Patents by Inventor Davis Lee

Davis Lee 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: 20220248523
    Abstract: An apparatus may include a drift tube assembly, the drift tube assembly defining a triple gap configuration, and arranged to accelerate and transmit an ion beam along abeam path. The apparatus may include a resonator, to output an RF signal to the drift tube assembly, and an RF quadrupole triplet, connected to the drift tube assembly, and arranged circumferentially around the beam path.
    Type: Application
    Filed: January 29, 2021
    Publication date: August 4, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Frank Sinclair, Wai-Ming Tam, Costel Biloiu, William Davis Lee
  • Patent number: 11324973
    Abstract: The invention comprises a method and apparatus for using a multi-layer multi-color scintillation based detector element to image a tumor of a patient using a process of determining residual energies of positively charged particles after passing through the patient, the process comprising the steps of: (1) transmitting the positively charged particles at known energies through the patient and into a multi-layer detector element; (2) detecting first and second secondary photons, resultant from passage of the positively charged particles, respectively from a first layer of a first scintillation material and a second layer of a second scintillation material at two respective layer depths, where the first wavelength range differs from the second wavelength range; (4) determining residual energies of the positively charged particles, using output from the step of detecting; and (5) relating the residual energies to body densities to generate an image.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: May 10, 2022
    Inventors: Maureen Petterson, W. Davis Lee
  • Publication number: 20220022695
    Abstract: The invention comprises a method and apparatus for infusing a product component, comprising the steps of: placing the product component into a container; positioning into the product component an expansion agent, the expansion agent comprising at least one of a liquid form and a solid form; pressure sealing the container; forming, through a phase change of the expansion agent, gas bubbles of the expansion agent in the product component; and forming a gas phase propellant of the expansion agent in the container, where the product component is permeated with the expansion agent, such as where the product component is a cream, fat, dairy product, and/or milk substitute.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Applicant: Korvata, Inc.
    Inventors: W. Davis Lee, Warren R. Kirsch, Christian T. Metcalfe
  • Publication number: 20220024679
    Abstract: The invention comprises a method and apparatus for packaging a dispensable substance, including the steps of: placing a first product component into a container; adding a second product component into the container at an initial pressure of less than 1.31 atm, the container comprising a valve dispensing port; sealing the container; and increasing pressure in the container through a phase change of the second product component to a final pressure in the container, the final pressure at least 0.26 atm greater than the initial pressure. Optionally, the second product component warms in the container at least ten degrees Celsius and undergoes a phase change from a solid or liquid to a gas, which increases pressure in the container and functions as a propellant and/or as an expansion agent.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Applicant: Korvata, Inc.
    Inventors: W. Davis Lee, Warren R. Kirsch, Christian T. Metcalfe
  • Publication number: 20220002015
    Abstract: The invention comprises a method for packaging a dispensable substance, such as a food product, whipped cream, a hydrocarbon, or an air freshener, the method comprising the steps of: placing a first product component into a container, the container comprising a valve dispensing port; adding a second product component into the container, the second product component comprising at least one of: (1) a solid form of the second product component and (2) a liquid form of the second product component; sealing the container; and warming, after the step of sealing, the second product component in the container at least ten degrees Celsius, where the step of warming results in a phase change of all of the second product component into a gas phase, at least a portion of the gas phase of the second product component dissolving into the first product component to form the dispensable substance.
    Type: Application
    Filed: September 20, 2021
    Publication date: January 6, 2022
    Applicant: Korvata, Inc.
    Inventors: W. Davis Lee, Warren R. Kirsch, Christian T. Metcalfe
  • Publication number: 20210393988
    Abstract: The invention comprises a method and apparatus for treating a tumor of a patient, in a beam treatment center comprising a floor, with positively charged particles, comprising: (1) a synchrotron mounted to an elevated floor section above the floor of the beam treatment center; (2) a beam transport system, comprising: at least three fixed-position beam transport lines, where none of the synchrotron and the beam transport system penetrate through the floor of the beam treatment center; (3) the positively charged particles transported from the synchrotron, through the beam transport system, to a position above a patient positioning system during use; and (4) an optional repositionable nozzle system connected to a first, second, and third fixed-position beam transport line at a first, second, and third time, respectively, where the nozzle track forms an arc of a circle and the repositionable nozzle system moves along the nozzle track.
