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WO2012173662A1 - Cartouche de munition perfectionnée pour arme à chargement par la bouche - Google Patents

Cartouche de munition perfectionnée pour arme à chargement par la bouche Download PDF

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Publication number
WO2012173662A1
WO2012173662A1 PCT/US2012/020071 US2012020071W WO2012173662A1 WO 2012173662 A1 WO2012173662 A1 WO 2012173662A1 US 2012020071 W US2012020071 W US 2012020071W WO 2012173662 A1 WO2012173662 A1 WO 2012173662A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge case
propellant
ammunition round
bullet
consumable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2012/020071
Other languages
English (en)
Inventor
William J. Worrell
Drew Lee Goodlin
Richard Quesenberry
Jeffrey Bandel
Benjamin R. Vaughan
Sandra L. Case
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northrop Grumman Innovation Systems LLC
Original Assignee
Alliant Techsystems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US13/160,160 external-priority patent/US20120260814A1/en
Application filed by Alliant Techsystems Inc filed Critical Alliant Techsystems Inc
Publication of WO2012173662A1 publication Critical patent/WO2012173662A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/192—Cartridge cases characterised by the material of the casing wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/08—Ordnance projectiles or missiles, e.g. shells
    • F42B30/10—Mortar projectiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/188—Manufacturing processes therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/777—Weapons
    • B29L2031/7772—Cartridges

