Propellent Chemical Charge Container Patents (Class 102/282)
  • Patent number: 10184764
    Abstract: A munition is rendered less sensitive to inadvertent initiations by providing a polymer liner on the entire inside surface of the munition. A thermoplastic liner may be fabricated totally within an empty inert munition casing by spraying a layer of electrostatically charged low melt thermoplastic material particles over substantially the entire inside surfaces of the munition casing, which casing is first electrically grounded. After thickening the particle layer through heat, further such layers may be then applied there over, until a desired cumulative thickness liner is fabricated.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: January 22, 2019
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Patrick Mark, Daniel Lee Prillaman, Leon Moy
  • Patent number: 10088289
    Abstract: The invention relates to an igniter device for igniting energetic materials, more specifically to the area of the initiation of munitions, and methods of forming said ignition devices. There is provided an igniter device, for use in an explosive train, comprising a first synthetic polymer layer, a second synthetic polymer layer, wherein said first layer and second layer envelope a portion of an energetic material, wherein said synthetic polymer is capable of being sealed.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: October 2, 2018
    Assignee: BAE Systems PLC
    Inventor: Anne Marie Wilton
  • Patent number: 9964385
    Abstract: A shock mitigation casing includes a monolithic body made from a solid material. The monolithic body includes a first wall, a second wall spaced apart from the first wall, and axial end walls contiguous with the first wall and the second wall. A chamber is defined between the walls. A powder fills the chamber. The powder is a powdered form of the solid material.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: May 8, 2018
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: Kevin Genson
  • Patent number: 9840792
    Abstract: Preforms for open structured (lattice) composite tubular members manufactured from large (i.e. high filament count) prepreg yarns on a conventional maypole braiding machine, and subsequently cured to produce fiber reinforced composites of high strength and light weight.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: December 12, 2017
    Assignee: Auburn University
    Inventors: Roy M. Broughton, Jr., David J. Branscomb, David G. Beale
  • Patent number: 9625242
    Abstract: A modular artillery charge system module includes a central igniter container and cap end and body end igniter containers fixed to the central igniter container. The central igniter container is a rigid, longitudinal tube with opposing ends. The end igniter containers are fixed to the opposing ends of the central igniter container. Each end igniter container includes a large container portion and a small container portion that extends from the large container portion toward the central igniter container. The central igniter container and end igniter containers are made of a rigid material, such as foamed celluloid.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: April 18, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Mohamed Elalem, Gregory C. Burke, Viral Panchal, Philip Abbate, Chong Peng, Fei Shen
  • Patent number: 9522647
    Abstract: A driver airbag structure including: a front panel; a rear panel facing the front panel, and having an edge that is coupled to an edge of the front panel; and an inflator wrap which provides a space that is initially filled with gas when the airbag is deployed. The inflator wrap is provided in the front panel and the rear panel and has both ends that are fixed to both of the front panel and the rear panel.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: December 20, 2016
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Jeong Hoon Kang
  • Patent number: 9416753
    Abstract: Delay tools, systems and methods for achieving a selection of alternative delay times, a tool of which including a body, a drill bit operable relative to the body and a knob operably connected to the drill bit, and operably disposed relative to the body for engagement of the body with a rocket motor bulkhead and the drill both relative to a delay to provide for achieving a selection of alternative delay times.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: August 16, 2016
    Inventor: Gary C. Rosenfield
  • Patent number: 8776690
    Abstract: The invention relates to a combustible sleeve for accommodating propellant charge powder, to munitions designed using such a sleeve, and to a production method for such sleeves. The sleeve according to the invention is designed for accommodating propellant charge powder and has a jacket wall made of combustible felted fibrous material and an inlay of intersecting threads in the jacket wall. The threads are disposed therein at a distance from one another such that felted fibrous material reaches through the regions between the threads. The method comprises the following steps: preparing a jacket wall made of combustible felted fibrous material and inserting an inlay made of intersecting threads into the jacket wall. The threads are disposed therein at a distance from one another such that the felted fibrous material extends through the regions between the threads.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: July 15, 2014
    Assignee: Nitrochemie Aschau GmbH
    Inventors: Walter Lebacher, Alexander Huber
  • Patent number: 8627770
    Abstract: A cartridge assembly for large bore gun systems having an integrated retention assembly for maintaining propellant charges within the cartridge case. The cartridge case having an interior space for receiving propellant charges and an open proximate end through which the propellant charges can be fed. An insulating sleeve defining an interior channel is affixed to the cartridge case and extends out of the proximate end of the cartridge case. The interior channel serves as a chute through which propellant charges can be fed. After the propellant charges are loaded, the insulating sleeve is crimped closed to retain the propellant charges within the cartridge case. A closure plug can be inserted into the proximate end of the cartridge case after the insulating sleeve is crimped closed.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: January 14, 2014
    Assignee: BAE Systems Land & Armaments, L.P.
