Having Radially Directed Propelling Holes Patents (Class 102/372)
  • Patent number: 10690446
    Abstract: A weapon training system including a magnetic sensor system is described. The magnetic sensor system is insertable into or integrated with a round of an indirect firing weapon and includes at least one magnetic sensor and a microcontroller communicatively coupled to the at least one magnetic sensor. The microcontroller is configured to perform operations including receiving at least one proximity signal from the at least one magnetic sensor indicating a proximity of at least one magnet of at least one charge to the at least one magnetic sensor, determining, based on the at least one proximity signal, that the at least one charge is removably attached to the round, generating an output signal indicating that the at least one charge is removably attached to the round, and wirelessly transmitting the output signal to an electronic device.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: June 23, 2020
    Assignee: Cubic Corporation
    Inventors: Steffen Reymann, Gavin Smith
  • Patent number: 10352655
    Abstract: A weapon training system including a magnetic sensor system is described. The magnetic sensor system is insertable into or integrated with a round of an indirect firing weapon and includes at least one magnetic sensor and a microcontroller communicatively coupled to the at least one magnetic sensor. The microcontroller is configured to perform operations including receiving at least one proximity signal from the at least one magnetic sensor indicating a proximity of at least one magnet of at least one charge to the at least one magnetic sensor, determining, based on the at least one proximity signal, that the at least one charge is removably attached to the round, generating an output signal indicating that the at least one charge is removably attached to the round, and wirelessly transmitting the output signal to an electronic device.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 16, 2019
    Assignee: Cubic Corporation
    Inventors: Steffen Reymann, Gavin Smith
  • Patent number: 9921035
    Abstract: A training device for a mortar that includes a firing tube with a front, open end, a rear end, a tube wall and a removal opening for removing a round of mortar training ammunition from the firing tube. The training device further includes a base plate to which the rear end of the firing tube is pivotably connected and a support with an aiming and alignment device. The firing tube is movably connected to the support on a front area by the aiming and alignment device. The training device also includes a transport device arranged on the rear and of the firing tube with which rounds of mortar training ammunition can be automatically transported away out of the firing tube through the removal opening.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: March 20, 2018
    Assignees: Saab Bofors Dynamics Switzerland Ltd., Saab Trainings & Simulation
    Inventors: Martin Jandl, Kai Schlegel
  • Patent number: 9702673
    Abstract: A tail boom for a gun-launched projectile includes a boom housing and a cap fixed to a rear end of the boom housing. A piston is translatable in the housing by the force of a compression spring. A plurality of fins are rotatably fixed to the boom housing. Each fin includes a protruding portion that extends into a translation path of the piston. The cap includes a guide bore for the piston stem to maintain alignment of the piston. The piston presses on the protruding portion of the fins, causing the fins to rotate about their hinge points into a deployed position.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 11, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Stephen Ginetto, Andrew Moramarco, Leanne Mohla
  • Patent number: 9683822
    Abstract: A munition that is adapted to enhance fragmentation effects upon detonation includes preformed fragments between a casing and a shell. The overall mass of the preformed fragments is greater than the overall combined mass of the casing and the shell for enhancing the degree of controlled fragmentation compared to uncontrolled fragmentation. By enhancing the dispersal of controlled fragmentation, the overall fragmentation area coverage and fragmentation pattern density may also be enhanced while limiting travel of the fragmentation beyond the target area for reducing collateral damage. The preformed fragments may fill a continuous volume between the casing and the shell to effectively utilize the munition volume and to maximize the amount of preformed fragments contained within the shell. The preformed fragments may be free flowing pellets that are poured into the volume between the casing and the shell for enhancing distribution of the fragments and for improving assembly of the munition.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: June 20, 2017
    Assignee: Raytheon Company
    Inventors: Keith A Kerns, John J. Spilotro, Thomas H. Bootes, Brandon J. Cundiff, Jesse T. Waddell, Wayne Y. Lee
  • Patent number: 9562754
    Abstract: A bullet assembly comprising a bullet and a cup assembly, the cup assembly may have a ring portion for scraping the barrel of a muzzleloader. The cup assembly may be slidable on the bullet with an extended position and a contracted position, the contracted position having a greater diameter than the extended position. A contraction inhibiting member that requires shearing off of the member for contraction may be disposed on one of the components.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: February 7, 2017
    Assignee: Vista Outdoor Operations LLC
    Inventors: Bryan P. Peterson, Drew L. Goodlin, Erik K. Carlson, Lawrence P. Head, John W. Swenson, Sharon Jones
  • Patent number: 9470491