Definitions

  • This invention relates generally to ammunition for muzzle-loader guns, and more particularly to muzzle-loader ammunition having a consumable cartridge case. Some embodiments are directed to the manufacture and methods of use of such devices.
  • This invention contemplates a number of embodiments where any one, any combination of some, or all of the embodiments can be incorporated into muzzle loaded ammunition. In addition, this invention contemplates a number of embodiments where any one, any combination of some, or all of the embodiments can be incorporated into a method of using such muzzle loaded ammunition.
  • At least one embodiment of the present invention is directed to a muzzle loaded ammunition round comprising a bullet and a cartridge case.
  • the round is a fixed round.
  • the cartridge case is hollow and is filled with at least one propellant composition.
  • the bullet is commonly engaged to the propellant composition at least via the cartridge case.
  • the energy with which the bullet exits the firearm is a ratio proportional at least to the burn rate, the charge weight, and at least one physical property of the bullet.
  • the burn rate is proportional to the combustibility of both the propellant and the cartridge case.
  • the burn rate and at least one physical property of the bullet are precisely calibrated to each other so as to yield ballistic properties in which the bullet is fired with a desired amount of kinetic energy and within the design constraints of the firearm.
  • At least one embodiment of the present invention is directed to a muzzle loaded ammunition round in which the cartridge case is constructed out of a consumable material.
  • the consumable material can be energetic.
  • One of the calibrated physical properties of the bullet is one selected from the group consisting of: size, mass, density, caliber, shape, and any combination thereof.
  • the burn rate can be controlled by modifying the density of the consumable material of the cartridge case.
  • the cartridge case can be constructed at least in part out of nitrocellulose.
  • the consumable material is a foamed celluloid.
  • At least one embodiment of the present invention is directed to a muzzle loaded ammunition round in which the bullet is positioned within a sabot and the sabot is engaged to the cartridge case.
  • the sabot can be constructed at least in part out of a thermoplastic material. At least one of the calibrated physical properties of the bullet is separable from the sabot.
  • At least one embodiment of the present invention is directed to a muzzle loaded ammunition round constructed and arranged to be penetrated by a breech block. At least one embodiment of the present invention is directed to a muzzle loaded ammunition round further comprising an electrically conductive probe extending into the end of the cartridge case not facing the bullet.
  • At least one embodiment of the present invention is directed to a muzzle loaded ammunition round in which the propellant composition is one selected from the list consisting of: smokeless propellant, single base nitrocellulose, nitrocellulose propellant, black powder propellant, pyrotechnic propellant, non-pyrotechnic propellant, and any combination thereof.
  • the propellant composition can occupy a volume substantially equal to at least 90% of the volume of the cartridge case.
  • the propellant composition can include at least one energy modifying material.
  • the at least one energy modifying material can be an energy reducing material.
  • the propellant composition can also include a pyrotechnic material or a stabilizer compound.
  • the stabilizer compound can be 1% or less by volume of the propellant composition.
  • FIG. 1 is a lateral view of a round of improved muzzle loaded
  • FIG. 2 is a perspective view of parts in a round of improved muzzle loaded ammunition.
  • FIG. 3 is a perspective view of a round of improved muzzle loaded ammunition comprising a breech block.
  • FIG. 1 there is shown an embodiment of the invention featuring a muzzle loaded ammunition round (101) having a bullet (102) at its front end held in place by sabot (103) which in turn is engaged to a cartridge case (104).
  • bullet is a projectile missile fired by a firearm intended and designed for the purpose of striking a target.
  • Bullets include saboted bullets, full bore non-saboted bullets, and shotgun shot.
  • Bullets do not include sabot, wads, propellant, cartridge cases, compressed gas, or any other material ejected from the barrel of a fired firearm other than the projectile missile intended and designed to strike a target.
  • the cartridge case (104) is generally cylindrical in shape and includes an internal lumen (106).
  • a propellant (107) is contained within the lumen (106) of the cartridge case (104). Ignition of the propellant (107) provides the energy that propels the saboted bullet (102) at a target.
  • the propellant can be legacy black powder, substitute pyrotechnic propellant, as well as smokeless propellant, nitrocellulose propellant, and other similar materials.
  • the round (101) is a fixed round.
  • the definition of the term "fixed round” is a round of ammunition which when stored outside of the firearm chamber prior to loading the round, has the propellant and the bullet commonly engaged to each other via direct engagement or via one or more other components of the round.
  • commonly engaged means two linked items that are either directly engaged to each other or are each engaged to one or more linking items, each linking item in turn is linked to either another linking item or to one or both of the linked items.
  • Prior art muzzle loaded ammunition are not fixed rounds and the propellant (107) and bullet (102) are free of any common or shared engagements prior to being loaded into a firearm and can be stored separately.
  • the sabot (103) is constructed out of thermoplastic or other materials which provides mechanical means to obturate and launch the bullet (102).
  • the definition of the word "obturate” is to seal a bullet in a relative position or location.
  • the sabot (103) is engaged to the cartridge case (104) at the rear of the sabot (103).
  • Other contemplated embodiments include a cartridge case (104) which extends around at least a portion of the sabot (103) and/or the bullet (102), and a non-sabot based bullet (102) with a diameter equal to that of the cartridge case (104).
  • the cartridge case (104) itself functions as a sabot and holds the bullet (102) in place.
  • the sabot (103) and the bullet (102) can be calibrated to have the optimal separation properties for the desired ballistic effect.
  • the bullet (102) is a full-diameter bullet which does not utilize a sabot.
  • the cartridge case (104) is constructed at least in part out of a consumable material.
  • consumable material is highly energetic. Examples of such material are described in U.S. Pat. Nos. 5,323,707, 4,759,885 and 3,901,153 and published U.S. patent application 2006/0 169164 all of whose contents are hereby incorporated by reference in their entirety.
