Patents Examined by Aileen B. Felton
  • Patent number: 12000681
    Abstract: A concealed amalgamated neutralizer covertly combines neutralizer material comprised of various combinations of inert materials such as calcium carbonate or silicates with common explosive material for the prevention of malicious use of the explosive material in improvised explosive devices. The concealed amalgamated neutralizer device may vary in shape, size, and color and is therefore adaptable to varying methods of containment typified by common pyrotechnic products. The neutralizer material mimics the explosive material of the pyrotechnic products without detection. Upon disassembly of a concealed amalgamated neutralizer device, the neutralizer material is mixed with and neutralizes the explosive material rendering the explosive material useless as a component for an improvised explosive device. A biodegradable container is also provided for the amalgamated neutralizer and the explosive material.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: June 4, 2024
    Assignee: I P Creations Limited
    Inventors: Daniel Hill Meeker, Benjamin John Green
  • Patent number: 11993550
    Abstract: The present invention provides for the use of at least one oil soluble polymer comprising linear polymethylene sequences with an average of 10 to 40 consecutive methylene groups to improve the water resistance of an explosive composition comprising particulate ammonium nitrate and a fuel oil, said linear polymethylene sequences with in average 10 to 40 consecutive methylene groups may be either in the main chain or in the side chains of the oil soluble polymer.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 28, 2024
    Assignee: CLARIANT INTERNATIONAL LTD
    Inventors: Michael Feustel, Matthias Krull, Ian James Tolliday, Christopher Robin Collins, Maja Franjic, Thomas Roy
  • Patent number: 11976015
    Abstract: Disclosed are a nanoenergetic material composite-based solid propellant, a method of preparing the same, and a projectile using the same. The propellant includes: potassium nitrate-sucrose (KNSU) composite powder; and nanoenergetic material (nEM) composite powder in a solid powder form mixed with the KNSU composite powder to prepare a KNSU/nEM propellant. The method includes: preparing KNSU composite powder; preparing nEM composite powder; and preparing a KNSU/nEM propellant by mixing the KNSU composite powder and the nEM composite powder in a solid powder form. The projectile includes: a clay block; a clay nozzle responsible for releasing the pressure generated by explosion of a propellant; and a propellant lamination area disposed between the clay block and the clay nozzle. Upon ignition of the KNSU/nEM propellant, the nEM composite powder increases the combustion rate and combustion temperature of a potassium nitrate-sucrose (KNSU) propellant.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 7, 2024
    Assignee: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Soohyung Kim, Jihoon Kim, Kyungju Kim, Myunghoon Cho
  • Patent number: 11958790
    Abstract: The invention is directed to a co-layered propellant grain having an exposed outer surface, wherein said propellant grain comprises an outer layer comprising a slow burning propellant composition located on essentially the entire outer surface of the grain, and an inner layer comprising a fast burning propellant composition having a higher linear burn rate than said slow burning propellant composition; wherein said propellant grain has a structure such that after ignition, the inner layer becomes increasingly exposed at the outer surface.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: April 16, 2024
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Christoffel Adrianus Van Driel, Martijn Zebregs, Dinesh Ravindre Ramlal, Michiel Hannes Straathof
  • Patent number: 11957944
    Abstract: An incendiary capsule 10 has a body 14 forming a single compartment containing a first part 18 of a two part ignition system and a quantity of a pyrotechnic heat source (PHS) 16. The capsule 10 is initiated by injecting, when ready for use, a quantity of a second part of the two part ignition system. The ignition system generates sufficient heat to initiate the PHS 16, which burns at a substantially higher temperature than the ignition system.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: April 16, 2024
    Assignee: RAINDANCE SYSTEMS PTY LTD
    Inventors: Robert Andrew Stevenson, Vincenzo Foti
  • Patent number: 11953306
    Abstract: Systems for delivering explosives including homogenizing agents and methods of delivering explosives including homogenizing agents are provided. Methods of mixing homogenizing agents with emulsion matrices are also provided. The methods can include supplying an emulsion matrix, mixing a homogenizing agent with the emulsion matrix into a mixed product, and homogenizing the mixed product into a homogenized product. The homogenized product can be sensitized and/or conveyed to a blasthole.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: April 9, 2024
    Assignee: Dyno Nobel Asia Pacific Pty Limited
    Inventors: Ben De Vries, Jeff Gore, Nathan Paris, Savas Samat, Zoe Smith
  • Patent number: 11945759
    Abstract: A method of making a fuel grain for a hybrid rocket engine includes deposing beads of fuel grain material onto mandrel using additive manufacturing to form a cylindrical fuel grain, each bead including a polymer based rocket fuel material and a nanoscale metallic material. The deposing includes deposing multiple, adjacent beads to form concentric layers of beads, wherein a composition of the beads of the fuel grain material differs between the beads of a first layer and the beads of a second layer of the fuel grain.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: April 2, 2024
    Assignee: Firehawk Aerospace, Inc.