    Inventor: Gregg J. Severson
  • Patent number: 8561541
    Abstract: A propellant charge body for insertion into a propellant charge chamber in a firearm for firing caseless ammunition has a base body which contains a propellant charge. The diameter of the base body is less than the internal diameter of the propellant charge chamber. Radial projections are formed in one or more subareas on the circumference of the base body and match the radius of the base body in these subareas to the internal radius of the propellant charge chamber.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: October 22, 2013
    Assignee: Diehl BGT Defence GmbH & Co. KG
    Inventor: Axel Pfersmann
  • Patent number: 8418619
    Abstract: The present invention provides an improved kinematic countermeasure flare and method of constructing the same wherein the housing has integrated internal features. The flare nose weight is set at the end of a die core prior to molding for integration with the housing. Longitudinal grooves and other recesses in the die core allow for the formation of internal longitudinal ribs which propellant can bond to and a retaining bead for retaining the nose weight in the housing which are integrated with the housing. Propellant is cast into the formed housing. A propellant shaping mandrel is then inserted into the formed housing thereby forcing the propellant into the internal cavity created by the integrally molded longitudinal ribs, the shaping mandrel and the wall of the flare housing such that the propellant is bonded to the interior housing wall and the longitudinal ribs.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: April 16, 2013
    Assignee: Kilgore Flares Company, LLC
    Inventor: Alan Phillips
  • Publication number: 20120132098
    Abstract: The invention relates to a combustible sleeve for accomodating propellant charge powder, to munitions designed using such a sleeve, and to a production method for such sleeves. The sleeve (6) according to the invention is designed for accomodating propellant charge powder (4) and has a jacket wall made of combustible felted fibrous material (23) and an inlay (5) of intersecting threads (5) in the jacket wall. The threads (5) are displayed therein at a distance from one another such that felted fibrous material (23) reaches through the regions between the threads (5). The method comprises the following steps: preparing a jacket wall made of combustible felted fibrous material (23) and inserting an inlay (5) made of intersecting threads (5) into the jacket wall. The threads (5) are disposed therein at a distance from one another such that the felted fibrous material (23) extends through the regions between the threads (5).
    Type: Application
    Filed: August 3, 2010
    Publication date: May 31, 2012
    Applicant: NITROCHEMIE ASCHAU GMBH
    Inventors: Walter Lebacher, Alexander Huber
  • Publication number: 20120097060
    Abstract: A method for producing propellant charges with progressive combustion characteristic and a higher charge density than previously considered possible to achieve, intended in the first instance for direct-firing barrel weapons such as tank cannons. Combined in the charge are at least two radially perforated propellant tubes, which are arranged in their entirety inside or after one another, and which have at an e-dimension selected in relation to the actual type of propellant and its desired combustion characteristic, combustion or ignition channels, and which have circular outer and inner boundary surfaces, in conjunction with which, before initiation of the charge, at least one of the total number of outer surfaces of these propellant tubes that are available for initiation has been treated with an inhibition, surface treatment or surface intended to delay the propagation of ignition to that surface so that the combustion of the propellant tubes is partially mutually overlapping.
