Patents Examined by Lulit Semunegus
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Patent number: 6295930Abstract: A circuit breaker includes, a cylindrical portion having a gunpowder and a exploding unit for exploding the gunpowder by application of electric power to the gunpowder, the cylindrical portion being provided with an opening at at least one end; a base material securing the cylindrical portion, at least the surface of which is made of insulating material; a conductor fixed to the base material and having a break portion located at a position opposite to the opening of the cylindrical portion, the break portion being broken by explosive force of the gunpowder; a first metallic cover portion covering the cylindrical portion and the break portion; and a second metallic cover portion covering the base material from an opposite side to the cylindrical portion, wherein the first and second cover portions are fixed to the base material by directly connecting the first and second cover portions each other.Type: GrantFiled: December 29, 1998Date of Patent: October 2, 2001Assignees: Harness System Technologies Research, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Nippon Kayaku Kabushiki KaishaInventors: Masahiro Kume, Motonori Kido, Yoshiyuki Miyazaki, Hideaki Toyama, Akio Matsumaru, Jun Yasukuni, Kenjiro Nishida, Junya Amano, Ayumu Kimura, Hiroshi Hori, Mitsuru Tanigawa
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Patent number: 6295932Abstract: An electronic safe arm & fire (ESAF) device has a common module and a pair of programmable devices that are readily configurable to different missile types. The ESAF device has a first static arming switch that is controlled by the first programmable device and a second static arming switch that is controlled by the second programmable device. The ESAF device has a firing module that has an exploding foil initiator. The common module and the firing module can be configured as a standalone module in close proximity to a warhead or can be integrated into a warhead. The common module has some inputs that are used by all the missiles in a group for the same signals; some inputs that are used by all the missiles, but for different signals; and, some inputs that are used by some of the missile, but not by all of the missiles. The common module has an input port for a separation signal, a communications port for a fuze data signal, and an input port for a signal that can be used to determine safe separation.Type: GrantFiled: March 15, 1999Date of Patent: October 2, 2001Assignee: Lockheed Martin CorporationInventor: James P. Kane, III
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Patent number: 6293201Abstract: A warhead has polar imbiber masses containing a complexed energetic composition of a cyclodextrin nitrate, a nitrate ester plasticizer, bismuth subsalicylate and a stabilizer that is dispersed into a cloud prior to target impact.Type: GrantFiled: November 18, 1999Date of Patent: September 25, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventor: John P. Consaga
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Patent number: 6283032Abstract: A smoke-generating projectile has a decomposable effective mass, the mass including a quick-burning deception component for generating spontaneous smoke, and a slow-burning concealment component for generating persistent smoke. The projectile includes an igniter, an ejection charge and/or ignition decomposition charge and at least one ignition delay device. The projectile is constructed so that the energy of decomposition of at least one of the effective mass components is constrained in a radial direction. The ejection charge and/or the ignition decomposition charge, as well as at least one ignition delay device, is installed in the effective mass.Type: GrantFiled: July 15, 1999Date of Patent: September 4, 2001Assignee: Buck Neue Technologien GmbHInventor: Norbert Wardecki
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Patent number: 6283036Abstract: This invention involves a hard target penetrating warhead designed to produce a variable explosive discharge. A standard warhead casing is divided into several compartments with each compartment separated by a shock-absorbing shield. Explosive fill in contained within each compartment. The shock-absorbing shield inhibits the dynamic shock produced by detonating a compartment, thus preventing sympathetic detonation of adjoining compartments. As a result, the size of an explosive blast is controlled by detonating the explosive fill, in a set number of compartments. Each compartment also contains an igniter element, which initiates a slow burn of undetonated explosive fill.Type: GrantFiled: March 20, 2000Date of Patent: September 4, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventor: Terrence Lane Munsinger
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Patent number: 6283035Abstract: Reduced propellant ammunition cartridges, particularly subsonic cartridges for clandestine use of weapons which normally fire supersonic projectiles, include a length of pliable tubing that has an outside diameter just slightly smaller than the inside diameter of the cartridge neck portion that holds the projectile with such tubing having a length that allows it to snugly fit between the base of the cartridge case and the cartridge neck portion. Such a sized tube is inserted through the neck portion and then its distal end is expanded below the cartridge neck portion to be held captive in the cartridge case. The propellant charge is contained inside the pliable tube by the rear end portion of the casing at its distal end and the projectile at its proximal end.Type: GrantFiled: April 6, 2000Date of Patent: September 4, 2001Assignee: Knight Armamant CompanyInventors: Douglas D. Olson, Michael G. Adkins