    Inventor: Ronald D. Jones
  • Patent number: 11939276
    Abstract: A nanoparticle of a decomposition product of a transition metal aluminum hydride compound, a transition metal borohydride compound, or a transition metal gallium hydride compound. A process of: reacting a transition metal salt with an aluminum hydride compound, a borohydride compound, or a gallium hydride compound to produce one or more of the nanoparticles. The reaction occurs in solution while being sonicated at a temperature at which the metal hydride compound decomposes. A process of: reacting a nanoparticle with a compound containing at least two hydroxyl groups to form a coating having multi-dentate metal-alkoxides.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: March 26, 2024
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Albert Epshteyn, Zachary J. Huba
  • Patent number: 11932586
    Abstract: A liquid explosive for in-situ explosive fracturing in low-permeability oilfields and application thereof are provided. The liquid explosive includes raw materials in parts by mass: a main explosive with positive oxygen balance, a guest regulator and isolation microcapsules; the main explosive with the positive oxygen balance includes raw materials in parts by mass: monomethylamine nitrate, ammonium nitrate, sodium nitrate, water, guar gum, sodium nitrite, a high-temperature resistant regulator with a low detonation velocity and a surfactant; the guest regulator includes raw materials in parts by mass: a reducing agent and a density regulator; the isolation microcapsules include raw materials in parts by mass: porous hollow microbeads, a pore plugging agent and wall materials of pressure-resistant microcapsules; the guest regulator exists in the porous hollow microbeads of the isolation microcapsules.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: March 19, 2024
    Assignee: China University of Mining and Technology
    Inventors: Ning Luo, Yabo Chai, Hanliang Liang, Haohao Zhang, Cheng Zhai, Jianan Zhou, Penglong Li
  • Patent number: 11920910
    Abstract: A composition comprising boron, potassium ferricyanide, and at least one of an oxidizer, a nitramine, a binder, and an additive. Also disclosed are additional compositions, countermeasure devices including the composition, and a method of using the countermeasure device.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: March 5, 2024
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Daniel B. Nielson, Curtis W. Fielding
  • Patent number: 11884604
    Abstract: The invention is in the field of propellants. In particular the invention is directed to a propellant for ammunition, such as medium and large caliber gun ammunition, having improved performance. In accordance with the present invention a propellant charge comprises one or more longitudinally extending, progressive-externally burning grains having a number of perforations passing through the grains in the length direction and having a cross-sectional shape (perpendicular to the grain's length direction) that is elongated.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: January 30, 2024
    Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Christoffel Adrianus van Driel, Dinesh Ravindre Ramlal, Martijn Zebregs, Michiel Hannes Straathof
  • Patent number: 11878951
    Abstract: Described are energetic compositions formed of a 5,5?-bistetrazole salt and a perchlorate salt, in which the energetic composition is a co-precipitated product. The 5,5?-bistetrazole salt and the perchlorate salt can be dipotassium 5,5?-bistetrazole and potassium perchlorate. The energetic composition can have a particle size distribution between 1-50 micron and/or a mean volume diameter of less than 30 micron. In a low energy electro-explosive device, an ignition element is at least partially surrounded by an acceptor formed of this energetic composition, and the ignition element can be a bridgewire, a thin film bridge, a semiconductor bridge, or a reactive semiconductor bridge.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: January 23, 2024
    Assignee: PACIFIC SCIENTIFIC ENERGETIC MATERIALS COMPANY
    Inventors: John W. Fronabarger, Jason B. Pattison, Robert Holderman
  • Patent number: 11851382
    Abstract: The conformable pyrolant includes a fluorocarbon liquid, a fluorocarbon powder, and a micron size powdered aluminum bound together with a binder system that includes polyisobutylene and colloidal silicon dioxide. The conformable pyrolant is capable of achieving temperatures on the order 10,000° F., which will breach an ordnance item and thermally decompose an insensitive explosive fill. The conformable pyrolant also includes tungsten, wherein tungsten and silicon dioxide oxidize into fluorinated compounds, therein extending the burn and gasifying, therein enhancing ebullition and volume in general. The versatile conformable format is capable of being shaped into geometries for inclusion in ordnance items or molded into configurations for disposal of insensitive munitions.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 26, 2023
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kenneth B. Basom, Bryan Milani
  • Patent number: 11814332
    Abstract: Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: November 14, 2023
    Assignee: SELLIER & BELLOT A.S.
