With Secondary Shells Patents (Class 102/489)
  • Patent number: 5623113
    Abstract: A pyrotechnic device for launching at least one projectile includes, in a longitudinal launcher tube closed at the rear by a rear wall, a closure member expelled when subjected to a longitudinal force exceeding a predetermined threshold and retaining at least one projectile on opposite sides of which are a front chamber and a rear chamber in which an impulse cartridge builds up a gas pressure simultaneously. In this way a plurality of projectiles can be fired sequentially by means of a single impulse cartridge.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: April 22, 1997
    Assignee: Etienne Lacroix Tous Artifices S.A.
    Inventor: Guy Valembois
  • Patent number: 5619010
    Abstract: An apparatus and method for separating a warhead to be delivered to a target from a carrier missile flying at high speed in a first aerodynamic trajectory include a rocket motor attached to the warhead in the carrier missile and an ejection tube positioned obliquely in the carrier missile rearwardly and upwardly with respect to a longitudinal axis of the carrier missile from which the warhead is ejected by the rocket motor into a second aerodynamic trajectory having a substantially higher maximum flight altitude then the first trajectory. The warhead is separated from the rocket motor after ejection by aerodynamic forces created from the angle of the ejection of the warhead from the carrier missile and the relative flight velocities of the warhead and the carrier missile. The aerodynamic forces act on a connection between the rocket motor and the warhead, whereby the motor and warhead upon the burnout of the motor follow separate forward trajectories upon separation.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: April 8, 1997
    Assignee: Bofors AB
    Inventors: Anders Holm, Jan Axinger
  • Patent number: 5605308
    Abstract: A dispenser is disclosed for ejecting space vehicles from a launch vehicle. The dispenser includes an inverted outer truncated cone and an upright inner truncated cone positioned within the outer cone and connected thereto at lower end portions thereof. The cones are mounted on the launch vehicle. The dispenser also includes a mounting platform secured to the outer cone and inner cone at upper end portions thereof. Hinges detachably pivotally mount the space vehicles on the mounting platform, and separation nuts and bolts releasably secure the vehicles to the platform. Spring actuators mounted in the platform provide pivoting of all or any individual vehicle relative to the mounting platform resulting in separation and ejection of the vehicles from the launch vehicle.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: February 25, 1997
    Assignee: McDonnell Douglas Corp.
    Inventors: Gary Quan, John A. Carlson, Alan H. Wilkins, Leo Rosadiuk, Sam Carter, George Budris
  • Patent number: 5561262
    Abstract: A projectile assembly includes a spin-stabilized carrier projectile having a carrier casing and a base at one end of the casing; and a sub-ammunition assembly composed of a plurality of sub-ammunition components stacked to form a column. One of the components is an end component adjoining the base. A component surface of the end component is oriented towards and is in engagement with the base surface. At least two of the components are sub-ammunition projectiles. An arrangement maintains a frictional lock between the base surface and the component surface of the end component. According to the arrangement a portion of the base surface and a portion of the component surface of the end component have high coefficients of friction.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: October 1, 1996
    Assignee: Rheinmetall Industrie GmbH
    Inventors: Volker Bartels, Klaus D. Karius
  • Patent number: 5535679
    Abstract: A plurality of objects is deployed in generally radial directions at a low velocity in order to achieve a predetermined pattern of the deployed objects. The device has an inner wall member (20), an annular body (43) of low velocity explosive, at least a first plurality of objects (56) in a first annular array (51) and a second plurality of objects (56) in a second annular array (52) positioned coaxially with and exteriorly of the annular body (43) of low velocity explosive, the arrays being positioned at different locations along the length of the annular body (43) of low velocity explosive such that the objects in each array are provided with an amount of energy different from that provided to each of the objects in the adjacent array. Each of the objects (56) has a shape which minimizes aerodynamically induced deviations in the path of the object during deployment, a mass of at least 50 grams, and a density of at least 15 g/cc.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: July 16, 1996
    Assignee: Loral Vought Systems Corporation
    Inventor: Gerald G. Craddock
  • Patent number: 5473988
    Abstract: A wedging device includes bars evenly distributed at an angle. Each bar has a bearing surface designed to come into contact with an internal surface of the envelope and two holding surfaces designed to come into contact with at least two adjacent sub-munitions. Each bar is divided into at least two half-bars that contact one another by at least one slanted guiding surface. By relative sliding of each half-bar, the two holding surfaces forced apart in such a way as to eliminate any radial give in the sub-munition assembly within the envelope.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: December 12, 1995
    Assignee: Giat Industries
    Inventor: Dominique Dion
  • Patent number: 5445078
    Abstract: Payload delivery of a payload compartment containing a delivery device is initiated by a suitable fusing device which ejects the delivery device from a payload section by firing a gas generator in the section base to propel the delivery device forwardly, thereby shearing retaining pins and ejecting the delivery device from the payload section. The fusing device concurrently fires a time-delayed mechanism leading to a second gas generator in the center of the delivery device. The gas generator ignites after the chaff dispenser is clear of the payload section. The ignition reaction pneumatically blows chaff (e.g. metallized dipoles) out of wrapped bundles, leaving the wrapper bonded to the delivery device and disseminating the chaff in a cloud of hot gas and air turbulently mixed in the wind shear occurring in the wake of the delivery device. The delivery device survives the dispensing and dissemination processes without losing structural integrity. Thus, no harmful debris is ejected into the chaff cloud.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: August 29, 1995
    Assignee: Universal Propulsion Company, Inc.