    Type: Application
    Filed: April 4, 2011
    Publication date: April 26, 2012
    Applicant: EURENCO BOFORS AB
    Inventor: Johan Dahlberg
  • Patent number: 8161882
    Abstract: A propellant charge for use for ammunition, in which the propellant charge is separate from the projectile, has a propellant charge substance which can be initiated by a fuse. In order to solve the problem of providing a propellant charge for use in a two-part munition, which on the one hand can be produced easily and at low cost and on the other hand does not present any risk of damage when mechanically loaded before use, it is proposed that a propellant charge casing be provided which surrounds the propellant charge substance, with the propellant charge casing being in the form of a plastic part which is composed of a non-combustible, temperature-stable plastic material.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 24, 2012
    Assignee: Diehl BGT Defense GmbH & Co. KG
    Inventors: Axel Pfersmann, Alfred Eckel
  • Patent number: 7997178
    Abstract: The present invention proposes a novel method for producing powder charges with a high charge density consisting of a granulated powder lying loosely in the charge. In accordance with the invention, the powder is vacuum-packed in airtight pouches made of a combustible and preferably flexible packaging material.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: August 16, 2011
    Assignee: BAE Systems Bofors AB
    Inventors: Lennart Gustavsson, Lars-Erik Bjorn
  • Publication number: 20110072996
    Abstract: A propellant charge for use for ammunition, in which the propellant charge is separate from the projectile, has a propellant charge substance which can be initiated by a fuse. In order to solve the problem of providing a propellant charge for use in a two-part munition, which on the one hand can be produced easily and at low cost and on the other hand does not present any risk of damage when mechanically loaded before use, it is proposed that a propellant charge casing be provided which surrounds the propellant charge substance, with the propellant charge casing being in the form of a plastic part which is composed of a non-combustible, temperature-stable plastic material.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 31, 2011
    Applicant: DIEHL BGT DEFENCE GMBH & CO. KG
    Inventors: Axel Pfersmann, Alfred Eckel
  • Publication number: 20090205528
    Abstract: The invention relates to a connecting mechanism for a multiple-part munition (1), for example for artillery charges. It is proposed that a multiple-part munition (1) be connected by means of a simple plug connection to at least two casing elements (2) which can be connected to one another and are arranged axially one behind the other, of a propellent-charge casing (10), with the casing elements (2) having a taper (3) and/or a corresponding opening (4) on their mutually facing end faces or tail faces, and the tapers (3) and/or the inner wall’.,(7) of the openings (4) having projections (8) so that they can be connected to one another with a force fit by pushing them together.
    Type: Application
    Filed: May 17, 2006
    Publication date: August 20, 2009
    Inventor: Walter Lebacher
  • Publication number: 20080156843
    Abstract: An explosion-driven setting tool includes a setting mechanism (12) driven by a propellant (23), an ignition unit (18) for igniting the propellant (23), a receptacle (15) for receiving a propellant holder (20), a data communication interface (31) for receiving and transmitting data of the propellant holder (20), and a data processing unit (30) for receiving data transmitted by the data communication interface (31) and connected with a display (50) for displaying the propellant supply level (27) of the propellant (23) in the propellant holder having a housing (21) with an interior space (22) for receiving the propellant (23), and a data storage identification unit (40) in which the propellant supply level (27) is stored for being read-out.
    Type: Application
    Filed: December 29, 2007
    Publication date: July 3, 2008
    Applicant: HILTI AKTIENGESELLSCHAFT
    Inventors: Gerhard Ehmig, Tilo Dittrich
  • Patent number: 7370585
    Abstract: Described herein is a method of filling ordnance with explosive materials. An ordnance shell (2) comprises a cavity (32) filled with explosive material (10), the explosive material (10) being contained in a bag (36) located within the cavity (32).