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Patent number: 6279480Abstract: A firing pin assembly for mechanically igniting a warhead detonator of a projectile by being accelerated in a forward direction by inertia upon impact, includes a firing pin having a rearward firing pin part and a frontal firing pin part arranged in series with the rearward firing pin part as viewed in the forward direction. The assembly further has a firing pin spring urging the firing pin in a direction opposite to the forward direction, and a mechanical device positioned between the rearward firing pin part and the frontal firing pin part. The mechanical device includes a transmission arrangement for transmitting a forward motion of the rearward firing pin part to the frontal firing pin part with a stepped up transmission ratio whereby a forward motion of the rearward firing pin part through a first distance results in a forward motion of the frontal firing pin part, against the force of the firing pin spring, through a second distance which is greater than the first distance.Type: GrantFiled: October 21, 1999Date of Patent: August 28, 2001Assignee: Rheinmetall W & M GmbHInventor: Karlheinz Roosmann
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Patent number: 6279478Abstract: A fuzing system for non-spinning or substantially non-spinning weapons is implemented by means of wide angle optics providing at least forward-hemisphere coverage, an array of infrared detectors and a microprocessor for image and data processing, aim-point selection, directional-warhead aiming and skewed-cone fuzing. The skewed-cone fuzing has a generatrix which is the vector sum of missile velocity, warhead velocity and the negative of target velocity.Type: GrantFiled: March 27, 1998Date of Patent: August 28, 2001Inventors: Hayden N. Ringer, Abraham Shrekenhamer
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Patent number: 6279479Abstract: To fire a firing cap of a vehicle occupant protection system of a motor vehicle, at least two firing capacitors are provided which initially remain connected in parallel at the start of a firing process and are connected in series after expiry of a time interval from the start of the firing process. It is ensured that a firing current which flows across the firing cap is always of a sufficient magnitude and at the same time initial power losses are avoided.Type: GrantFiled: May 11, 2000Date of Patent: August 28, 2001Assignee: Siemens AktiengesellschaftInventor: Stefan Hermann
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Patent number: 6272995Abstract: A high precision electro-mechanical fuze mechanism for a munition such as a hand grenade. The fuze mechanism includes an electromagnetic signal generator having an armature, a permanent magnet, a coil and a magnetic impulse generator (MIG) member. The armature is preloaded during assembly through the use of a spring. Releasing an actuating lever of the grenade allows the armature to begin spinning and to dissipate the energy stored by the spring. This causes a current to be electromagnetically generated in the coil, which is transmitted to an electronic control circuit in the fuze mechanism. The electronic control circuit implements two time delays from two separate timers which each must time out before the control circuit can send an electric firing signal to an electric detonator. Movement of the armature also causes a simultaneous movement of a rotor, which moves a stab detonator into a position closely adjacent the electric detonator.Type: GrantFiled: September 14, 1999Date of Patent: August 14, 2001Assignee: KDI Precision Products, Inc.Inventors: William Marc Schmidt, James Arthur Hewlett, Patrick Dwayne McGregor, Ezra Stearns Waller, Donald Robert Helton
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Patent number: 6269748Abstract: A device for retaining an object and then releasing that object upon actuation, the device utilizing an actuator that resists less force than that exerted by said object, and is adapted for use with a V-band clamp.Type: GrantFiled: June 18, 1999Date of Patent: August 7, 2001Assignee: NEA Electronics, Inc.Inventors: Edward Rudoy, Larry Leroy McCormick, Edwin E. Vega, Craig W. Courtney
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Patent number: 6269746Abstract: A disarm mechanism to maintain a safe work area for individuals that may be working in such area which allows for the remote disarming of an article of explosive equipment by remotely shifting a switch of an explosive circuit to an off or non-operative position. Said switch is connected in series with a detonator and along with an explosive charge housed within an extinguishant container from which extinguishant would normally be dispelled when the explosive circuit is activated. After switching, a lock-out device is secured to the disarm mechanism such that the switch cannot be shifted to the on or operative position without removal of such lockout. Visual indicia is provided to alert the operator as to the position of the control switch.Type: GrantFiled: November 29, 1999Date of Patent: August 7, 2001Assignee: Advanced Innovation, Inc.Inventor: Theodore E. Larsen
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Patent number: 6260483Abstract: In a radio remote blasting system, a radio receiver triggers a blocking oscillator which generates a high voltage output. A rectifier rectifies the high voltage output and charges a capacitor, which is coupled to a plasma arc generator to apply the capacitor voltage to the plasma arc generator and generate a high voltage arc in the arc generator. The end of a shock tube is received in a port in the arc generator and the arc produced in the arc generator will ignite explosive material in the shock tube. The resulting explosion will travel from the point of ignition to an explosive device which will then be detonated.Type: GrantFiled: April 22, 1999Date of Patent: July 17, 2001Inventor: Richard N. Snyder
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Patent number: 6256915Abstract: In-chamber cartridge indicator for pistols comprises an indicator (1) lodged in a respective groove (3) of extractor (1) and pivoted by pin (4) so that, when the respective ribs (12, 11) touch the cartridge breech (16) within the chamber, the synchronized movement thereof is prevented and the indicator (7) projects beyond the bolt (2), thereby to provide a visual and tactile indication of the weapon's loaded condition.Type: GrantFiled: December 28, 1999Date of Patent: July 10, 2001Assignee: Forjas Taurus S/AInventor: Nilton da Silveira