    Inventor: Frank A. Marion
  • Patent number: 5431106
    Abstract: Daughter missiles 11 are catapulted forward from a mother missile 10 when a rocket motor 12 of the mother no longer accelerates the missiles. A catapult force generated at a piston head 43 by the pressure of gas from the rocket motor on rearward facing surfaces 26 of the daughters is large enough to shear pins 34 holding the daughters to the mother, but only when the forces of reaction of the daughters 11 on the piston 43, due to acceleration, have fallen off. Preferably the daughters are thrown outwardly at release, most preferably by axial spinning of the structure of the mother to which they are mounted.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: July 11, 1995
    Assignee: Shorts Missile Systems Limited
    Inventors: Albert Dunn, Richard S. Ranson
  • Patent number: 5423264
    Abstract: Pyrotechnic bomb comprising a body (1) containing a burst charge (2) and flare charges (6) whose dispersion and ignition are ensured during the burst, characterized in that the said body (1) is made at least partially from a pyrotechnic composition.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: June 13, 1995
    Assignee: Ruggieri
    Inventors: Jean P. Siegler, Jean-Pierre Chastel
  • Patent number: 5398615
    Abstract: A method of separating from one another subcombat units transported by a rotationally-stabilized carrier body to a predetermined target area. The method comprises the steps of:ejecting the subcombat units and a plurality of masses or bodies from the carrier body;utilizing rotational energy from the rotationally-stabilized carrier body to generate axially directed separation forces in the masses or bodies, the separation forces acting concentrically in relation to a common center axis of the carrier body; andseparating the subcombat units from one another so that they spread out and each cover a predetermined portion of a target area by utilizing the separation forces in the masses or bodies to cause the separation of the subcombat units after their ejection from the carrier body.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: March 21, 1995
    Assignee: Bofors AB
    Inventors: Stig Johnsson, Lars Paulsson, Anders Holm, Sten Johansson
  • Patent number: 5363768
    Abstract: A propellant system is disclosed which includes a propellant applied to at least one surface of a substrate which is in the form of a strip. The propellant strip is adhesively attached to itself in a configuration which conceals propellant within the configuration and which allows the attached strip to peel away from itself under applied forces thereby resulting in smooth and continuous exposure of propellant for burning. The system is directed to use with ejectable projectiles which are slidably disposed within a canister or casing. The propellant system is interconnected between the projectile and the canister which houses the projectile. The propellant is urged to peel, and thus expose propellant for burning, as the projectile is ejected from the canister.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: November 15, 1994
    Assignee: Thiokol Corporation
    Inventors: Mark A. Solberg, James A. Hartwell
  • Patent number: 5317975
    Abstract: The technical field of the invention relates to devices providing for the ejection of a plurality of payload elements from the casing of a carrier shell. The ejection device according to the invention includes a pyrotechnic composition placed in a head and intended to create, after ignition, a gas pressure that pushes a piston over a short distance so as to displace towards a base a moving assemblage having a pusher plate and payload elements, and to eject the base, the piston then being stopped relative to the head and having an orifice which allows the gases to pass towards the moving assemblage so as to push the latter. The device includes braking means disposed between at least a part of the moving assemblage and the shell casing. This invention is applicable to mine-dispersing carrier shells.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: June 7, 1994
    Assignee: Giat Industries
    Inventors: Gerard Sauvestre, Philip Fouqueau, Regis Aumasson, Dominique Dion, Christophe Arches
  • Patent number: 5315933
    Abstract: A method of separating a sub-combat unit from a protective canister. The method comprises the steps of discharging the sub-combat unit from the protective canister by causing a displacement of a driving sabot within the protective canister. The driving sabot is displaced by an elevated gas pressure generated by the combustion of a gas-generating pyrotechnical charge. The displacement of the sabot imparts a trajectory to the sub-combat unit. The displaceable driving sabot is prevented, by arrest means interconnected between the driving sabot and the canister, from accompanying the sub-combat unit in its new trajectory. A division of the protective canister into a plurality of parts is caused. The division ensures a change in at least one of the trajectory and the velocity of the parts of the canister.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: May 31, 1994