    Abstract: A frangible tail boom for a gun-launched projectile includes a tail boom housing having a forward end configured to engage a projectile body and a through bore. The tail boom housing has forward and rear portions. The forward portion has a frusto-conical shape and an outer diameter that decreases from the forward end toward the rear portion. The forward portion includes a circumferential groove extending from the outer surface radially inward toward the small diameter segment of the through bore.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: October 18, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Stephen Ginetto, Andrew Moramarco, Leanne Mohla
  • Patent number: 9290259
    Abstract: An aircraft nose comprising a primary fuselage structure, and housed inside said structure, a cockpit, and an avionics bay containing a plurality of avionics racks designed to receive electrical and/or electronic equipment. The cockpit and the avionics bay are each made in the form of a distinct module that is suitable for being installed in a single operation inside the primary fuselage structure. The use of modules for integrating in the aircraft nose makes it possible to reduce considerably the time required for fitting out the nose on the final assembly line of the aircraft.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 22, 2016
    Assignee: Airbus Operations (SAS)
    Inventors: Yves Durand, Bernard Guering
  • Patent number: 8550002
    Abstract: An arrangement for supporting a mortar shell into a breech-loading weapon barrel (2). The arrangement comprises a support piece (6) provided with an edge flange (7) and to be attached to the tail of the mortar shell (1), whereby the arrangement further comprises a connecting piece (8) between the support piece and the mortar shell tail, which connecting piece is arranged to be attached to the mortar shell and the support piece and thus to attach the support piece with a mechanical joint to the mortar shell tail. In connection with the connecting piece (8), there is a point which is arranged to yield in a firing situation and thus to allow the mortar shell (1) to be detached from the support piece (6); and a firing mechanism (17) for firing the actual primer (10) of the mortar shell. The mechanical joint between the connecting piece (8) and the support piece (6) has been formed by means of cotter attachment (14).
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: October 8, 2013
    Assignee: Patria Land Systems Oy
    Inventor: Kari Reunamäki
  • Patent number: 8336460
    Abstract: A support member and method for supporting a shell into the barrel of a breech-loading weapon. The support member (6) comprises a support element (8) with an rim flange (7), end (16), and edge casing (12), and means for fastening the support element (8) to at least one fin (5) belonging to the tail end (4) of the shell (1). The means for fastening the support element (8) to the tail end (4) of the shell (1) comprise a retainer part (9) arranged to the edge casing (12) and arranged to circle the inner surface (10) of the edge casing essentially level with the plane of the rim flange (7).
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: December 25, 2012
    Assignee: Patria Land Systems Oy
    Inventors: Jukka Tiainen, Jari Grönlund, Kalevi Yli-Paavola
  • Patent number: 8269156
    Abstract: A projectile is guided by employing heat, generated from the aerodynamic heating of a surface of the projectile while the projectile is in flight, to vaporize a material stored within the projectile. The resulting gas is used to guide the projectile.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: September 18, 2012
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Edward Bergmann, Brian London, Andrew Dineen
  • Patent number: 7475636
    Abstract: A projectile having variable kinetic energy contains multiple propellant charges (14) that are able to be individually selected for ignition. Each charge (14) has a selectable initiator (15) that may be triggered by a wired or wireless firing system, preferably an inductive system, in order to determine the kinetic energy of the projectile. The projectiles are axially stacked for firing from the barrel of a weapon, with nose portion (11) shaped to seal against tail portion (12) of a leading projectile. Ignition gas exit ports (17) are located in nose portion (11) for propulsion of a leading projectile from the weapon. Alternative, the ports may be located in tail portion (12) for propulsion of each respective projectile. Charges (14) may be distributed around the longitudinal axis of body (10) of the projectile.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: January 13, 2009
    Assignee: Metal Storm Limited
    Inventors: James Michael O'Dwyer, Sean Patrick O'Dwyer
  • Patent number: 6837164
    Abstract: A protector for propelling charge increments on a mortar shell includes a semi-cylindrical body, the semi-cylindrical body arranged around a bottom and sides of the charge increments; two generally horseshoe shaped end plates attached to a front and a rear of the semi-cylindrical body, the end plates defining openings therein, the tail tube of the mortar fitting in the opening in each end plate, the charge increments being disposed between the two end plates; a wedge-shaped boom attached to the rear end plate, the wedge-shaped boom fitting between two fins on the fin portion of the mortar shell; a stop tab attached to a rear end of the wedge-shaped boom, the stop tab extending substantially perpendicular to a narrow side of the wedge-shaped boom to contact an end of the fin portion thereby minimizing longitudinal motion of the charge increments; and a nose cone attached at the front of the semi-cylindrical body, the nose cone defining an opening at its front end, the middle portion of the mortar shell fitting
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: January 4, 2005