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: May 13, 2008
    Assignee: BAE Systems plc
    Inventors: Christopher White, Geoffrey Bennett, Daniel Wayne Thomas, Gavin Michael Crimmings, David Conway Johnson
  • Patent number: 7140300
    Abstract: A device to separate propellant charge modules for field weapons, each module incorporating a top and bottom, the top of one of the modules being engaged in the bottom of an adjacent module, the device incorporating a reception device for all the modules having a device to immobilize each of the modules, the immobilizing device being linked by a linking and separating device enabling a relative translation to be controlled for each of the modules with respect to its neighbors, thereby ensuring the separation of the modules.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: November 28, 2006
    Assignee: Giat Industries
    Inventors: Patrick Minard, Robert Vernet, Julien Boutin
  • Patent number: 7059251
    Abstract: A propelling charge support comprises horseshoe-shaped clips for engaging the tail fin and holding the propelling charges together for protection, a rounded saddle for holding the propelling charges of the cartridge, and winged edges to protect the propelling charges and aid in removal of the propelling charge support from the tail fin. The propelling charge support further comprises a flat outer surface on which the propelling charge support loaded with propelling charges can rest while being installed onto the tail fin. It comprises a fin engagement clip that interfaces with a fin blade when installed on the cartridge, and that prevents rotation of the propelling charge support and propelling charges about the tail fin axis during rough handling and transportation, preventing damage to the propelling charges.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: June 13, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Vishwa Khanna, Richard C. Dzury, David Ondre, Jason B. Runell
  • Patent number: 6666141
    Abstract: A proportional modular assembly of two charges for use in a gun, which charges are structured so that the power of one charge is related to the power of the other charge by a ratio of integers.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: December 23, 2003
    Assignee: United Defense, L.P.
    Inventor: Patrick E. Hagerty
  • Publication number: 20030005845
    Abstract: A proportional modular assembly of two charges for use in a gun, which charges are structured so that the power of one charge is related to the power of the other charge by a ratio of integers.
    Type: Application
    Filed: July 9, 2001
    Publication date: January 9, 2003
    Inventor: Patrick E. Hagerty
  • Patent number: 6457603
    Abstract: The invention relates to the connection of tubular sections (1, 2) of combustible propellant charge cases consisting of one or several windings of textile threads which are connected to propellants by binding means. Said charge cases are dimensionally stable and have a high level of mechanical resistance. The aim of the invention is to create a safe, resistant, tight connection and to ensure that cracks do not form unchecked during the connection process. To this end, the tubular sections (1, 2) to be connected are inserted into each other, said inserted tubular sections (1, 2) are connected by means of a non-releasable snap connection, and at least one longitudinal cut (3) is made in an axial direction, extending in the area of the connection.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: October 1, 2002
    Assignee: Dynamit Nobel GmbH Explosivstoff-und Systemtechnik
    Inventors: Michael Freist, Klaus Redecker
  • Patent number: 6382104
    Abstract: A method of making an igniter bag includes (a) providing a first piece of material having a shape of two substantially identical semicircular portions connected along their straight edges by a substantially rectangular portion; the shape defining two opposing three-sided notches, one notch on either side of the rectangular portion; (b) providing a second piece of material having substantially the same shape as the first piece of material; (c) aligning the first piece of material on top of the second piece of material; (d) joining the first and second pieces of material along the three sides of each of the opposing notches; (e) folding the first piece of material such that circumferences of its two substantially identical semicircular portions are aligned with each other and folding the second piece of material such that circumferences of its two substantially identical semicircular portions are aligned with each other; and (f) joining the circumferences of the two substantially identical semicircular portions
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: May 7, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Susan T. Peters
  • Patent number: 6360666
    Abstract: An apparatus for use in filling and capping artillery charge system modules or the like including a lower fixture carried by a base plate for receiving a module with an open center core tube and fixing the module in place relative to the base plate for filling and capping. An upper fixture is carried by a pivot plate for capping a filled module, the pivot plate being hingedly attached with respect to the lower fixture to enable the upper fixture to swing clear of the lower fixture during module loading and thereafter addressing a fixed module to cap same. The lower fixture further includes a centering rod that carries a peripherally disposed flexible expanding member and a shaped cam lock member which operate the expander member to receive, lock and unlock a center core tube to the centering rod to capture and fix the module in place. The cam lock member also aligns the system for lid insertion by an adjustable stroke air cylinder mounted on the pivot plate.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: March 26, 2002
    Assignee: Alliant Techsystems Inc.