    Assignee: Bofors AB
    Inventors: Lars Paulsson, Lennart Eriksson
  • Patent number: 5313890
    Abstract: A fragmentation warhead device has a fabric liner woven from high-strength fibers located between the explosive charge and the fragments. The liner has a maximum diameter larger than that of the overall warhead, and is compressed to fit closely around the explosive charge prior to detonation by forming one or more longitudinal folds or pleats in the fabric. The fragments are retained against the outer surface of the sleeve prior to detonation by a suitable outer enclosure, and may be located between adjacent pleats in the fabric. On detonation, the sleeve expands to contain the gases produced by the explosion for an extended period of time.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: May 24, 1994
    Assignee: Hughes Missile Systems Company
    Inventor: Jaime H. Cuadros
  • Patent number: 5301614
    Abstract: Submunition is transported by a carrier to a target area and launched there, whereupon it covers a preset distance at a constant altitude at an angle to the flight axis of the carrier. The submunition has a target sensor and a payload, and is equipped with an altimeter as well as a circuit to evaluate the altimeter readings, and with at least one altitude/roll rudder controllable by this circuit.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 12, 1994
    Assignee: Messerschmitt-Boelkow-Blohm AG
    Inventor: Ulrich Rieger
  • Patent number: 5299503
    Abstract: The invention relates to a shell, the base of which acts as the parachute can of a sub-munition. The shell contains sub-munitions stacked one behind the other and is closed at the rear by a base. The submunitions are each equipped with a parachute and a can containing the folded parachute, the separation of each sub-munition from its can permitting the deployment of the parachute. The can of the sub-munition situated at the rear of the shell is constituted by the base of the shell.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: April 5, 1994
    Assignee: Thomson-Brandt Armements
    Inventors: Jean-Pierre Frehaut, Pascal Laurend
  • Patent number: 5287810
    Abstract: The invention relates to carrier shells which can eject a payload in flight. A carrier shell for transporting a payload includes a body closed at one of its ends by a base and at the other by a head, inside of which is placed a pyrotechnic composition for generating gases intended to act on a piston at the time the payload is ejected. The shell includes an attachment between the piston and the shell after ejection of the payload. This invention is applicable to mine-dispersing carrier shells.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: February 22, 1994
    Assignee: Giat Industries
    Inventors: Regis Aumasson, Dominique Dion
  • Patent number: 5277116
    Abstract: A sub-combat unit is arranged to be separated from a flying body over a target area, and includes a warhead, a target detector and two diametrically disposed carrier surfaces, each connected to a carrier arm and pivotally disposed about its own shaft located in a plane which is normal to the line of symmetry of the warhead and pivotable from a collapsed position in which the carrier arms and carrier surfaces connect to the circumferencial surface of the sub-combat unit, and to a position opened at 90.degree. at which both of the carrier surfaces form a retarding area for the fall velocity of the sub-combat unit and to impart to the sub-combat unit a rotation for scanning the target area in a helical pattern during the fall of the sub-combat unit towards the target area.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: January 11, 1994
    Assignee: Bofors AB
    Inventors: Jan Axinger, Peter Engman
  • Patent number: 5253588
    Abstract: A device is provided for reducing the rate of rotation of a spinning submunition unit having a tail end provided with a deployable braking device, from a time after the submunition unit is ejected from a spin stabilized carrier projectile until the braking device is deployed. The device includes a plurality of bands arranged to form a star-shaped symmetrical band structure for placement around the braking device. Each of the bands has a free end provided with a wind pocket.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: October 19, 1993
    Assignee: Rheinmetall GmbH
    Inventors: Karl-Heinz Vogt, Heinz Olmscheid
  • Patent number: 5253587