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Patent number: 6253679Abstract: A fuze is enabled, armed, and fired while indicating its status to remote command/receiver stations so that interconnected line charges and other ordnance items can be detonated with increased safety and reliability from a safe man-weapon separation distance. The fuze is responsive to remotely transmitted magneto-inductive command signals in the extremely low frequency (ELF) to very low frequency (VLF) range to change its status and to transmit magneto-inductive status signals in the ELF to VLF range confirming its status to at least one of the remote stations. Transmission and reception of magneto-inductive signals in the ELF to VLF range allow for a unique communication method that provides safe and reliable communication suitable to effect fuzing of explosive devices on the beach through seawater, air, earth, buildings, vegetation and sediment or any combination of these conditions.Type: GrantFiled: January 5, 1999Date of Patent: July 3, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert Woodall, Felipe Garcia, John Sojdehei
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Patent number: 6250227Abstract: A provisional linking and pyrotechnic separation device is placed between two assemblies made from nonmetallic materials such as composite materials. Prior to separation, parts belonging to each of the two assemblies are fixed to one another, either by direct bonding of the parts to one another, or by bonding a linking part to the parts. The device includes a pyrotechnic expansion tube acting directly on one of the parts to be separated. A precise, clean and well localized separation of the assemblies consequently takes place during the use or operation of the pyrotechnic expansion tube.Type: GrantFiled: June 2, 1999Date of Patent: June 26, 2001Assignee: Aerospatiale Societe Nationale IndustrielleInventor: Cédric Salort
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Patent number: 6250226Abstract: The present invention relates to a non-lethal ammunition comprising a projectile (100) including: a body (110) which houses a container (130) adapted to generate a pressurized gas, and a nosecone (140) associated with a striker (154) adapted to enable an active agent to be dispersed on impact, wherein the body (110) is placed in a case (50, 60) and the container (130) or the striker is disposed on a slide (120) guided to slide in the body (110); means (117, 118, 119) are provided to prevent movement of the slide (120) before the body (110) leaves the case (50, 60) to prevent movement towards each other of the striker (154) and the container (130), and the body (110) of the projectile (100) comprises a plurality of orifices (170) disposed around its axis to enable the active agent to be dispersed omnidirectionally.Type: GrantFiled: May 24, 1999Date of Patent: June 26, 2001Assignee: Etienne Lacroix Tous Artifices S.A.Inventors: Geneviève Leichter, Michel Castarede, Bruno Gromek
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Patent number: 6247412Abstract: An electric contact assembly in combination with a cartridge to be fired from a weapon barrel. The cartridge has a cartridge case including a metal bottom having an externally exposed outer face; and an electronic unit disposed in the cartridge case. The electric contact assembly includes a first contact arrangement for establishing an electric connection between the electronic unit and an evaluating and control apparatus situated externally of the cartridge. The first contact arrangement includes a contact ring disposed in the cartridge bottom and surrounding the longitudinal axis of the cartridge. The contact ring has an outer face which is approximately flush with the outer face of the cartridge bottom. An insulation electrically insulates the contact ring from cartridge bottom. A second contact arrangement establishes an electric connection between the electronic unit and the evaluating and control apparatus.Type: GrantFiled: November 19, 1999Date of Patent: June 19, 2001Assignee: TZN Forschungs- und Entwicklungs-zentrumInventor: Karl-Ulrich Vornfett
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Patent number: 6247411Abstract: An electric contact assembly in combination with a cartridge to be fired from a weapon barrel. The cartridge has a cartridge case including a metal bottom having an externally exposed outer face; and an electronic unit disposed in the cartridge case. The electric contact assembly includes a contact arrangement for establishing an electric connection between the electronic unit and an evaluating and control apparatus situated externally of the cartridge. The contact arrangement includes a contact ring disposed in the case bottom and surrounds the longitudinal axis of the cartridge. The contact ring has an outer face which is approximately flush with the outer face of the case bottom. An insulation electrically insulates the contact ring from the case bottom. A magnetic field sensor emits a signal upon closing a breechblock of the weapon in which the cartridge is positioned. A switch is connected between the electronic unit and the contact ring.Type: GrantFiled: November 19, 1999Date of Patent: June 19, 2001Assignee: TZN Forschungs- und EntwicklungszentrumInventor: Karl-Ulrich Vornfett
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Patent number: 6237495Abstract: A self destructing impact fuse including a cylindrical firing pin having a hollow centrifugal chamber for holding a number of spheres and a number of radial openings on its surface for exposing portions of the spheres when the chamber is spun. At one end of the chamber is a spring for exerting compression force along the longitudinal axis of the chamber and at the other end is a self-destructing (SD) firing pin for striking the detonator. A centrifugal lock having a pivot offset from the longitudinal axis holds the chamber in place by mating with a groove on the surface of the centrifugal chamber. The cylindrical firing pin is seated concentrically within a frame and disposed over an escapement assembly featuring the detonator. The detonator is rotated into alignment with the SD firing pin after the projectile, incorporating the fuse, travels the minimum tactical distance. The frame is further coupled with a base, which features a point detonation (PD) firing pin for striking the detonator.Type: GrantFiled: November 24, 1999Date of Patent: May 29, 2001Assignee: Chartered Ammunition Industries PTE LTDInventors: AW Cheng Hok, EE Guan Soon, Tan Chian Chiow