    Inventor: Marlon D. Harris
  • Patent number: 6354183
    Abstract: The present invention relates to a method and a device for use in gun magazines first and foremost in automatic-loading artillery guns (26) for arranging and stowing modular charges, and for delivering the desired number and type of modular charge (50, 51, 53-55) for each loading occasion that may involve different charge strengths such as different lengths and diameters but which may be combined in the desired manner for each individual occasion to impart the correct performance to projectiles fired from the artillery gun.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: March 12, 2002
    Assignee: Bofors AB
    Inventor: Sten Hallqvist
  • Patent number: 6343552
    Abstract: A system and method for use in providing a peripheral seal between the case and lid of a MACS modular unit or other workpiece interface, the system including a workpiece holding device for carrying and moving a workpiece of interest in relation to a solvent dispensing system and a solvent dispensing system for dispensing a metered amount of solvent into the interface to be sealed on the workpiece, the solvent dispensing system further including a metering device for dispensing a predetermined known amount of the solvent, a stationary dispensing valve for dispensing solvent supplied from the metering device over a predetermined time, a re-supply system for reloading the metering device of the known amount of liquid solvent; and a control system for controlling the operation of the workpiece holding device and the solvent dispensing system.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: February 5, 2002
    Assignee: Alliant Techsystems Inc.
    Inventor: Marlon D. Harris
  • Patent number: 6079202
    Abstract: A modular rocket motor having a cylindrical housing with one end having an inwardly curved rim and the other end having internal threads. A heat-resistant plastic liner and a threaded nozzle cap are slidingly insertable with the cylindrical housing, with the threaded nozzle cap mating with the internal threads of the cylindrical housing. The motor is threaded into a rocket frame. A nozzle cap with liner attached thereto for a modular rocket motor that is colour coded to indicate the performance classification of the rocket motor.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: June 27, 2000
    Inventors: Anthony J. Cesaroni, Scott Bartel, Korey R. Kline
  • Patent number: 5763820
    Abstract: A wrapped gas generant cartridge is incorporated in an inflator of a vehicle occupant restraint system. The gas generant cartridge includes a stacked, aligned plurality of substantially flat annular wafers of gas generant material having a central opening therethrough. A wrap of sheet material surrounds the plurality of wafers and has marginal end panels folded along the end surfaces of the plurality of wafers, leaving at least one end opening exposed for receiving an ignition tube of the inflator. The wrap of sheet material is selected from metal foil, expanded metal, cellulose, thermoplastics, including polyolefin shrink wrap, with tape, adhesive or adhesive laminates holding the wrap in position. The gas generant cartridge is received in a filter and screen pack within the inflator.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: June 9, 1998
    Assignee: Autiliv ASP, Inc.