    Abstract: This device concerns missiles and in particular those made up of a payload stage in the form of a sub-munitions cargo-container and a propulsion stage. It is intended for the separation and aerodynamic braking of the propulsion stage at the end of its operation so that the sub-munitions can be released without the risk of hitting it. It includes attachment by fitting and locking by shear screws of the two parts of the missile, an inflatable bag arranged in an annular housing, a mobile piston used to separate the two parts of the missile, an initiatable gas generator driving the mobile piston then inflating the bag, means of initiating the gas generator consisting of a primer and firing pin and sensitive to a drop in pressure of the gases in the propulsion stage.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: October 19, 1993
    Assignee: Thomson-Brandt Armements
    Inventors: Rene Thouron, Pascal Herrero
  • Patent number: 5251562
    Abstract: A device with a stabilizing ribbon fastened to the rear of the body of a bomblet includes a first loop of ribbon with a relatively long lengthwise dimension and a second loop of ribbon with a relatively short lengthwise dimension. The two loops are fastened to the same point on the rear of the body and are rotationally integral with each other. The device improves the deployment of the stabilizing ribbon and the aerodynamic stabilizing and braking of a bomblet.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: October 12, 1993
    Assignee: Giat Industries
    Inventors: Patrice H. Chemiere, Jean-Paul A. Dupuy
  • Patent number: 5245927
    Abstract: An unmanned air vehicle system which is intended for launch from a platform such as an aircraft or a ship and to follow other than a ballistic trajectory includes a pair of substantially similar air vehicles in a tandem relationship. A unitary tubular airframe is provided coextensive with both air vehicles. The nose of a second air vehicle is nested in the tail member of a first air vehicle. A rocket booster is mounted in the tail of the second air vehicle and ignited for launch of both air vehicles as a unit. Thereafter, a pyrotechnic separating mechanism is actuated for bisecting the tubular airframe intermediate the tail member of the first air vehicle and the nose of the second air vehicle. Following separation, each air vehicle has a gas turbine engine which is ignited for powering its associated air vehicle to its destination.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: September 21, 1993
    Assignee: Northrop Corporation
    Inventor: Richard L. Ranes
  • Patent number: 5243917
    Abstract: A projection for dispersing a pyrotechnic charge (10) is described. It comprises a first and a second pressure chamber (7,9) with a throttled gas connection (16) between them. A piston (8) expells the charge (10) out of its casing (2) when the gas pressure in the second pressure chamber (9) reaches a predetermined level. The projectile is characterized particularly by a third pressure chamber (18) in gas connection with the first pressure chamber (7) in the first piston (8). A second piston (20) provided with a striking pin (22) for activating an igniting element (11) for igniting the charge (10) is movable in the first piston (8). The second piston (20) is detended against movement by a first locking element (24) until this is released by the casing (2).
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: September 14, 1993
    Inventor: Sven Komstadius
  • Patent number: 5239927
    Abstract: A deceleration device for a submunition unit includes a cartridge releasably attached to the submunition unit. A releasable package including at least one pocket is disposed in the cartridge and is connected to the cartridge by a packaging line. An auxiliary parachute and a rotation parachute are disposed in the cartridge, with at least the rotation parachute being accommodated in the at least one pocket of the releasable package and the auxiliary parachute being disposed in a pocket separate from the at least one pocket. The auxiliary parachute is connected to the cartridge and the rotation parachute is connected to the submunition unit. A deployment mechanism causes the auxiliary parachute to be deployed in advance of the rotation parachute after the cartridge is released from the submunition unit and the rotation parachute to be deployed after the cartridge is decelerated by the auxiliary parachute for decelerating the submunition unit.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: August 31, 1993
    Assignee: Rheinmetall GmbH
    Inventors: Gunter Frye, Karl-Heinz Vogt, Volker Bartels
  • Patent number: 5237925
    Abstract: A deceleration element is provided for attachment to a tail end of a submunition unit for deployment when the submunition unit is ejected from a spin stabilized carrier projectile for reducing velocity and spin of the submunition unit. The deceleration element includes two approximately circular, air-tight, planar textile fabric layers of essentially the same size having a diameter exceeding the diameter of the submunition unit and circumferentially sewn together to form an inflatable interior between the two fabric layers. The fabric layer disposed closest to the tail end of the submunition unit is clamped by fasteners to the tail end of the submunition unit and has a front side facing the tail end of the submunition unit for encountering air when the deceleration unit is deployed. At least four air capture pockets are disposed at the front side of the one fabric layer and are distributed at regular intervals in a circumferential direction.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: August 24, 1993
