Patents Examined by James S. Bergin
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Patent number: 11598617Abstract: A bullet (100), having: a main body (102) with a bore (106) bounded by a sidewall (124); an insert (104) that is disposed in the bore and that has longitudinal splines (460) configured to form a longitudinal flute (4620 in the insert and to provide radial support for the sidewall of the bore. A leading end (466) of the flute is open.Type: GrantFiled: April 8, 2022Date of Patent: March 7, 2023Inventor: Erik Agazim
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Patent number: 11578959Abstract: The present invention discloses a bullet with a negative Poisson's ratio effect and a method of designing thereof. The bullet includes a cylindrical section of the bullet having a negative Poisson's ratio design, and a conical tail of the bullet and a tip of the bullet each with a matching design; the cylindrical section of the bullet is a tubular structure having periodically alternating transverse and vertical holes; the tubular structure includes a plurality of holes, with a center axis of one hole being axially perpendicular to a center axis of another adjacent hole, that is, the axis of each hole being structurally orthogonal to an adjacent hole; and the holes in rows and columns are periodically arranged into the tubular structure, which is a tubular structure having the negative Poisson's ratio effect.Type: GrantFiled: January 10, 2019Date of Patent: February 14, 2023Assignee: NANJING TECH UNIVERSITYInventors: Xin Ren, Chuanzhen Han, Shilong Wang, Xiangyu Zhang
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Patent number: 11578960Abstract: An inertial igniter for igniting a thermal battery, including: a base having a first projection; a striker mass rotatably connected to the base having a second projection, when the striker mass is rotated towards the base, the first projection impacts the second projection; a member having a first portion engaging with a second portion of the striker mass to restrict rotation of the striker mass unless a predetermined acceleration is experienced; a mass movable from a first position where an acceleration is less than the predetermined acceleration and a second position where the acceleration is greater than the predetermined acceleration to permit the first and second portions to come out of engagement; a spring for biasing the mass in the first position; and a rotation prevention member for permitting impact of the first and second projections when the predetermined acceleration is experienced and the mass moves to the second position.Type: GrantFiled: October 25, 2019Date of Patent: February 14, 2023Assignee: OMNITEK PARTNERS LLCInventor: Jahangir S Rastegar
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Patent number: 11570954Abstract: Provided is a rocket for artificial rainfall using an ejection hygroscopic flare, the rocket including: a rocket body configured to descend with a parachute after flight by thrust, and having a hygroscopic flare discharge outlet; a communication module installed in the rocket body, and configured to transmit and receive a launch command and an ejection command with a ground station; an ejection hygroscopic flare installed in the rocket body and filled with cloud seeds and a burning material therein; and a hygroscopic flare ejection device configured to separate and eject the ejection hygroscopic flare from an inside of the rocket body to an outside thereof.Type: GrantFiled: October 21, 2020Date of Patent: February 7, 2023Assignee: National Institute of Meteorological SciencesInventors: Ji Man Park, Woon Seon Jung, Joo Wan Cha, Soo Jong Kim, Kyoung Jin Woo, Sung Hoon Ryu
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Patent number: 11561075Abstract: The present invention relates to a firearm projectile capable of releasing a secondary payload mid-flight through a pyrotechnic timing mechanism. Once the firearm is fired, the powder in the casing pushes out the projectile as a typical round. In addition, the powder ignites the delay column. The formulation and amount of delay pyrotechnics determines the delay time. When the delay column is burned, the final portion ignites an expelling charge. The expelling charge builds pressure in the projectile casing and separates the base plug from the main projectile housing. The expelling assembly pushes out the secondary payload out the rear of the projectile. Although the payload exits the rear of the projectile at minimum velocity, the net velocity of the payload is still in the forward direction.Type: GrantFiled: December 13, 2019Date of Patent: January 24, 2023Assignee: The United States of America, as Represented by the Secretary of the NavyInventor: Lucas Allison
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Patent number: 11549788Abstract: A blast hole liner is provided having an outer sleeve and an elongate tubing located within the outer sleeve. The outer sleeve is provided with an open first end thereby forming an internal space, adapted to hold an explosive composition. The outer sleeve also has at least one compartment 5 formed in a second end. The elongate tubing is adapted to allow for the entry of compressed air to inflate the elongate tubing and thereby ensure straightening or untwisting of the outer sleeve.Type: GrantFiled: August 8, 2019Date of Patent: January 10, 2023Assignee: TROUPERDALE PTY LTDInventor: Michael Martin
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Patent number: 11530907Abstract: Embodiments are directed to direct impingement cook-off mitigation systems. As assembled, a munition fuzewell is torqued into the aft end of a munition. During a cook-off event, the expanding gases from the booster energetic will burn instead of detonating. The hot expanding booster gases are vented to the munition's main fill energetic causing the main fill energetic to burn concurrently with the booster energetic. The combined expanding gases from both the booster and main fill energetics are then vented through longitudinal vents.Type: GrantFiled: February 23, 2021Date of Patent: December 20, 2022Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Benjamin M. Blazek, Lee R. Hardt
