Patents Assigned to Lawrence Livermore National Security, LLC
  • Patent number: 10494470
    Abstract: This invention relates to chemical polymer compositions, methods of synthesis, and fabrication methods for devices regarding polymers capable of displaying shape memory behavior (SMPs) and which can first be polymerized to a linear or branched polymeric structure, having thermoplastic properties, subsequently processed into a device through processes typical of polymer melts, solutions, and dispersions and then crossed linked to a shape memory thermoset polymer retaining the processed shape.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: December 3, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Thomas S. Wilson, Michael Keith Hearon, Jane P. Bearinger
  • Publication number: 20190360526
    Abstract: Novel configurations of levitating passive magnetic bearing configurations are described. Such configurations can be used for the precise control of the magnitude and sign of the bearing stiffness, thereby facilitating the overall design of the system in ways that are not possible with conventional attractive or repelling bearing elements.
    Type: Application
    Filed: August 9, 2019
    Publication date: November 28, 2019
    Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventor: Richard F. Post
  • Patent number: 10485427
    Abstract: A system and method is disclosed for non-contact detection and/or imaging and/or monitoring target subsurface tissue of at least one of human or animal anatomy. The system applies a first optical excitation signal to an outer tissue surface at a first location on the anatomy, which excites the target subsurface tissue to produce acoustic signals which are transmitted to an outer tissue surface of the anatomy. A gel-like, impedance matching and signal converting (IMASC) material layer is applied to the outer tissue surface at a second location on the anatomy. The IMASC material layer contains material elements which are able to influence characteristics of an optical signal impinging and reflected from the IMASC material, in accordance with acoustic signals that have been reflected from the target subsurface tissue, and which propagate into the IMASC material.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: November 26, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Stavros Demos
  • Patent number: 10479933
    Abstract: A method includes positioning a porous structure in a pressure cell; injecting an inert pressure medium within the pressure cell; and pressurizing the pressure cell to a pressure that thermodynamically favors a crystalline phase of the porous structure over an amorphous phase of the porous structure to transition the amorphous phase of the porous structure into the crystalline phase of the porous structure.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: November 19, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Peter J. Pauzauskie, Jonathan C. Crowhurst, Marcus A. Worsley, Joe H. Satcher, Jr.
  • Patent number: 10479678
    Abstract: A cryogenic hydrogen storage system reduces hydrogen loss by providing an initial supply of hydrogen wherein the initial hydrogen has an initial para/ortho hydrogen ratio. The initial hydrogen having an initial para/ortho hydrogen ratio is adjusted to produce final hydrogen having a final para/ortho hydrogen ratio with a greater amount of ortho hydrogen, The cryogenic hydrogen storage system is refueled with the final hydrogen having a final para/ortho hydrogen ratio with a greater amount of ortho hydrogen.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: November 19, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Guillaume Petitpas, Salvador M. Aceves
  • Patent number: 10471543
    Abstract: Laser additive manufacturing apparatus, systems, and methods for the fabrication of high quality freeform high value structures. The apparatus, systems, and methods utilize a material powder having varying particle size and shape as raw material. It can also be adopted to use a wire as the feed material.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: November 12, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Stavros G. Demos
  • Patent number: 10476226
    Abstract: A laser amplifier module having an enclosure includes an input window, a mirror optically coupled to the input window and disposed in a first plane, and a first amplifier head disposed along an optical amplification path adjacent a first end of the enclosure. The laser amplifier module also includes a second amplifier head disposed along the optical amplification path adjacent a second end of the enclosure and a cavity mirror disposed along the optical amplification path.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: November 12, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Andrew James Bayramian, Kenneth Manes, Robert J. Deri, Al Erlandson, John Caird, Mary Spaeth
  • Patent number: 10464015
    Abstract: In one embodiment, a separation membrane includes: a porous support structure; and at least one alkali metal hydroxide disposed within pores of the porous support structure. In another embodiment, a method for separating acidic gases from a gas mixture includes exposing the gas mixture to a separation membrane at an elevated temperature, where the separation membrane includes a porous support and at least one molten alkali metal hydroxide disposed within pores of the porous support.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: November 5, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Marcus Worsley, Patrick Campbell, Sangil Kim, Matthew Merrill