    Assignee: Rheinmetall GmbH
    Inventors: Karl-Heinz Vogt, Heinz Olmscheid
  • Patent number: 5235128
    Abstract: This invention provides provides a separable nosecap for the forward end of a homing torpedo, the nosecap and torpedo comprising a missile that is launched into the atmosphere for a ballistic trajectory to a distant underwater target. The nosecap comprises a nosecap shell having a volume of rigid cushioning foam material within its interior space defining a cavity into which is mounted a pneumatic apparatus including a flexible inflatable sleeve for forcefully disengaging the nosecap from the torpedo after the missile has entered the water environment. The inflatable sleeve engages the forward end of the torpedo and, upon inflation and axial extension, the sleeve disengages the nosecap from its mounting to the torpedo such that a homing mechanism of the torpedo may guide it to the intended target.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: August 10, 1993
    Assignee: Loral Corporation
    Inventors: Dallas M. Hardesty, Ernest Knaus
  • Patent number: 5233126
    Abstract: A deceleration device for a submunition unit ejectable from a spin stabilized carrier projectile includes a deployable deceleration element. The deceleration element is packaged in textile package including an essentially circular disc, at least three straps connected and arranged radially to the disc, with each strap having a free end and provided with a loop and a closing line received through the loops for pulling the loops together to close the package about the deceleration element. An activation line is connected to the closing line and held by the textile package for releasing the closing line for allowing the package to open for deployment of the deceleration element after the activation line is released from the package by being stretched in a controlled manner.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: August 3, 1993
    Assignee: Rheinmetall GmbH
    Inventors: Karl-Heinz Vogt, Heinz Olmscheid, Klaus-Dietmar Karius
  • Patent number: 5233127
    Abstract: The technical field of the invention is that of carrier artillery shells. The carrier shell according to the invention is intended to transport at least one payload and contains a casing on which is placed at least one spinner band, the casing being closed at one of its ends by a base and at the other by a head inside of which is placed a gas-generating pyrotechnic composition intended to act on a piston at the time the payload is ejected; the shell being characterized in that the means by which the payload is spun by the casing includes lugs provided on an extension of the head and which interact with notches provided on an upper face of the piston, as well as means to cause the piston and the payload itself to spin together. This invention is applicable to mine-dispersing shells.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: August 3, 1993
    Assignee: Giat Industries
    Inventors: Gerard Sauvestre, Regis Aumasson, Dominique Dion
  • Patent number: 5210372
    Abstract: An arrangement for ejecting objects from a projectile, includes a hollow projectile body having a nose end with a plurality of objects disposed in a column within the projectile body. An ejection charge is disposed within the projectile body at the nose end. An ejection device including a hood enclosing a cavity is ejectably disposed within the projectile body between the ejection charge and the column. The hood has a wall with an opening facing the ejection charge so that, after ignition of the ejection charge, resulting powder gases enter into the cavity through the opening to generate a gas pressure between the hood and the adjacent object and simultaneously exert a force on an exterior portion of the wall of the hood that causes the hood and the column to be ejected from the tail end of the projectile body, whereby the hood separates from the column once the hood and column are free of the projectile due to the pressure in the cavity.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: May 11, 1993
    Assignee: Rheinmetall
    Inventors: Peter Tripptrap, Karl-Heinz Vogt, Klaus D. Karius
  • Patent number: 5191169