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Patent number: 11519707Abstract: Embodiments employ venting features and damping components both inside and concentric to a fuzewell to improve munition fuze survivability. Damping components are selected based on their densities and stiffness properties. A shock damping liner with longitudinal grooves is affixed to an inner surface of the fuzewell and envelops the fuze. At least one shock damping collar constrains and attenuates shack experienced by the fuze. A shock damping ring is concentric about the outer surface of the fuzewell and attenuates shock, between the outermost munition system layer (the casing) and the fuzewell. Longitudinal vents in the fuzewell wall and radial apertures oriented transverse to the longitudinal vents are used for off-gassing. The venting and component orientation combination provides increased damping, resulting in impedance mismatches across multiple interface surfaces in the munition, which reduces shock vibrational pressures and stresses transferred to the fuze.Type: GrantFiled: February 23, 2021Date of Patent: December 6, 2022Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Benjamin M. Blazek, Lee R. Hardt
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Patent number: 11519706Abstract: Embodiments are directed to direct impingement cook-off mitigation systems. As assembled, a munition fuzewell is torqued into the aft end of a munition. During a cook-off event, the expanding gases from the booster energetic will burn instead of detonating. The hot expanding booster gases are vented to the munition's main fill energetic causing the main fill energetic to burn concurrently with the booster energetic. The combined expanding gases from both the booster and main fill energetics are then vented through longitudinal vents.Type: GrantFiled: April 22, 2021Date of Patent: December 6, 2022Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Benjamin M. Blazek, Lee R. Hardt
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Patent number: 11506465Abstract: Explosive devices may be formed from hollow members filled with explosive materials. The hollow members may be made of mating halves that are packed or loaded with explosive material prior to the mating halves being joined together. In some exemplary aspects, the hollow members are placed in fluid-filled containers such that the explosive reaction creates a wave of fluid that impacts a target. Components of the devices may be COTS items and items that may be manufacture with 3D printers.Type: GrantFiled: July 30, 2020Date of Patent: November 22, 2022Assignee: The United States of America as represented by the Secretary of the NavyInventors: Lee Foltz, Adam J. Pegouske, Daniel McCarthy, George R. Torres
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Patent number: 11493314Abstract: Disclosed is a cartridge case for various caliber ammunition that consists essentially of a powdered metal and/or powdered metal alloy that is formed into the cartridge case through an injection mold processing. Also disclosed is a method for forming a cartridge case, which may include use of Metal Injection Molding (“MIM”) processes to produce the cartridge case which retains a primer, propellant, and/or a bullet. The method can include metal injection molding an initial part, and also at least one of tapering and trimming the initial part to form the finished cartridge case. Further embodiments can include the use of Finite Element Method (FEM) analysis to develop an optimized MIM design.Type: GrantFiled: September 9, 2020Date of Patent: November 8, 2022Assignee: Concurrent Technologies CorporationInventors: Todd Skowron, Juan Valencia, Shawn Rhodes, William Brueggen
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Patent number: 11486680Abstract: One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end contacts the substantially cylindrical coupling element.Type: GrantFiled: April 18, 2019Date of Patent: November 1, 2022Assignee: True Velocity IP Holdings, LLCInventor: Lonnie Burrow
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Patent number: 11486683Abstract: A bullet having a front unit and a rear unit, the front unit adapted to house the rear unit is provided. The front unit has a fragmented section, a cavity wall section, and a separation ring. The separation ring being angled forward or rearward with respect to the center of the bullet or with respect to the outermost edge of the bullet and being disposed on the front unit between the fragmented section and the cavity wall section.Type: GrantFiled: April 6, 2021Date of Patent: November 1, 2022Inventor: Joseph Cziglenyi
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Patent number: 11473888Abstract: Spotter ammunition projectiles adapted to be fired from a firearm, methods for making spotter ammunition projectiles, and spotter ammunition cartridges including spotter ammunition projectiles are provided. In one example, a spotter ammunition projectile includes a projectile body section extending in a distal direction to a body distal end portion. A projectile ogive is coupled to the body distal end portion and has an outer ogive surface that tapers in the distal direction towards a shoulder. The projectile ogive includes a post that is disposed adjacent to the shoulder and that extends therefrom in the distal direction. An ogive nose cap is disposed adjacent to the shoulder and covers the post. The post and the ogive nose cap are cooperatively configured to define a cavity therebetween. A pyrotechnic spotter composition is disposed in the cavity.Type: GrantFiled: August 25, 2020Date of Patent: October 18, 2022Assignee: General Dynamics OTS—Canada Inc.Inventor: Eric Lafortune