  • Patent number: 10466183
    Abstract: A system for characterizing the material of an object scanned via a dual-energy computed tomography scanner is provided. The system generates photoelectric and Compton sinograms based on a photoelectric-Compton decomposition of low-energy and high-energy sinograms generated from the scan and based on a scanner spectral response model. The system generates a Compton volume with Compton attenuation coefficients from the Compton sinogram and a photoelectric volume with photoelectric attenuation coefficients from the photoelectric sinogram. The system generates an estimated effective atomic number for a voxel and an estimated electron density for the voxel from the Compton attenuation coefficient and photoelectric coefficient for the voxel and scanner-specific parameters. The system then characterizes the material within the voxel based on the estimated effective atomic number and estimated electron density for the voxel.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: November 5, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Isaac Seetho, Maurice B. Aufderheide, Stephen G. Azevedo, William D. Brown, Kyle Champley, Daniel Schneberk, G. Patrick Roberson, Jeffrey S. Kallman, Harry E. Martz, Jr., Jerel A. Smith
  • Patent number: 10449632
    Abstract: An additive manufacturing system wherein a gentle sintering run on heat-fusible particles is followed closely by a selective laser melting run. The laser sintering run slightly sinters the particles and causes the particles to adhere to each other, but not necessarily deform and lose their original shape. The particles become connected via bridges between each other, which holds them in place. During the laser melting run, the powder melts in place, with minimum particle ejection or mobility, since the particles form a network of connected particles.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: October 22, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Saad Khairallah
  • Patent number: 10454244
    Abstract: Apparatuses, methods, and systems are disclosed to drive pumping laser diode arrays. In implementations, an integrated system can be constructed to in a compact, efficient and cost-effective manner and to meet the needs of driving laser diode arrays in various diode pumped solid state laser applications. The disclosed implementations include individual laser diode drivers or pulsers, methods of communicating with laser diode drivers, and methods of controlling the pulse shape of each laser diode driver.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: October 22, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Steven J. Telford, Andrew James Bayramian, Glenn Beer, Robert J. Deri, Edward S. Fulkerson, Charles L. Heinbockel, Edward S. Koh, Rodney Kay Lanning
  • Patent number: 10451749
    Abstract: A neutron detector system for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly to count neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. The system includes a Poisson neutron generator for in-beam interrogation of a possible fissile neutron source and a DC power supply that exhibits electrical ripple on the order of less than one part per million. Certain voltage multiplier circuits, such as Cockroft-Walton voltage multipliers, are used to enhance the effective of series resistor-inductor circuits components to reduce the ripple associated with traditional AC rectified, high voltage DC power supplies.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 22, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Mark S Rowland, Neal J Snyderman
  • Patent number: 10451539
    Abstract: This invention relates to a microelectromechanical device for mechanical characterization of a specimen. In one embodiment the device may incorporate a substrate, at least one first flexure bearing and at least one second flexure bearing, both being supported on the substrate. First and second movable shuttles may be used which are supported above the substrate by the flexure bearings so that each is free to move linearly relative to the substrate. Ends of the movable shuttles are separated by a gap. A thermal actuator may be connected to one end of the first movable shuttle, and operates to cause the first movable shuttle to move in a direction parallel to the surface of the substrate in response to a signal applied to the thermal actuator. A first capacitive sensor may be formed between the first movable shuttle and the substrate, and a second capacitive sensor formed between the second movable shuttle and the substrate.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: October 22, 2019
    Assignees: Lawrence Livermore National Security, LLC, Board of Regents, The University of Texas System
    Inventors: Sourabh Saha, Robert Matthew Panas, Michael A. Cullinan, Ian Seth Ladner
  • Publication number: 20190317401
    Abstract: Disclosed here is a method for making an architected three-dimensional aerogel, comprising providing a photoresin comprising a solvent, a photoinitiator, a crosslinkable polymer precursor, and a precursor for graphene, metal oxide or metal chalcogenide; curing the photoresin using projection microstereolithography layer-by-layer to produce a wet gel having a pre-designed three dimensional structure; drying the wet gel to produce a dry gel; and pyrolyzing the dry gel to produce an architected three-dimensional aerogel. Also disclosure is a photoresin for projection microstereolithography, comprising a solvent, a photoinitiator, a crosslinkable polymer precursor, and graphene oxide.