    Abstract: A multiple module EFP warhead comprises a tubular body having a central axis with a plurality of explosively formed penetrator modules arranged tandemly within the body along the axis. Each of the modules includes a curved, dish shaped support disk having a unique forwardly convex curvature. The support disk is focused on the axis at a point behind the module. Each module has a set of circumferentially spaced apertures therethrough, each having a central aperture axis intersecting the central axis. Each aperture supports a separate ductile metal disk therein and an explosive charge behind and against the metal disk. Each of the aperture axes forms an acute angle of inclination with the central axis which is uniquely offset from the axes of the other modules so that each EFP travels along a unique forward path.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: March 2, 1993
    Assignee: Olin Corporation
    Inventor: John B. Hu
  • Patent number: 5183962
    Abstract: A submunition unit for a spin stabilized carrier projectile (1), with the submunition unit including an antenna disposed at the nose of its casing (7), and with the antenna (5) being covered by a protective cover (6). The casing (7) and the protective cover (6) are provided with respective axially overlapping collars (8, 9) which are each provided with respective opposed circumferential grooves (14, 15) to form an annular recess to accommodate an elastic securing ring (16). The securing ring, which is normally positioned within the innermost of the circumferential grooves, expands under the influence of centrifugal forces to connect the casing and protective cover together in a form-locking manner.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: February 2, 1993
    Assignee: Rheinmetall GmbH
    Inventors: Klaus D. Karius, Armin Eskam, Karl-Heinz Vogt
  • Patent number: 5163166
    Abstract: Fragments, also in the shape of projectiles with a length to diameter ratio greater than 3, can be successfully accelerated directly by means of an explosive if at least one forward casing in the frontal zone of the fragment causes the shock wave generated by detonation of the explosive to pass from the fragment into the forward casing, which subsequently detaches from the fragment thus protecting the fragment from the destructive effects of the reflected shock wave.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: November 10, 1992
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Wolf-Dieter Adler, Wolfgang Bottger
  • Patent number: 5160800
    Abstract: An improved store launching device is disclosed wherein the inside of a sdard sonobuoy launch container is modified to accept, and properly dispense, only one smaller and lighter store. A positioning ring is fitted securely onto the inner walls a preselected distance from the discharge end to provide a seat for a perforated obturator. A slotted pressure relief ring, with the edge adjacent the obturator having a biased cut of a predetermined angle therein, is placed adjacent the obturator and the discharge end of the container to surround the store.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: November 3, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Bruce W. Travor, Frank P. Marshall, Timothy L. Kraynak
  • Patent number: 5153371
    Abstract: A weapon arranged to travel in a given orientation when in flight, has a body and a ribbon. The body has a payload casing and a spindle rotatably mounted at the rear of the payload casing. The ribbon is formed into a flexible loop for trailing behind the body in flight. This ribbon is attached to the spindle. The ribbon has an impelling surface shaped to apply a torque to the spindle when in flight.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: October 6, 1992
    Assignee: The United States of America as represented by The Secretary of the Army
    Inventors: John C. Grau, William G. Kuhnle, Arthur J. Fiorellini
  • Patent number: 5140909
    Abstract: A projectile with rear and front sections able to deliver payloads of submunitions contained inside the projectile after separation of the rear from the front section. The rear section is fitted with an assembly of thin blades. When both sections are assembled, the blades are partially in the rear section and partially in the front section, and when the two sections are separated, the blades spread out. The assembly is such that the length of blade that spreads out is greater than the length of blade that was in the front section before separation of the two section.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: August 25, 1992
    Assignee: Thomson-Brandt Armements
    Inventors: Jean-Pierre Pineau, Jean-Pierre Frehaut, Philippe Kerdraon
  • Patent number: 5111748
    Abstract: Submunition which is deployable through the intermediary of an artillery projectile, and in which the submunition includes a releasing device for a braking parachute which is stowed in the tail end region of the submunition. The releasing device is activatable through the intermediary of a retarding element which, in turn, is releasable in dependence upon the exit of the submunition from the casing of the carrier projectile.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: May 12, 1992
    Assignee: DIEHL GmbH & Co.