    Type: Application
    Filed: August 2, 2021
    Publication date: December 23, 2021
    Inventors: Daniel J. Raymond, W. Davis Lee, James P. Bennett
  • Patent number: 11189460
    Abstract: An apparatus may include an RF power assembly, arranged to output an RF signal, and a drift tube assembly, arranged to transmit an ion beam, and coupled to the RF power assembly. The drift tube assembly may include a first ground electrode; an AC drift tube assembly, disposed downstream of the first ground electrode; and a second ground electrode, disposed downstream of the AC drift tube assembly, where the AC drift tube assembly comprises at least one variable length AC drift tube.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: November 30, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Charles T. Carlson, Paul J. Murphy, Frank Sinclair, William Davis Lee
  • Patent number: 11185717
    Abstract: The invention comprises a segmented rolling floor apparatus and method of use thereof, such as for use in a charged particle cancer therapy system. The segmented rolling floor comprises a first spool and a second spool, attached to opposite ends of the rolling floor, which cooperatively wind and unwind the rolling floor. The segmented rolling floor circumferentially surrounds a nozzle system penetrating through an aperture in the segmented rolling floor, where the nozzle system is used to deliver charged particles, from an accelerator, to a tumor of a patient. The rolling floor and nozzle systems move at respective rates maintaining the nozzle system in the aperture allowing for a safe/walkable floor while allowing treatment of the tumor as a gantry rotates the nozzle system and delivers protons to the tumor from positions above and below the floor.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: November 30, 2021
    Inventors: Jillian Reno, Armin Huseinovic, Mark R. Amato, Daniel J. Raymond, W. Davis Lee, Lou Wainwright, James P. Bennett
  • Patent number: 11166686
    Abstract: The invention comprises a method and apparatus for imaging a tumor with X-rays while, simultaneously or alternatingly, treating or imaging the tumor with positively charged particles. An X-ray imaging system, such as one or two sets of a cone beam X-ray source coupled to an X-ray detector, is rotatable about a first axis and a patient. The X-ray imaging system is positioned off axis a path of charged particles delivered through an exit port of a nozzle system from a synchrotron and does not block a path of the positively charged particles from the exit nozzle to the patient or an imaging path from the patient to a scintillation detector. Fiducial indicators are used to confirm an unobstructed path of the positively charged particles in a treatment room comprising many movable elements, such as the X-ray imaging system and a patient positioning system/couch.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: November 9, 2021
    Inventors: James P. Bennett, W. Davis Lee
  • Patent number: 11135451
    Abstract: The invention comprises a method and apparatus for treating a tumor of a patient, in a beam treatment center comprising a floor, with positively charged particles, comprising: (1) a synchrotron mounted to an elevated floor section above the floor of the beam treatment center; (2) a beam transport system, comprising: at least three fixed-position beam transport lines, where none of the synchrotron and the beam transport system penetrate through the floor of the beam treatment center; (3) the positively charged particles transported from the synchrotron, through the beam transport system, to a position above a patient positioning system during use; and (4) an optional repositionable nozzle system connected to a first, second, and third fixed-position beam transport line at a first, second, and third time, respectively, where the nozzle track forms an arc of a circle and the repositionable nozzle system moves along the nozzle track.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: October 5, 2021
    Inventors: Daniel J. Raymond, W. Davis Lee, James P. Bennett
  • Patent number: 11065953
    Abstract: A fabric and elastomeric material (referred to as a fabric trilayer) combined with a sealant may be applied in such a fashion so as to eliminate or minimize air entrapment in an elastomeric composite structure that forms a seal-sealing volume. The performance of the self-sealing volume is dramatically improved with this minimizing of air entrapment. Surprisingly and unexpectedly, this construction approach may be accomplished without significantly adding to the weight or thickness of the volume and without affecting the outer dimension of the self-sealing volume. Thus, a method and system for forming a self-sealing volume are described. The system includes an elastomeric composite structure comprising at least one layer of an elastomeric material derived from a neat (no solvent) elastomeric material that does not substantially react at room temperature.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 20, 2021
    Assignee: ROBERTSON FUEL SYSTEMS, L.L.C.
