments of systems and methods for compressing plasma are described in which plasma pressures above the breaking point of solid material can be achieved by injecting a plasma into a funnel of liquid metal in which the plasma is compressed and/or heated.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: August 23, 2016
    Assignee: General Fusion Inc.
    Inventors: Michel Georges Laberge, Douglas H. Richardson
  • Patent number: 9403191
    Abstract: Examples of a pressure wave generator configured to generate high energy pressure waves in a medium are disclosed. The pressure wave generator can include a sabot carrying a piston. The sabot can further comprise a locking means to lock the piston in a fixed position when the locking means are activated. When the locking means are in a deactivated position, the piston can be released and can move at least partially away from the sabot. The sabot carrying the piston can be disposed within an inner bore of a housing of the pressure wave generator and can move within the inner bore of the housing from its first end toward its second end along a longitudinal axis of the bore. A transducer can be accommodated in the second end of the housing. The transducer can be coupled to the medium and can convert a portion of the kinetic energy of the piston into a pressure wave in the medium upon impact of the piston with the transducer.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 2, 2016
    Assignee: General Fusion Inc.
    Inventors: Lon William McIlwraith, Michel G. Laberge