  • the consumable cartridge case (104) is constructed out of nitrocellulose. Modifying the density of the consumable cartridge case material can modify its burn rate. Lower density consumable materials have a higher burn rate than higher density consumable materials.
  • the consumable material is felted and or molded.
  • felted the consumable material is formed out of slurry which is shaped around a mandrel with heat and pressure.
  • the density of the consumable cartridge case material can be calibrated (tailored) by felting.
  • the consumable cartridge case material has a low density yet has appropriate support strength.
  • the consumable material is a foamed celluloid.
  • sheets of the foamed celluloid are heated to a predetermined softening temperature (about 266 °F (130 °C)).
  • the heat processed sheets are then stretched around a mandrel (or cylindrical die) of a desired diameter and vacuumed to pull the soften sheet into the desired shape.
  • a second half of a forming die can be used with pressure to finalize the desired shape or dimensions of the cartridge case.
  • the seam where the ends of the sheet meet is glued with a cyanoacrylate.
  • the foamed celluloid material is extruded in relatively long tubes using a thermoplastic extrusion process, such as screw extruders, batch presses with associated annular extrusion dies, and similar processes.
  • the extruded tubes are cut to the desired length and closed on both ends with small end caps.
  • the small end caps produced using a stamping operation or similar operation.
  • the small end caps are attached to the cut cylindrical tube using a mechanical fit with an adhesive, sonic welding, and other attachment methods and combinations thereof.
  • one end of the cylindrical tube must be closed (i.e. a small end cap must be attached at the end) prior to loading the propellant into the cartridge case.
  • the other end of the cylindrical tube would be closed after the capsule is filled with the desired charge of propellant.
  • the sheets can be softened as described above using the heat process and wrapped around a mandrel or cylindrical die to form long cylinders with ends that can be closed using the small end caps described above.
  • multiple layers of foamed celluloid can be wrapped around the mandrel in a continuous spiral wrap to form another long cylinder which can be closed using the small end caps as described above.
  • an unfoamed celluloid material that includes the foaming agent in its formulation can be used where the foaming reaction occurs when the material is shaped around the mandrel or die.
  • long cylindrical tubes of unfoamed celluloid material with a foaming agent are first extruded and then the foaming reaction occurs under heat and pressure within a long annular extrusion die.
  • the unfoamed celluloid material that includes the foaming agent is injected or pressed into a cavity of a two part mold that contains the shape of the desired capsule and has vacuum capability to expand the foam once it is pressed into the cavity.
  • the propellant (107) is a non-pyrotechnic propellant such as smokeless propellant and/or nitrocellulose based propellant.
  • a non-pyrotechnic propellant such as smokeless propellant and/or nitrocellulose based propellant.
  • Non-pyrotechnic propellants are highly energetic when used within the high pressure environment of a firearm barrel or chamber in the process of firing a projectile. Such highly energetic propellants when used in the incorrect quantity relative to the specific ballistic pressure of a given bullet in a given firearm can result in unwanted or excessive pressure.
  • the burn rate of the propellant was made safe by using pyrotechnic propellants which utilize a combination of finely powdered fuel (such as black powder) and oxidant, with or without additives to reduce the burn rate/energy output of a given propellant charge weight.
  • the ammunition (101) is constructed and arranged with its rear portion positioned facing a breech block part of the muzzle loading firearm (105) when loaded into a firearm.
  • the ammunition (101) is constructed and arranged with its rear portion positioned facing a breech block part of the muzzle loading firearm (105) when loaded into a firearm.
  • the ammunition (101) is constructed and arranged to be used in
  • the breech block (105) penetrates the cartridge case (104) with a probe (109) or bayonet having a sharp point (110) that forms a hole which allows hot materials from the ignited primer (108) to enter the rear portion (114) of the cartridge case (104) and ignite the propellant (107).
  • the probe (109) can be tubular with a conical tip, can be conical, can be serrated, or can be any combination thereof, or can be of any shape known in the art.
  • FIG. 2 illustrates the parts of an ammunition round (201) in which the bullet (202), sabot (203), cartridge case (204), lumen (206), and propellant (207) are constructed and arranged to work with a spitter-type breech block (205).
  • the probe (209) of the spifter-type breech block (205) comprises a tube (211) with a sharpened end (213) which penetrates the cartridge case (204). After penetration, hot materials from the ignited primer travel through the interior (212) of the tube (211) into a region of the lumen (206) significantly distant from the rear portion (214) of the cartridge case (204).
  • the length of the tube (211) and/or the cartridge case (204) can be adjusted to insert the hot primer materials into a specific depth of the cartridge case (204) which will impart optimal ballistic properties to the round (201).
  • FIG. 2 illustrates the tube (211) having a sharpened end (213) sharpened with an oblique slope formed out of the front most tip of the tube wall
  • the inventive concept contemplates other sharpening arrangements including but not limited to pointed tips, triangular tips, conical tips, conical tubes, and any combination thereof.
  • the probe (209) penetrates the cartridge case (204) prior to firing and holds the round (201) in place until the round (201) is fired.
  • FIG. 3 illustrates an embodiment in which the breech block (305) is a component of the round (301) itself and has a member (311) extending within the cartridge case (304) prior to firing the round (301).
  • the member (311) is a tube having an interior (312) with an open top (313) facing the lumen (306) of the cartridge case (304).
  • the exterior surface of the tube is in contact with propellant (307).
  • the interior surface of the tube (312) is in contact with or is filled with propellant (307).
  • the tube (311) is constructed and arranged to ignite the propellant (307) with an electric pulse that is delivered to the cartridge lumen (306).
  • the member (311) is a tube having an interior (312) with an open top (313) facing the lumen (306) of the cartridge case (304).
  • the exterior surface of the tube is in contact with propellant (307).
  • the interior surface of the tube (312) is in contact with or is filled with propellant (307).