    Type: Application
    Filed: May 31, 2019
    Publication date: October 17, 2019
    Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventors: Marcus A. Worsley, Patrick G. Campbell, Eric B. Duoss, James S. Oakdale, Christopher M. Spadaccini, Ryan Hensleigh
  • Patent number: 10446706
    Abstract: A method of manufacturing a photovoltaic structure includes forming a p-type semiconductor absorber layer containing a copper indium gallium selenide based material over a first electrode, forming a n-type cadmium sulfide layer over the p-type semiconductor absorber layer by sputtering in an ambient including hydrogen gas and oxygen gas, and forming a second electrode over the cadmium sulfide layer.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: October 15, 2019
    Assignees: BEIJING APOLLO DING RONG SOLAR TECHNOLOGY CO., LTD., LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Neil Mackie, Geordie Zapalac, Weijie Zhang, John F. Corson, Xiaoqing He, Angus Rockett, Joel Varley, Vincenzo Lordi
  • Patent number: 10444492
    Abstract: A flexure-based micro-array having a plurality of micro-assemblies, each comprising: an object; and at least three electrostatic actuation modules for tipping, tilting, and/or piston-actuating the object, each actuation module comprising: a base with first and second electrodes electrically isolated from each other; an electrically conductive lever arm; a first flexure bearing suspending the lever arm adjacent the first and second electrodes so that electrical activation of at least one of the first and second electrodes produces an electrostatic moment of force on the lever arm to resiliently bias the first flexure bearing and pivot the lever arm about a fulcrum; and a second flexure bearing connecting the lever arm to the object at a connection location that is different from other connection locations of the other actuation modules so that pivoting the lever arm about the fulcrum induces the second flexure bearing to pivot the object about an object pivot axis defined between two of the other connection lo
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: October 15, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Jonathan Hopkins, Robert Matthew Panas
  • Patent number: 10442871
    Abstract: Novel thioalkylcarboxylate-modified CDs and pharmaceutical compositions comprising these thioalkylcarboxylate-modified CDs are disclosed, as well as methods of using the disclosed thioalkylcarboxylate-modified CDs and pharmaceutical compositions thereof to neutralize or reduce undesired effects or symptoms associated with one or more fentanyl related compounds in a subject in need thereof. The use of the disclosed thioalkylcarboxylate-modified CDs to detect the presence of one or more fentanyl related compounds in a sample is also disclosed, which comprises contacting the sample with said thioalkylcarboxylate-modified CDs or a composition comprising these CDs.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: October 15, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Daniel Joseph Kennedy, Brian P. Mayer, Carlos A. Valdez
  • Patent number: 10447110
    Abstract: A radial stabilizer is provided for stabilizing levitation passive bearing elements against lateral displacements. The stabilizer provides a means to introduce anisotropy in the radial stiffness of the stabilizer. The presence of anisotropic stiffness has a strongly stabilizing effect on whirl-type rotor-dynamic instabilities. The stabilizer design also provides a means for continuously monitoring the state of health of the rotor by signaling the onset of changes of balance that would be expected to precede any major failure.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: October 15, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Publication number: 20190309425
    Abstract: A flow-through electrolysis cell includes a hierarchical nanoporous metal cathode. A method of reducing CO2 includes flowing the CO2 through the hierarchical nanoporous metal cathode of the flow-through electrolysis cell.
    Type: Application
    Filed: April 5, 2018
    Publication date: October 10, 2019
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Monika M. Biener, Juergen Biener, Siwei Liang, Zhen Qi, Michael Stadermann, Vedasri Vedharathinam
  • Publication number: 20190310420
    Abstract: An all fiber wavelength selective coupler provides wavelength selective transfer of optical energy between two or more separated waveguides. The coupler includes signal cores that are separated enough that they can be fusion spliced to standard fibers as lead-in and lead-out pigtails. A bridge between the signal cores facilitates transfer of the optical energy through a process of evanescent coupling. In one example, the bridge is formed of a series of graded index cores.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 10, 2019
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Graham S. Allen, Diana C. Chen, Matthew J. Cook, Robert P. Crist, Derrek R. Drachenberg, Jay W. Dawson, Victor V. Khitrov, Leily Kiani, Michael J. Messerly, Paul H. Pax, Nick Schenkel