    Inventors: Paul T. Philpot, David W. Lindsey, Scott A. Jackson
  • Patent number: 5763816
    Abstract: An explosive primer designed for use with a fuse cord and an initiating device. The primer consists of a container, which holds the explosive, and a cap received on the open end of the container. The container has two lateral opposing cord tunnels which run the length of the container. The cord tunnels protect the fuse cord on the inside of the primer. The cap has two apertures which align with cord tunnels in the container. The cap has capwell for receiving the detonator. The capwell is pierceable so that a detonator can be inserted through the capwell and embedded directly in the explosive composition inside the container. In addition, the primer contains grooves in the bottom of the container and in the cap. The grooves communicate with the apertures and the recess in the cap and the cord tunnels to create a continuous conduit so that a fuse cord can be threaded therethrough to secure the cord to the primer and selectively position the primer in a borehole at the blast site.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: June 9, 1998
    Assignee: Slurry Explosive Corporation
    Inventor: Paul Scott Keeling
  • Patent number: 5747723
    Abstract: A modular artillery charge system consists of two distinct solid propellant harge modules. Each module consists of a three-piece combustible cartridge case design and bi-directional center core core ignition system. The three-piece combustible cartridge case consists of a combustible case body, having an open end and a end; a cap, having a closed end and an open end; and a center tube. The closed ends of the body and the cap have a hole in the center. The center core tube is positioned longitudinally through the combustible case body, and contacts the closed ends of both the cap and the body. The bi-directional center core ignition system comprises a core igniter bag and two end igniter bags. The core igniter bag occupies the center core tube, and the end igniter bags contact the core igniter bag. The bi-directional center core ignition system may be ignited by percussion primers or a laser ignition system. The first module is used individually or in groups of two.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: May 5, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Gregory Buckalew, Lydia Chang, Richard Cirincione, Robert Garufi, Warren Graham, Philip Hui, James Rutkowski, Scott Westley
  • Patent number: 5726379
    Abstract: A live powder propellant charge combustible container for field artillery ammunition,having substantially the same overall dimensions as a conventional slow powder propellant charge container used for long range firing and having,means (R, E) to reduce its inner volume (7) to enclose the quantity of live powder necessary for the field artillery to be used to carry out short range firing, and somemeans (R, E) to be able to differentiate it, visually and by touch, from a conventional slow powder container.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: March 10, 1998
    Assignee: Giat Industries
    Inventors: Bernard Kotas, Laurent Deguen
  • Patent number: 5714710
    Abstract: Ammunition round comprising a primary cartridge (1) and a secondary cartridge (2) provided with mutually cooperable push fit connection means for connecting the two cartridges during loading. The cartridges (1, 2) incorporate sockets (10, 12) which contain and are connected by a connecting piece (14). Socket (12) includes a cavity (20) having sufficient longitudinal depth to allow some axial movement of the connecting piece (14) ensuring that strain on the connecting piece (14) during loading is minimized.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: February 3, 1998
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventor: Graham Richard Roach
  • Patent number: 5712444
    Abstract: A priming mechanism for a propellant charge, notably for field artillery ammunition, comprising a tube (2) made of a combustible material, whose inner wall is lined with a priming charge which marks out a central channel (5) inside the tube (2), characterised in that the priming charge is formed of several successive layers (3) of black powder granules with a binder (4).
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: January 27, 1998
    Assignee: Giat Industries
    Inventors: Bernard Brion, Claude Julien
  • Patent number: 5698811
    Abstract: An igniting unit for a propellent charge, including a central perforated flame guiding tube having propellant rods which are oriented in an axial direction arranged on the outer surface thereof. On the inner surface of the flame guiding tube and on the casing surface of the propellant rods, however, not on the end surfaces of the latter, there is provided an igniting coating, and in which the igniting coating which is provided on the inner surface of the flame guiding tube is enhanced by an igniting powder strip which is oriented to extend in an axial direction.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: December 16, 1997
    Assignee: Diehl GmbH & Co.