  • the tube (311) is constructed and arranged to ignite the
  • the tube (311) is constructed and arranged to ignite the propellant (307) with an electric charge that is delivered to propellant (307) within the tube (311).
  • the tube (311) is constructed out of a conductive material.
  • the tube (311) comprises one or more veins of conductive material integrated into the tube walls.
  • the round is constructed and arranged to cooperatively work with the firearm electronic ignition system described in U.S. Pat. No. 7,197,843 all of whose contents are hereby incorporated by reference in its entirety.
  • the propellant (107) is a non-pyrotechnic propellant such as smokeless propellant and/or nitrocellulose based propellant.
  • a non-pyrotechnic propellant such as smokeless propellant and/or nitrocellulose based propellant.
  • Non-pyrotechnic propellants are highly energetic when used within the high pressure environment of a firearm barrel or chamber in the process of firing a projectile. Such highly energetic propellants when used in the incorrect quantity relative to the specific ballistic pressure of a given bullet in a given firearm can result in unwanted or excessive pressure.
  • the burn rate of the propellant was made safe by using pyrotechnic propellants which utilize a combination of finely powdered fuel (such as black powder) and oxidant, with or without additives to reduce the burn rate/energy output of a given propellant charge weight.
  • the optimal quantity of non- pyrotechnic propellant charge weight relative to the weight needed for ballistic properties of a given bullet can be precisely determined and a cartridge case including that exact charge weight is fixedly engaged (with or without a sabot) to the given bullet.
  • the round can have a charge weight that is exactly calibrated with particular bullets based on the bullet's size, mass, density, caliber, shape, or any other physical attribute and any combination thereof.
  • the propellant is black powder or substitute pyrotechnic propellant.
  • the black powder or substitute pyrotechnic propellant are calibrated for optimum ballistic properties. Examples of such a substitute pyrotechnic propellant is described in U.S. Pat. No. 4,128,443 whose contents are hereby incorporated by reference in its entirety.
  • the volume, length, or diameter, of either the cartridge case or the propellant within the cartridge case, or the grains of powder in the propellant, or any combination have the same dimensions or grains of powder described in U.S. Pat. No. 5,726,378 whose contents are hereby incorporated by reference in its entirety.
  • the geometry of the ammunition is calibrated for optimal ballistic effect. Because the manufacturer has complete control over the assembly of all of the components in fixed ammunition, the manufacturer can calibrate such properties as the density of charge, the load density, the area and shape of an inhibited propellant (in which a portion of the surface area has been treated to control or prevent burning), and/or the column length (length of the propellant and/or pyrotechnic composition).
  • the round's geometry is calibrated to allow the propellant to occupy 90% of the volume the cartridge case.
  • the ammunition as a whole is sized to be easily fit within the firearm.
  • the felting of the consumable cartridge casing is calibrated to set the porosity to a degree that it facilitates optimal ballistic effect. Porosity can be increased to increase burn rate or decreased to decrease burn rate.
  • the ballistic performance of the round matches that described in described in U.S. Pat. No. 5,726,378 whose contents are hereby incorporated by reference in its entirety.
  • the composition of the consumable cartridge case and/or the propellant are calibrated to produce the optimal burn rates for firing a given caliber bullet.
  • the granulation of a propellant charge weight is calibrated to produce the optimal burn rates for firing a given caliber bullet.
  • the stoichiometric ratios of the various compositions in the consumable cartridge case and/or the propellant are balanced to provide the optimal propellant charge. These ratios can include black powder propellants, non-pyrotechnic propellants, and any combination thereof.
  • a propellant based on nitrocellulose is used.
  • the nitrocellulose is single base (it is the only explosively energetic component in the propellant) and its mass and concentration are balanced for optimal ballistic effect. Even though single base nitrocellulose is three times as energetic as black powder it can be safely used in combination with the optimal amount of energy reducing materials and with carefully controlled charge weights.
  • energy reducing materials include but are not limited to: inert plasticizers, inert solids, inorganic potassium salts, granular polymeric materials, and any combination thereof.
  • Examples of energy reducing granular polymeric materials include but are not limited to polyvinyl alcohols, polyesters, other aliphatic materials, other aromatic materials and any combination thereof.
  • a pyrotechnic material mixed in with the propellant is a pyrotechnic material.
  • a pyrotechnic material makes smoke, reduces the energy of the combusting propellant, and is less susceptible to excessive burning rates in the high pressure environment of the firearm barrel.
  • the pyrotechnic material is used to calibrate the burn rate to the optimal level by reducing the energy of the propellant.
  • the pyrotechnic material is a weak oxidizing agent.
  • the pyrotechnic material is KNO 3 .
  • the pyrotechnic material is used to produce visible smoke that makes firing the round appear more dramatic.
  • a stabilizer mixed in with the propellant is a stabilizer.
  • a stabilizer is a compound which reacts with the NOx radicals which naturally evolve out of nitrocellulose propellants.
  • the stabilizer is less than or equal to 1% of the volume or mass of the propellant. The stabilizer prevents degradation of the propellant assuring that the calibrated ballistic properties are retained over time.
  • the stabilized propellant combined with the non-hygroscopic cartridge case results in a highly rugged ammunition round with a long shelf life.
  • any dependent claim which follows should be taken as alternatively written in a multiple dependent form from all prior claims which possess all antecedents referenced in such dependent claim if such multiple dependent format is an accepted format within the jurisdiction (e.g. each claim depending directly from claim 1 should be alternatively taken as depending from all previous claims).
  • each claim depending directly from claim 1 should be alternatively taken as depending from all previous claims.
  • the following dependent claims should each be also taken as alternatively written in each singly dependent claim format which creates a dependency from a prior antecedent-possessing claim other than the specific claim listed in such dependent claims below.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