    Inventors: Gunther Thurner, Helmut Hammer
  • Patent number: 5109774
    Abstract: Disclosed is a new type of penetrating projectile, the penetrating capacity of which is improved and more efficiently controlled, notably through a solution to the problems of obliquity. A projectile of this type has a front element forming the active part, fixedly joined to a tube. The tube has a closed end which contains a propellant charge for the propulsion of the element and an igniter for the charge, responding to the impact of the element on a target. In reaching the target, the projectile penetrates it slightly under the effect of the velocity and it is only at this instant, or slightly after it, that the penetration proper takes place. The penetration thus takes place without obliquity. This projectile can be used as an individual munition or sub-munition.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: May 5, 1992
    Assignee: Thomson-Brandt Armements
    Inventor: Jean Deffayet
  • Patent number: 5107767
    Abstract: A submunition dispensing system is disclosed which includes inflatable bladders expandable from collapsed to inflated conditions in response to fluid pressure. The bladders are mounted in cavities of a carrier frame underlying subpacks of submunitions. The bladders lie adjacent to the support and central structures of the frame defining the cavities. Each bladder can be configured to have either an unpleated or a pleated configuration in the collapsed condition. The bladder can also be configured for expansion to an overall constant diameter outer shape or to a generally conical outer shape in the inflated condition. Expansion to the conical shape imparts a velocity gradient to the subpack. The dispensing system also includes retaining assemblies for releasably retaining the subpacks in the cavities against the collapsed bladders and a gas generator disposed in a passage of the central structure of the carrier frame.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: April 28, 1992
    Assignee: Olin Corporation
    Inventors: Mark D. Schneider, Randy L. Hoskins, Lyle D. Galbraith, Gary L. Dusenberry
  • Patent number: 5107768
    Abstract: The invention relates to a projectile having an interior space in which disposable payloads and/or electronic components are arranged, and which are of a type intended to have an extended lifetime. To protect the interior components from corrosion, the interior space is filled with a protective gas, for example, argon, nitrogen or hydrogen, or a mixture of these gases. The protective gas may be present in the interior space at a greater than atmospheric pressure of, for example, three bar.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: April 28, 1992
    Assignee: Rheinmetall GmbH
    Inventor: Rolf Langenohl
  • Patent number: 5103734
    Abstract: The invention concerns a guided munition, fired from a launching system with a cannon effect. This munition comprising sub-assemblies is supported, during acceleration in the cannon, by a peripheral casing which rests on the first sub-assembly of the munition placed at the front of the munition and is fixed to an ejectable sub-assembly placed at the rear of the munition. The weight of this casing is necessary to withstand the forces due to acceleration and it enables the range of the munition to be increased during the ballistic phase. During the transition from the ballistic phase to the guided phase, the ejectable sub-assembly is ejected, taking with it the casing which thus frees the airfoil surfaces to open out. The casing thus positioned also provides sealing and protection of the sensitive parts and rigidity of the whole of the munition.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: April 14, 1992
    Assignee: Thomson-Brandt Armements
    Inventors: Philippe Arnaud, Marc Bernard, Herve Boubault, Rene Thouron
  • Patent number: 5094170
    Abstract: A missile for dropping a batch of armaments having a housing containing propulsion, guidance and control devices and a container having a device therein for holding and ejecting at least one armament group connected to the housing to form the missile. The container has an upper, reinforced flank, two side flanks integral with the upper flank with each having pyrotechnic cords for cutting windows therein, a lower pallet integral with the two side flanks and a pyrotechnic cord for cutting a window therein, and two end frames, the holding and ejecting device being supported on the lower pallet.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: March 10, 1992
    Assignee: Aerospatiale Societe Nationale Industrielle
    Inventors: Jacques Raynaud, Pascal Herquel
  • Patent number: 5092237
    Abstract: An electropyrotechnic device for sequentially triggering the operation of a battery of gas generators. The ignition of double-base propellant blocks is obtained by the combination of EFI and an IFOC, arranged so that the airtight barrier between the cavity containing the donor secondary explosive and the downstream chamber containing the secondary receiving explosive is only one part of the closing element of the back end carrying the nozzles, integral with the ring. The control electronics of the EFI are contained inside a housing capping the back end of the powder generator with the entire system being closed by a cap.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: March 3, 1992
    Assignee: Thomson-Brandt Armements
    Inventors: Denis Beaufay, Jean Boucard, Jean Holtz, Andre Winaver
  • Patent number: 5090326
    Abstract: A lightweight training bomblet provided with a housing made of cardboard or plastic. Such training bomblet should be easily assembled and be able to withstand the high acceleration forces generated during transport into a target area. To prevent undue deformations of the bomblet housings made, for example, of cardboard, during air transport and the resulting premature ignition during ejection from a carrier projectile, both cardboard or plastic housing covers are connected with one another by means of a pre-tensioned connecting arrangement and their abutment faces are pressed against the end faces of a tubular housing shell, with the abutment faces of the housing covers possibly additionally containing a holding and sealing arrangement which is pressed into or against the end faces of the housing shell.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: February 25, 1992
    Assignee: Rheinmetall GmbH
    Inventors: Ernst-Wilhelm Altenau, Ulf Hahn, Siegmar Fischer, Margret Palten
  • Patent number: 5081931
    Abstract: To provide a complete seal in the region of the rifling, particularly in worn-out gun barrels firing spin stabilized carrier projectiles provided with a metal guide or driving band and a thin-walled projectile connected to a projectile base and having a wall thickness less than or equal to 0.05 times the caliber of the gun barrel and to reduce the ramming deceleration and the radial pressure stresses on the projectile shell during passage through the gun barrel, a plastic ram ring is disposed on the outer surface of the projectile shell in front of the metal guide band and in a region of the shell that is not supported radially by the projectile base.