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Vishwa Khanna, Richard C Dzury, Kenneth Milano, Tapan Chatterjee
  • Patent number: 6382105
    Abstract: A high mass flow pyrotechnic gas generator in the aft end of a hard target penetrating warhead generates hot gases during penetration into a chemical or biological manufacturing or storage facility. This device will act to place neutralizing gases in and near the entry hole made in the target where viable infectious agents are most likely to be dispersed early in the warhead event before the operation of the main warhead charge. The gas generating material, which may be similar to a composite solid propellant, will produce very hot gases preferably containing hydrogen chloride and vapor phase moisture or other chemical sanitizing material. The combination acts as a neutralizer to render chemical and/or biological agents inert. The neutralizer will mix with the chemical and/or biological agents during the initial surge of aerosolized chemical and/or biological agents released in the target and render them harmless.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 7, 2002
    Assignee: Lockheed Martin Corporation
    Inventor: John W. Jones
  • Patent number: 6272997
    Abstract: A retaining clip for the retention of a fin-stabilised projectile in a desired position in a barrel at the rear breech end of a launcher, the clip comprising a generally cylindrical body portion having: engagement means for engaging with the launcher at the said rear breech end, said engagement means extending at least part of the way around the said cylindrical body portion and adapted to prevent forward movement of the clip when positioned in the launcher, a substantially central axial aperture for allowing access for firing the projectile a plurality of radially and axially extending grooves for engaging the fins of the projectile when the clip is fitted to the projectile, each of said grooves having facing walls defining the groove therebetween, and the grooves adapted to divide the cylindrical body portion into a plurality of connected segments locating means positioned on at least one of said walls of at least one of said grooves and intruding into or above the groove, said locating means adapted to
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: August 14, 2001
    Assignee: Royal Ordnance PLC
    Inventors: David J James, Derrick Hewkin
  • Patent number: 6257148
    Abstract: The invention relates to an arrangement for supporting a mortar shell into the barrel of a mortar weapon by using a separate support piece fixed to the tail of the mortar shell. In the arrangement the support piece is attached to the tail of the mortar shell with a mechanical joint provided by a separate connecting element (7), the connecting element being manufactured of such material and constructed in such a way that it fractures when the charge of the mortar shell is fired, allowing the mortar shell (1) to detach from the support piece (8).
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: July 10, 2001
    Assignee: Patria Vammas Oy
    Inventors: Vesa Tapio Toivonen, Kari Matti Reunamäki, Martti Juleani Lehtimäki
  • Patent number: 5945628
    Abstract: In a shell thrower, a grenade is inserted in a barrel and a booster charge under the grenade will fire and generate a gas pressure which forces the grenade out of the barrel. To improve the driving charge acting on the grenade, a pressure plate is detachably fixed under the grenade, and the booster charge is located on the underneath side of the pressure plate. An ignition mechanism for the booster charge is arranged on the underneath side of the pressure plate, which ignition mechanism is initiated by the impact of the pressure plate against the bottom or a shoulder of the barrel. A releasable engagement is arranged between the upper side of the pressure plate and the bottom of the grenade, which engagement includes a locking device, which is released from its locking position by a part of the driving pressure of the booster charge.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: August 31, 1999
    Assignee: Roheim System
    Inventor: Karl-Axel Roheim
  • Patent number: 5872326
    Abstract: Avalanches, such as snow avalanches, are triggered with an explosive char The charge is propelled into a potential avalanche slope and detonated therein. The explosive charge is first located in a tube which is closed at one end and which also houses a propelling charge with which the explosive charge is propelled from the tube into the avalanche slope.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: February 16, 1999
    Assignee: Konrad Doppelmayr & Sohn Maschinenfabrik Gesellschaft mbH & Co. KG
    Inventor: Michael Manhart
  • Patent number: 5780766
    Abstract: A guided missile which can be fired as a mortar projectile with armour-piercing hollow-charge warhead behind a seeking head for autonomous or semi-autonomous final phase guidance is to be capable of use for universal use from the same mortar weapon selectively against hard-armoured targets and against concreted protective constructions. For that purpose provided in front of the blast-forming main hollow charge is a boring hollow charge which is also blast-forming but slower and of higher mass and which, in the event of impact against a target, clears in a region-wise manner the reactive additional armouring of an armoured vehicle or penetrates the concrete wall of a protection arrangement. Upon impact against the target, a sub-calibre post-firing fragmentation explosive charge is released due to inertia from its holder in order to detonate after passing through the hole in the concrete wall therebehind or in the event of impact against a hard target to produce secondary effects against sensor elements.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: July 14, 1998
    Assignee: Diehl GmbH & Co.