    Inventor: Axel Pfersmann
  • Patent number: 5672842
    Abstract: A case for use with a propellant charge has a substantially cylindrical envelope. The envelope is formed from a combustible material. At least one support, that is formed from a combustible material, is coated to a substantially uniform thickness on at least one reception section with an anti-wear additive. A mechanism, formed from a combustible material, positions the support relative to the envelope such that, after assembly, at least one empty space is defined between an inner surface of the envelope and the anti-wear additive.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: September 30, 1997
    Assignee: Giat Industries
    Inventors: Bernard Brion, Michel Hossard
  • Patent number: 5670735
    Abstract: An igniting system for a projectile propellant includes a combustible support tube having an outer surface and an inner surface; a plurality of throughgoing apertures provided in the support tube; a free igniting channel coaxially surrounded by the support tube; and an ignition transfer charge formed of a pyrotechnical hard foam layer having a thickness between 1 and 3 mm and being carried on the outer surface of the support tube. The hard foam layer is composed of a large-pore inner layer and two opposite surface layers which are of densely closed structure and between which the inner layer is sandwiched.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: September 23, 1997
    Assignee: Rheinmetall Industrie GmbH
    Inventors: Helmut Ortmann, Gunter Frye, Rainer Bohm, Manfred Lubben
  • Patent number: 5649638
    Abstract: A device for joining a first face of a first container to a second face of a second container, in which the first face and the second face are alignable along a longitudinal axis, includes a plurality of hooks and a hook receiving portion. The plurality of hooks are spaced around a periphery of the first face of the first container. The hooks have tips and are movable in a direction parallel to the longitudinal axis. The hook receiving portion is disposed around a periphery of the second face of the second container. The hook receiving portion includes a groove shaped to receive the tips of the hooks so that the first container can be joined to the second container. As a result, the device permits two containers to be joined securely yet disassembled quickly.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: July 22, 1997
    Assignee: Giat Industries
    Inventors: Richard Roy, Marie-Christine Paris
  • Patent number: 5607057
    Abstract: A device for joining a first container to a second container to be inserted into the chamber of a weapon includes a first neck disposed adjacent a first face of the first container, a second neck disposed adjacent a second face of the second container and a deformable ring. The first container and the second container have container diameters that are less than a chamber diameter D1. The first face of the first container is alignable with a second face of the second container along a longitudinal axis. The second neck includes a circular cusp. The deformable ring is disposed around the first neck and includes an annular lip. The deformable ring is shaped to slide substantially parallel to the longitudinal axis toward the second container to engage the cusp. The deformable ring has a ring diameter D3 that is greater than the chamber diameter D1.
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: March 4, 1997
    Assignee: Giat Industries
    Inventors: Nicolas Eches, Yves Cappy
  • Patent number: 5598928
    Abstract: A device for joining a first container to a second container, in which a first face of the first container is alignable with a second face of the second container along a longitudinal axis, includes a first narrowed portion, a second narrowed portion and a sleeve. The first narrowed portion is disposed adjacent the first face of the first container. The second narrowed portion is disposed adjacent the second face of the second container. The sleeve is disposed around the first narrowed portion and is shaped to slide parallel to the longitudinal axis from a first position to a second position. The sleeve in the second position at least partially covers and threadedly engages a corresponding threaded portion of the second container. As a result, the device permits two containers to be joined securely yet disassembled quickly.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: February 4, 1997
    Assignee: Giat Industries
    Inventors: Michel Hossard, Yves Cappy
  • Patent number: 5463956
    Abstract: The present invention is directed to a liner comprising a means to decopper, a means to quench heat transfer, and a means to substantially dissolve residue in medium and large caliber guns.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: November 7, 1995
    Assignee: ICI Americas Inc.
    Inventor: Darwin B. Harting
  • Patent number: 5454323
    Abstract: The present invention relates to combustible container elements (24) for artillery ammunition.The said elements, obtained by felting, compacting and stoving, have a plane axisymmetric part (2,7), an outer wall (5,10) and an inner neck (4,9) which are integral. Two complementary elements thus make it possible to obtain combustible containers which are easy to charge with loose powder (25) and which present no problem in positioning the central channel since the latter consists of the inner necks (4,9). A complementary combustible ignition tube (26) made of agglomerated powder is advantageously positioned inside the central channel thus defined.The invention also relates to a method of obtaining these elements by using a specially adapted felting mould.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: October 3, 1995
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventor: Bernard Conil