    Type: Grant
    Filed: January 3, 1991
    Date of Patent: January 21, 1992
    Assignee: Rheinmetall GmbH
    Inventors: Gunter Frye, Klaus-Dietmar Karius, Heinz-Josef Kruse, Achim Sippel, Jurgen Meyer, Michael Primus
  • Patent number: 5078053
    Abstract: Disclosed is a system for securing sub-munitions on board a carrier. The system uses straps. Each strap is fixed by one end to a container wall by a tensioning means, and its other end is engaged in a cylindrical lock element mounted on another wall. The cylindrical lock element is connected to a resistant torque generator device which is itself connected to a torque limiting device which gets triggered at a determined threshold value, so as to release the cylindrical lock element in rotation in order to release the end of the strap. In these systems, the straps are released less suddenly than in the known systems, and they are released with perfect simultaneity. A development enables the sub-munitions to be ejected with controlled angles of incidence in relation to the trajectory of the carrier.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: January 7, 1992
    Assignee: Thomson-Brandt Armements
    Inventor: Jean-Francois Denis
  • Patent number: 5076171
    Abstract: A bomblet carrier projectile for delivering training bomblets to a target area. A plurality of training bomblets are supported in layers within the projectile body, with each training bomblet having a housing made of at least one of paper and plastic. A plurality of supporting elements are disposed within the projectile body and stackable in the axial direction of the projectile body for supporting the training bomblet housings in the layers. A detonator is arranged in a frontal region of the projectile body. A gas passage channel is formed along the longitudinal axis of the projectile body. An ejector unit is disposed behind the detonator and includes an ejection charge for emitting ignition gases when ignited by the detonator that are passed through the gas passage channel for igniting the training bomblets and an ejection plate for ejecting the training bomblets from the projectile body, over a target area, in response to pressure generated by the ignition gases.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: December 31, 1991
    Assignee: Rheinmetall GmbH
    Inventors: Ernst-Wilhelm Altenau, Siegmar Fischer, Margret Palten
  • Patent number: 5074218
    Abstract: A grenade with dual fuses for simulating small arms fire comprises: a hollow cylindrical housing including a first threaded end and a second open end; a main filler charge being located within the housing proper; means for covering the end of the main filler charge which is adjacent the housing open end; means being compressively connected to the housing open end for securing the main filler charge within the housing; a main igniting fuse being fitted onto the housing threaded end; a cup shaped member being located inside the housing in between the main igniting fuse and the main filter charge; a propelling charge being located in between the cup shaped member, the housing threaded end, and the main igniting fuse; a first straight fuse being responsive to the main igniting fuse and being located in between the main igniting fuse and the main filler charge; a second L-shaped fuse being responsive to the main igniting fuse and being located in between the main igniting fuse, the propelling charge, and the cup s
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: December 24, 1991
    Inventor: Joseph Castro
  • Patent number: 5074214
    Abstract: Method for air dispersion of filamentary type organic material from an initial compressed form comprising a component of a propellant and/or air-activated shell-like structure.An invention comprised of a plurality of compressed filamentary organic materials, a vehicle for storing and dispersing said materials and a method for effecting air dispersion of such materials.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: December 24, 1991
    Assignee: Hercules Incorporated
    Inventor: Fevzi Zeren
  • Patent number: 5067410
    Abstract: A flexible wing which is connected to a submunition provides a substantia vertical descent and provides torque which power submunition electronics. The flexible wing is deployed in a low drag configuration to avoid collision with other submunitions. The flexible wing is canted to allow rotation of the wing.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: November 26, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: James F. Murnane, III, William G. Kuhnle
  • Patent number: 5067411
    Abstract: A weapon system including a primary weapon arranged to be guided to a target, and further comprising at least one secondary weapon forming a unit with the primary weapon, but being releasable from the primary weapon on the approach to a target, the secondary weapon or weapons being controllable, on release, to ensure target destruction should the primary weapon not succeed in target destruction.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: November 26, 1991
    Assignee: British Aerospace Public Limited Company
    Inventor: Richard F. Ball