    Inventor: Werner Schroppel
  • Patent number: 5773751
    Abstract: A method for converting mortar shells into shells for use in smooth-bore gun barrels having an interior surface. The mortar shells include a warhead having a front end, a rear end, a tail fin, and a propellant charge. A guide casing is attached to at least the rear end of the warhead. The guide casing includes an outside surface. The guide casing supports at least the rear end of the warhead and is adapted for use with the smooth-bore gun barrel that the converted shells are to be fired from. A bourrelet is attached to the outside surface of the guide casing for sealing between the converted shells and the interior surface of the smooth-bore gun barrel that the converted shells are to be fired from.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: June 30, 1998
    Assignee: Bofors Liab AB
    Inventors: Lennart Fredriksson, Arne Wikstrom
  • Patent number: 5583314
    Abstract: A single-use firing indicator device for a projectile having a hollow rear extension includes a stopper and an indicator member. The stopper is shaped to at least partially cover the rear extension of the projectile. The indicator member is connected to the stopper and may secure the firing indicator device to the projectile. Removing the firing indicator device to prepare the projectile for firing requires permanently deforming the indicator member. As a result, the firing indicator device reliably conveys the firing status of the projectile without requiring costly modification or added parts.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: December 10, 1996
    Assignee: Luchaire Defense SA
    Inventors: Dominique Devaux, Rene Pinton, Jean-Michel Loas
  • Patent number: 5503080
    Abstract: A clip for the retention of a round of ammunition in a desired position in a barrel is described, the clip being manufactured from a plastics material and comprising a generally cylindrical body portion; the body portion having a plurality of generally radially and axially directed grooves therein, said grooves being adapted to engage the tail fins of an associated round of ammunition; engagement means extending at least part of the way around said body portion, said engagement means having a greater diameter than that of the body portion and being adapted to engage with a recess at the breech-end of an associated gun barrel to prevent forward movement; and a substantially central aperture to allow access to the propellant charge of the associated round of ammunition.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: April 2, 1996
    Assignee: Royal Ordnance plc
    Inventors: Stephen G. Goward, Peter P. Pietralski
  • Patent number: 5317163
    Abstract: A decoy for misdirecting heat-seeking and radar-echo-seeking missiles comprised of as main components a radar reflector and an engine and capable of simulating an aircraft in the infra-red wavelength of 1.5 to 2.5 m.mu.; 3-5 m.mu.; and 8-14 m.mu. and simultaneously in the radar band. The decoy is spectrally adapted in the infra-red range and is contoured to exhibit a large reflective surface with a doppler effect in the radar band. The parts are constructed so that the desired configuration and aerodynamic stability is achieved only when the decoy is prepared for operation. A plume covering an appropriately large area is produced and the content of the exhaust includes carbon dioxide and/or metallic powder to a high IR radiation of the plume.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: May 31, 1994
    Assignee: Dornier GmbH
    Inventor: Bernt Obkircher
  • Patent number: 5175393
    Abstract: A device in a launch unit for a mortar projectile (4), where the launch unit (6) has a propellant charge (10) capable of generating propellant gas for launching the projectile from the barrel (1) of the mortar, the launch unit being designed to be placed in a loading position behind the projectile. The launch unit has an enlarged cross surface (20a) in the barrel against the pressure from the propellant gas, the enlarged cross surface creating an expulsion force on the launch unit. The cross surface is in the form of wing elements (20a) arranged crosswise in the front portion of the launch unit (6) and being bendable in proportion to the magnitude of the propellant gas pressure in order to accomplish a self-regulation of the expulsion velocity of the launch unit.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: December 29, 1992
    Assignee: Swedish Ordnance - FFV/Bofors AB
    Inventor: Bernt Andersson
  • Patent number: 5129325
    Abstract: There is proposed an ejector device (6) for grenade projector or mortar projectiles (1), which permits simulation of mortar firing even in halls or very limited areas. It is known that blank cartridges (17) for rifles, pistols or bolt firing devices have only a slight degree of scatter in terms of gas pressure. Therefore the ejection speed of a piston (13) which is inserted into the ejector device (6) and which is driven by the powder propellent gases of the blank cartridge (17) is always the same. In that way it is always possible to achieve the same firing ranges of only a few meters.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: July 14, 1992
    Assignee: Mauser-Werke Oberndorf GmbH
    Inventor: Erich Matzagg
  • Patent number: 5080017
    Abstract: A fin-stabilized projectile comprises a body section and a tail section disposed along a longitudinal axis. The tail section includes an outer end portion, a fin-carrying portion, and a boom portion having a tubular wall defining an ignition propellant gas chamber with a plurality of propellant gas ejection holes therein. An ignition cartridge load package includes a main propellant charge and an end cap firing section. The main propellant charge is disposed within the tubular boom portion and includes compacted particulate propellant material. The particulate propellant material forms a rigid, elongated wall structure defining open passageways for directing propellant igniting gases from the end cap firing section through the boom portion toward the body section. The open passageways direct propellant igniting gases from the end cap firing section along surfaces along the wall structure to ignite the propellant material forming the wall structure.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: January 14, 1992
    Assignee: Pocal Industries, Inc.