    Inventors: Matthew Whipple, Ruben Lopez, Davis Lee
  • Publication number: 20210178193
    Abstract: The invention comprises an apparatus for controlling tumor treatment with positively charged particles, comprising: a cancer therapy system, comprising a set of modular control units corresponding to a set of subsystems of the cancer therapy system; a first subsystem of the set of subsystems comprising an extraction system; and a second subsystem of the set of subsystems comprising a dual axis scanning system, the dual axis scanning system comprising: a first pair of magnets on opposite sides of a beam path chamber; a second pair of magnets on opposite sides of the beam path chamber; and a trapezoidal prism gap positioned between the first pair of magnets and the second pair of magnets, where communication from the cancer therapy system with each member of the set of subsystems occurs without direct communication between members of the set of subsystems.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 17, 2021
    Inventors: Stephen L. Spotts, W. Davis Lee
  • Patent number: 11037758
    Abstract: Provided herein are approaches for in-situ plasma cleaning of ion beam optics. In one approach, a system includes a component (e.g., a beam-line component) of an ion implanter processing chamber. The system further includes a power supply for supplying a first voltage and first current to the component during a processing mode and a second voltage and second current to the component during a cleaning mode. The second voltage and current are applied to one or more conductive beam optics of the component, individually, to selectively generate plasma around one or more of the one or more conductive beam optics. The system may further include a flow controller for adjusting an injection rate of an etchant gas supplied to the beam-line component, and a vacuum pump for adjusting pressure of an environment of the beam-line component.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: June 15, 2021
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Kevin Anglin, William Davis Lee, Peter Kurunczi, Ryan Downey, Jay T. Scheuer, Alexandre Likhanskii, William M. Holber
  • Publication number: 20210170199
    Abstract: The invention comprises a segmented rolling floor apparatus and method of use thereof, such as for use in a charged particle cancer therapy system. The segmented rolling floor comprises a first spool and a second spool, attached to opposite ends of the rolling floor, which cooperatively wind and unwind the rolling floor. The segmented rolling floor circumferentially surrounds a nozzle system penetrating through an aperture in the segmented rolling floor, where the nozzle system is used to deliver charged particles, from an accelerator, to a tumor of a patient. The rolling floor and nozzle systems move at respective rates maintaining the nozzle system in the aperture allowing for a safe/walkable floor while allowing treatment of the tumor as a gantry rotates the nozzle system and delivers protons to the tumor from positions above and below the floor.