    Inventor: Jiri Nesveda
  • Patent number: 11814330
    Abstract: The invention relates to a cast explosive composition, particularly to a pre-cure castable explosive composition comprising an explosive material, a polymerisable binder, a microencapsulated cross linking reagent, said microencapsulated cross linking reagent, comprising a cross linking agent encapsulated in a microcapsule.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: November 14, 2023
    Assignee: BAE SYSTEMS plc
    Inventors: Andy Oden Burn, Rebecca Elizabeth Stephens
  • Patent number: 11814331
    Abstract: The present disclosure is related to the technical field of propellant performance research, and in particular, to a method for reducing propellant curing residual stress by a high-energy acoustic beam. The method includes the following steps: injecting a propellant slurry into a curing container and waiting for the propellant slurry to start curing; actuating, when the propellant slurry starts curing, a high-energy acoustic beam generator and a high-energy acoustic beam transducer to continuously emit high-energy acoustic beam to the propellant slurry in the curing container until the propellant slurry is cured to form a propellant grain; and closing the high-energy acoustic beam generator and the high-energy acoustic beam transducer. The method for reducing propellant curing residual stress by high-energy acoustic beam provided in the present disclosure can reduce residual stress inside the propellant in an effective manner, thereby ensuring operation safety of the aerospace equipment.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: November 14, 2023
    Assignee: BEIJING INSTITUTE OF TECHNOLOGY
    Inventors: Chunguang Xu, Peng Yin, Yuren Lu, Ruili Jia, Jianfeng Song
  • Patent number: 11802098
    Abstract: The invention relates to a cast explosive composition. A process for formulating a homogenous crosslinked polymer bonded explosive composition comprising the steps of: i) forming an admixture of precure castable explosive composition, comprising an explosive material, a polymerisable binder, and a cross linking reagent which comprises at least two reactive groups each of which is protected by a labile blocking group, wherein the labile blocking groups, comprise at least one resonant acoustic mixing stimulus labile linkage, ii) applying resonant acoustic mixing stimulus to the admixture, causing the at least one resonant acoustic mixing stimulus labile linkage to be removed and release said cross linking reagent, to cause the cure process to start.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 31, 2023
    Assignee: BAE SYSTEMS plc
    Inventors: Andy Oden Burn, Rebecca Elizabeth Stephens
  • Patent number: 11787752
    Abstract: A high density, generally recognized as safe, hybrid rocket motor is described, having a density-specific impulse similar to a solid rocket motor, with good performance approaching or equal to a liquid rocket motor. These high density hybrid motors resolve the packaging efficiency/effectiveness problems limiting the application of safe, low cost hybrid motor technology.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: October 17, 2023
    Assignee: TERVES, LLC
    Inventors: Andrew J. Sherman, Brian Werry, Andrew Cortopassi, Eric Boyer
  • Patent number: 11773035
    Abstract: An explosive cord is disclosed. In various embodiments, the explosive cord includes a tube having a tube inner surface and a tube outer surface, the tube inner surface defining a hollow interior that extends along a length of the tube; a carrier fiber disposed within the hollow interior of the tube, the carrier fiber having a carrier fiber exposed surface area; and a reactive material disposed on the carrier fiber exposed surface area.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: October 3, 2023
    Assignee: Goodrich Corporation
    Inventor: Joshua David Carter
  • Patent number: 11753353
    Abstract: The invention relates to a cast explosive composition. There is provided a precure castable explosive composition comprising an explosive material, a polymerisable binder, said cross linking reagent comprising at least two reactive groups each of which is protected by a labile blocking group.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: September 12, 2023
    Assignee: BAE SYSTEMS PLC
    Inventors: Rebecca Elizabeth Stephens, Richard Stephen Arthur, Wayne Cord Hayes, Michael Edward Budd