  • Patent number: 5375528
    Abstract: A light weight explosive mass for a spherical charge of high explosives used to simulate nuclear bursts at ground or above ground level or underwater wherein the sphericity of the loaded explosive mass must be maintained within tight tolerance, exemplary of which are particulate ammonium nitrate/fuel oil (ANFO) explosive and liquid nitromethane explosive, contained in a flexible fabric shell that becomes spheroidal by reason of being filled with the explosive, is disclosed.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: December 27, 1994
    Inventors: John A. Brinkman, Leon Shenfil, Donald N. Thatcher
  • Patent number: 5282423
    Abstract: A modular propellant charge (10) composed of N propellant charge modules (1; 11-16) each having a length Lo. In order to obtain an economical, durable, easily released connection between the propellant charge modules (1; 11-16), a displaceable sleeve (6; 17-22) of a length L is axially slidably arranged on the exterior of each propellant charge module (1; 11-16) with the relationship ##EQU1## applying for the length L. The displaceable sleeves are utilized to interconnect adjacent modules.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: February 1, 1994
    Assignee: Rheinmetall GmbH
    Inventors: Gunter Sikorski, Albert Schulze, Eckhard Rahnenfuhrer, Dieter Grabner, Frank Achilles
  • Patent number: 5227577
    Abstract: A device for firing ammunition includes a combustion chamber accommodating several propellant charge members which latter contain a propellant charge and an ignition system for igniting the propellant charge. A fixedly disposed primary coil which receives an ignition signal is provided at the combustion chamber while a secondary coil is arranged in each propellant charge member, this secondary coil being connected to a resistor initiating the ignition system. The magnetic field, changing with time, which is produced by the primary coil penetrates the combustion chamber and induces a current in the secondary coils of each propellant charge member at the same time so that the ignition systems of all propellant charge members are simultaneously activated and ignite all propellant charges at once. On account of the simultaneous ignition of the propellant charge members, rapid firing sequences can be attained.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: July 13, 1993
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Johannes Eich, Gerhard Kordel, Matthias Kuhla
  • Patent number: 5090323
    Abstract: A containment bag has two sections. A forward section with one end secured positively in the sabot-obturator interface region during the assembly of the sabot, obturator, projectile and casing adapter. The other end of the forward section has a circumferential securing band, for example a band of loops of the type marketed under the trademark Velcro. An aft bag section is secured to the cartridge casing at one end in a conventional manner and the other end has a circumferential securing band; Velcro hooks for example. The bands join the two sections of the bag together when the cartridge casing is brought into position to be bonded to the cartridge adapter.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: February 25, 1992
    Assignee: 501 Alliant Techsytems Inc.
    Inventors: John A. Kallevig, James L. Kennedy
  • Patent number: 5081930
    Abstract: A gun propellant comprises ammonium azide in finely divided form and at least one conventional propellant and/or explosive composition. The ammonium azide is free of any heavy metals capable of reacting with the ammonium azide to form metallic azides. The ammonium azide may be in pulverulent form or may be fabricated into a grain having a specific geometry. The ammonium azide may also be employed as a pyrotechnic formulation in a variety of environments.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: January 21, 1992
    Assignee: Martin Marietta Corporation
    Inventor: Laurence O. Williams
  • Patent number: 5063848
    Abstract: An igniter bag for a cannon cartridge is disclosed which comprises a generally toroidal annular bag of combustible fabric such as cotton or rayon containing an ignition powder. The bag has a plurality of radial seams separating the bag and the powder contained therein into separate adjacent compartments within the bag so that movement of the powder within the bag is substantially restricted. This construction prevents side to side shifting of the ignition powder during storage, handling and loading of the cartridge.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: November 12, 1991
    Assignee: Olin Corporation
    Inventors: Mark A. Tucker, Robert M. Musgrave
  • Patent number: H1087
    Abstract: A metal case to non-metal bonding system that has a long shelf life and will withstand high temperature and pressure operating conditions and that satisfies requirements relating to material compatibility, surface preparation, strength, aging, ease of application and stability over a broad range of temperatures comprises a cylindrical metal case and a non-metallic insulation attached to the interior surface of the case wherein the case interior surface is sand blasted and cleaned, a corrosive resistant coating is applied and cured, a metal to rubber adhesive coating is brush applied and cured, uncured insulation material is laid up against the interior surface of the cured adhesive, several layers of insulation material are used wherein a vacuum bag is used between layers to attach adjacent layers, the uncured insulation, adhesive and metal liner are cured and vulcanized bonded, and the interior surface is machined to final dimensions to receive a solid propellant grain assembly.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: August 4, 1992
    Inventor: Evester Sullivan