    Type: Application
    Filed: June 6, 2019
    Publication date: June 10, 2021
    Inventors: Jillian Reno, Armin Huseinovic, Mark R. Amato, Daniel J. Raymond, W. Davis Lee, Lou Wainwright
  • Patent number: 11026647
    Abstract: The invention comprises a method and apparatus for imaging a tumor with X-rays while, simultaneously or alternatingly, treating or imaging the tumor with positively charged particles. An X-ray imaging system, such as one or two sets of a cone beam X-ray source coupled to an X-ray detector, is rotatable about a first axis and a patient. The X-ray imaging system is positioned off axis a path of charged particles delivered through an exit port of a nozzle system from a synchrotron and does not block a path of the positively charged particles from the exit nozzle to the patient or an imaging path from the patient to a scintillation detector. Fiducial indicators are used to confirm an unobstructed path of the positively charged particles in a treatment room comprising many movable elements, such as the X-ray imaging system and a patient positioning system/couch.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: June 8, 2021
    Inventors: James P. Bennett, W. Davis Lee
  • Publication number: 20210162239
    Abstract: The invention comprises a method and apparatus for treating a tumor of a patient with charged particles, comprising the step of developing a multi-modality treatment plan, the multi-modality treatment plan directing: (1) use of a first beam type to treat a first volume of the tumor, the first beam type a first mass per particle and (2) use of a second beam type to treat a second volume of the tumor, the second beam type comprising a second mass per particle, where the second mass per particle is at least ten percent different than the first mass per particle and the second volume differs from the first volume. The multi-modality treatment plan is optionally formed by selectively merging treatment plans using the respective particle types or is developed using properties of the multiple particle types.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Inventors: James P. Bennett, W. Davis Lee, Mark R. Amato
  • Patent number: 11000696
    Abstract: The invention comprises a method and apparatus for scanning charged particles in a cancer therapy system, comprising the steps of: (1) providing a first and second dipole magnet system and a gap, the gap comprising a common gap length, along a path of the charged particles, within both the first and second dipole magnet systems, the gap comprising a progressively increasing x/y-plane cross-section area from an entrance area of the charged particles into the double dipole magnet system to an exit area of the double dipole magnet system, the x/y-plane perpendicular to a z-axis from a center of the entrance area to a center of the exit area; (2) scanning the positively charged particles along a first axis of the x/y-plane using the first dipole magnet system; and (3) scanning the positively charged particles along a second axis of the x/y-plane using the second dipole magnet system.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: May 11, 2021
    Inventors: Faye Hendley Elgart, Nick Ruebel, Mark R. Amato, Nandish Desai, W. Davis Lee
  • Patent number: 11000705
    Abstract: The invention comprises a method and apparatus for imaging a tumor of a patient with positively charged particles, comprising the steps of: (1) accelerating the positively charged particles to a relativistic energy using an accelerator; (2) transporting the positively charged particles from the accelerator, through a beam transport system, through an output nozzle of the beam transport system, and through the patient to yield a residual particle beam comprising a residual relativistic velocity; (3) determining the residual relativistic velocity using a first time of flight detector and a second time of flight detector separated by a separation distance; and (4) generating a positively charged particle computed tomography image using the residual relativistic velocity, where individual particles in the residual particle beam comprise a second mass of at least 1.02 times that of a first mass of the individual particles prior to the step of accelerating.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: May 11, 2021
    Inventors: W. Davis Lee, Maureen Petterson
  • Patent number: 10994464
    Abstract: A fabric coated or impregnated with an elastomeric material may include a polyurethane dispersion layer combined with a sealant. The fabric may be applied in such a fashion so as to enable the elimination of solvent or fluid that is associated with the elastomer. The polyurethane dispersion layer generally comprises an elastomeric material dispersed or dissolved in a liquid medium, such as, but not limited to, water. At the same time, the integrity of the elastomeric composite which is formed from the dispersion and sealant layers may be maintained in order to minimize the presence of air voids and pockets. It has thus been realized that in doing so the performance of the self-sealing volume is dramatically improved. This method of construction usually may be accomplished without significantly adding to the weight or thickness of the volume and without affecting the outer dimension of the self-sealing volume.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: May 4, 2021
    Assignee: ROBERTSON FUEL SYSTEMS, L.L.C.
    Inventors: Matthew Whipple, Davis Lee
  • Patent number: 10993680
    Abstract: The invention comprises a method and apparatus for treating a tumor, comprising the steps of: (1) a main controller sequentially delivering charged particles from a synchrotron along a first beam transport line, through a nozzle system, and to the tumor according to a current version of the radiation treatment plan; (2) concurrent with the step of delivering, generating an image of the tumor using an imaging system; (3) the main controller automatically generating an updated version of the radiation treatment plan using the image, the updated version of the radiation treatment plan becoming the current version of the radiation treatment plan; and (4) repeating the steps of: delivering grouped bunches of the charged particles, generating an image of the tumor, and automatically generating the updated or current version of the radiation treatment plan with optional intervening doctor approval.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: May 4, 2021
    Inventors: Nick Ruebel, Mark R. Amato, Susan L. Michaud, James P. Bennett, Jillian Reno, W. Davis Lee