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Patent number: 11473892Abstract: Described is a vehicle configured for the deposition of explosives in holes of open-pit exploration mines, wherein the vehicle is able to perform all seven steps carried out in the manual explosive deposition process, automatically, completely free of human intervention. Also described is a method of use of the aforementioned vehicle.Type: GrantFiled: October 16, 2017Date of Patent: October 18, 2022Assignee: VALE S.A.Inventors: Reginaldo de Andrade Santos, Emerson Sena Balbino, André Luiz da Costa Vieira, Marcelo Ribeiro Carlos, Lucas Sales Van Melis, Adriano Nogueira de Assis
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Patent number: 11473885Abstract: A compressive structural element including: an enclosure having a top, a bottom, and inner wall and an outer wall, a first cavity defined between the inner and outer walls and a second cavity defined by the inner wall; and a non-compressible material disposed in the first cavity; wherein the outer wall has at least a portion thereof inwardly shaped toward the first cavity and the inner wall has at least a portion outwardly shaped towards the first cavity such that a first compressive force acting on the top and/or bottom tending to compress the element by a first deflection causes an amplified second deflection, relative to the first deflection, of the inner and/or outer walls into the non-compressible material, thereby exerting a second compressive force against the non-compressible material, resulting in a resistance to the first deflection and the first compressive force tending to compress the element.Type: GrantFiled: May 6, 2019Date of Patent: October 18, 2022Assignee: OMNITEK PARTNERS LLCInventors: Thomas Spinelli, Jahangir S Rastegar
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Patent number: 11465207Abstract: Disclosed is a cartridge case for various caliber ammunition that consists essentially of a powdered metal and/or powdered metal alloy that is formed into the cartridge case through an injection mold processing. Also disclosed is a method for forming a cartridge case, which may include use of Metal Injection Molding (“MIM”) processes to produce the cartridge case which retains a primer, propellant, and/or a bullet. The method can include metal injection molding an initial part, and also at least one of tapering and trimming the initial part to form the finished cartridge case. Further embodiments can include the use of Finite Element Method (FEM) analysis to develop an optimized MIM design.Type: GrantFiled: June 28, 2017Date of Patent: October 11, 2022Assignee: Concurrent Technologies CorporationInventors: Todd Skowron, Juan Valencia, Shawn Rhodes, William Brueggen
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Patent number: 11460277Abstract: The invention relates to an igniter unit for a munition, comprising a housing and at least one pyrotechnic charge, the igniter unit comprising a control and communication device arranged in the housing and at least one interface connected to the control and communication unit and arranged in the housing.Type: GrantFiled: September 30, 2019Date of Patent: October 4, 2022Assignee: Rheinmetall Waffe Munition GmbHInventors: Vikorn Kadavanich, Karl-Friedrich Giebel
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Patent number: 11454482Abstract: An explosive detonating system comprises connectable components to connect/disconnect a pathway that ignites an explosion. A firing actuator activates primers (percussion caps). An adapter connects the firing actuator to shock tube and channels the ignition force into the shock tube. A cap box houses blasting caps coupled to the end of the shock tube. A priming well is coupled to the cap box/blasting caps and the detonating cord. When the firing actuator is initiated, the percussion caps ignite, sending an explosive wave into the adapter, which channels the wave into the shock tube and ignites the shock tube. The explosive wave travels through the shock tube and activates the blasting caps, which activate the detonating cord in the priming well. The explosive is placed in a location to provide a desired explosive effect. For example, the system may be employed as a system to breach structures or other applications.Type: GrantFiled: August 24, 2018Date of Patent: September 27, 2022Assignee: River Front Services, Inc.Inventors: Anthony Miles Brown, Toby Justin Harvey, Donald Ray Brown, Thomas Jeffrey Harvey
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Patent number: 11454479Abstract: The present invention provides a subsonic ammunition comprising: a primer insert comprises a top surface opposite a bottom surface, a substantially cylindrical coupling element extending away from the bottom surface forming, a primer recess in the top surface that extends toward the bottom surface, a primer flash aperture positioned in the primer recess to extend through the bottom surface, a flash aperture groove in the primer recess that extends circumferentially about the primer flash aperture, and a flange that extends circumferentially about an outer edge of the top surface; a polymeric casing body comprising a generally cylindrical hollow polymer body molded over the substantially cylindrical coupling element, into the primer flash aperture and into the flash aperture groove to form a flash hole and extending toward a mid-body coupling joint; a nose comprising a projectile aperture that extends to a neck connected to a shoulder that transitions from the projectile aperture to a nose coupler, wherein theType: GrantFiled: November 5, 2020Date of Patent: September 27, 2022Assignee: TRUE VELOCITY IP HOLDINGS, LLCInventor: Lonnie Burrow