    Inventor: Niilo Asikainen
  • Patent number: 4748912
    Abstract: A supersonic mortar grenade is disclosed. Such grenade has a front portion that possesses a first conical section which is tangential to a second ogival section. The second ogival section is tangential to a cylindrical center area. The cylindrical center area is tangential to a rear portion which is made up of a first convex section and a second concave section, the convex section being tangential to the concave section. The concave section of the rear is tangential to a cylindrical finned tail.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: June 7, 1988
    Assignee: Esperanza y Cia, S.A
    Inventor: Jose G. Garcia
  • Patent number: 4712465
    Abstract: A gun barrel and projectile system utilizes a smooth central bore gun barrel fitted with a short rifled insert near the breech end. A projectile fitted with a perforated skirt and driving band about the base of the skirt are loaded into the gun barrel so that the driving band just engages the rifled insert, and the warhead portion of the projectile extends into the smooth bore portion of the barrel. Upon firing of a breech charge, gases from the breech charge are ducted to the space between the thin side walls of the projectile and the smooth central bore, thereby establishing a gas bearing. The gas bearing provides lateral support to the projectile and lubricates the projectile in the smooth central bore. Because of the lateral support the projectile receives from the gun barrel and the gas bearing, much less projectile structural strength is required to resist set-back forces. Mass fraction ratios of ordnance payload mass to structural mass in the projectile are on the order of ninety percent.
    Type: Grant
    Filed: August 28, 1986
    Date of Patent: December 15, 1987
    Assignee: The Boeing Company
    Inventor: Kenneth A. B. Macdonald
  • Patent number: 4711180
    Abstract: A mortar training device which includes full-size, simulated, propelling charges is disclosed. The device enables a trainee to subtract simulated charges, as required, to achieve a desired zone of reduced firing distance, following procedures similar to those used with standard service ammunition. The method is embodied in a sabot projectile having a sub-caliber flight projectile. The system provides zones of firing distance which are approximately one-tenth that of standard service ammunition.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: December 8, 1987
    Inventor: John Smolnik
  • Patent number: 4694755
    Abstract: Shell for firing practice comprised of a master projectile in the form of a conventional shell which has a hole along its entire axis for the purpose of inserting inside a small bore projectile that comprises a sleeve and in whose inside there is concentrically placed in axial continuity, a cartridge positioned on the bottom of the sleeve which has a first explosive charge that is activated by the mortar firing pin, and where said cartridge possesses a wad having at least one hole to allow the expansive wave to be transmitted to a second firing pin which activates a second explosive charge, and means for transmitting the impelling action of said second charge to a carried projectile.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: September 22, 1987
    Assignee: Esperanza y Cia, S.A.
    Inventor: Inigo A. Ibarra
  • Patent number: 4665825
    Abstract: Arrangement for interconnecting a projectile and a projectile extension component. The projectile and the extension component each incorporates its own connecting element which are capable of being introduced into each other by causing one of the connecting elements to be so deformed as to be retained in its deformed state in the second connecting element. The connecting elements are capable of being introduced into each other with the help of the firing forces whose effect is immediate when the projectile and the extension component are fired from the barrel of a weapon.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: May 19, 1987
    Assignee: Affarsverket FFV
    Inventor: Rolf T. Pettersson
  • Patent number: 4611540
    Abstract: Mortar ammunition with a projectile body and a tail tube containing the necessary propellant charge. The tail tube and the projectile body constitute two separate components which, for the purpose of being loaded into the mortar, are capable of being lowered in turn into the mortar via its barrel until they come into contact with each other inside the barrel. When the mortar is fired the projectile body will leave the mortar without taking with it the tail tube. The projectile body and the tail tube make contact with each other via a girdle fixed to the tail tube, said girdle being caused by the gases from the propellant charge to become detached from the tail tube and to become securely attached to the projectile body, so that the girdle is carried out of the barrel by the projectile body.
    Type: Grant
    Filed: February 7, 1984
    Date of Patent: September 16, 1986
    Assignee: Affarsverket FFV
    Inventors: Rolf T. Pettersson, Hans G. U. Edlund, Bengt I. C. Regebro
  • Patent number: 4593620
    Abstract: Propellant charge component for use with a projectile (4) for muzzle-loaded weapons. The propellant charge component (5) and the projectile (4) are each capable of being loaded into the weapon separately. The propellant charge component (5) is provided with a piston (14) which is capable under the effect of gases from the propellant charge component (5) of being separated from the propellant charge component (5) in the direction of firing of the projectile until it comes up against a stop organ (17) arranged on the propellant charge component (5), whereby the impact against the stop will impart kinetic energy to the propellant charge component (5) causing it to be ejected from the weapon.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: June 10, 1986
    Assignee: Affarsverket FFV
    Inventors: Rolf Pettersson, Claes Tisell
  • Patent number: 4413567
    Abstract: A fin-stabilized mortar grenade has an ogival shell body, a tail tube with finned controlling surfaces. The shell body has at least one annular groove located with the limits of the caliber diameter zone. A spreadable sealing ring is disposed in the annular groove. The sealing ring has an edge bevel located at the edge facing the shell body at the bottom of the annular groove. The bevel edge configuration provides a mechanism by which the force of propellant gases enhances the radial spreading of the sealing ring outwardly against the inside surface of the barrel from which the mortar grenade is fired.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: November 8, 1983
    Assignee: Etablissement Salgad
    Inventor: Amos Frostig
  • Patent number: 4388868
    Abstract: A shell body for fin-stabilized projectiles has an ogival curvature and is composed of two body sections. A front body section has a cylindrical bore extending therethrough and a rear body portion has a cavity therein. A headpiece containing a fuse is connected to the front end of the front body section and a tail tube with a fin-stabilizer unit is connected to the rear of the rear body section.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: June 21, 1983
    Assignee: Etablissement Salgad
    Inventor: Amos Frostig
  • Patent number: 4245403
    Abstract: An apparatus for simulating the detonation, light flash and smoke development of ammunition, without the actual firing or impact of the real thing, is disclosed. A plurality of smoke and flash pyrotechnic charges contained in a replaceable support panel, each charge having its own detonator, simulates the smoke and flash of the ammunition. In addition to the smoke and flash simulation, means for generating a noise impulse is provided to simulate the detonation. A control unit, responsive to a firing command, controls the generation of the smoke, flash and detonation noise to simulate either the firing or the impact of the ammunition. The apparatus is adaptable for mounting on the gun barrel of an armored vehicle to give the crew as real a simulation as possible.
    Type: Grant
    Filed: January 19, 1979
    Date of Patent: January 20, 1981
    Inventor: Jan Hipp
  • Patent number: 4146356
    Abstract: There is disclosed a multi-flashlamp article capable of providing both highly intense audible and visual signals. The article is ideally suited for use as an intrusion alarm and includes a combustible member within the assembly's light-transmittable housing. A prestressed spring actuates the combustible by deforming a tubular primer having a quantity of fulminating material therein. This deflagrating material ignites a second quantity of fulminating material within the combustible's container to effect a suitable audible signal.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: March 27, 1979
    Assignee: GTE Sylvania Incorporated
    Inventors: Paul M. Marecek, John W. Shaffer
  • Patent number: 4014262
    Abstract: A blast simulator for use as a noise environment tester in a simulated mile launcher. The blast simulator includes a cylinder capped at both ends by a paper disc and encloses a pyrotechnic charge. An electric squib is inserted through either the cylinder walls or the end discs and when actuated ignites the pyrotechnic charge.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: March 29, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Robert E. Betts