L'invention concerne une cartouche de munition (101) à chargement par la bouche, comprenant une balle (102) et une douille consumable. La douille (104) est creuse et remplie d'au moins une composition d'agent propulsif, la douille (104) étant construite à partir d'un matériau consumable tel que du celluloïd expansé. La balle (102) est normalement en contact avec la composition d'agent propulsif (107) au moins par l'intermédiaire de la douille (104), la composition d'agent propulsif (107) ayant un poids de charge donné.
PCT/US2012/020071 2011-06-14 2012-01-03 Cartouche de munition perfectionnée pour arme à chargement par la bouche Ceased WO2012173662A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/160,160 US20120260814A1 (en) 2008-04-25 2011-06-14 Advanced Muzzle Loader Ammunition
US13/160,160 2011-06-14

Publications (1)

Publication Number Publication Date
WO2012173662A1 true WO2012173662A1 (fr) 2012-12-20

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PCT/US2012/020071 Ceased WO2012173662A1 (fr) 2011-06-14 2012-01-03 Cartouche de munition perfectionnée pour arme à chargement par la bouche

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991168A (en) * 1957-11-18 1961-07-04 Isidore G Nadel Fibrous solid propellants in sheet form
US3901153A (en) 1972-10-04 1975-08-26 Us Air Force Wrapped laminated felted monolithic combustible cartridge case
US4128443A (en) 1975-07-24 1978-12-05 Pawlak Daniel E Deflagrating propellant compositions
US4759824A (en) * 1985-01-03 1988-07-26 Mueller Dietmar Apparatus for the manufacture of combustible cases based on nitrocellulose as shaped ammunition for tubular weapons
US4759885A (en) 1980-09-15 1988-07-26 Golden Powder Of Texas, Inc. Consumable case cartridge
US5323707A (en) 1991-08-05 1994-06-28 Hercules Incorporated Consumable low energy layered propellant casing
US5726378A (en) 1996-04-01 1998-03-10 Hodgdon Powder Company, Inc. Unitary propellant charge for muzzle loading firearms
US20060169164A1 (en) 2005-01-28 2006-08-03 Giovanni Brus Consumable cartridge for muzzle loading firearms
US7197843B2 (en) 2004-02-25 2007-04-03 Opg Gun Ventures, Llc Electronic ignition system for a firearm

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991168A (en) * 1957-11-18 1961-07-04 Isidore G Nadel Fibrous solid propellants in sheet form
US3901153A (en) 1972-10-04 1975-08-26 Us Air Force Wrapped laminated felted monolithic combustible cartridge case
US4128443A (en) 1975-07-24 1978-12-05 Pawlak Daniel E Deflagrating propellant compositions
US4759885A (en) 1980-09-15 1988-07-26 Golden Powder Of Texas, Inc. Consumable case cartridge
US4759824A (en) * 1985-01-03 1988-07-26 Mueller Dietmar Apparatus for the manufacture of combustible cases based on nitrocellulose as shaped ammunition for tubular weapons
US5323707A (en) 1991-08-05 1994-06-28 Hercules Incorporated Consumable low energy layered propellant casing
US5726378A (en) 1996-04-01 1998-03-10 Hodgdon Powder Company, Inc. Unitary propellant charge for muzzle loading firearms
US7197843B2 (en) 2004-02-25 2007-04-03 Opg Gun Ventures, Llc Electronic ignition system for a firearm
US20060169164A1 (en) 2005-01-28 2006-08-03 Giovanni Brus Consumable cartridge for muzzle loading firearms

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AUDRA CALLOWAY: "The shape of things to come", 3 June 2011 (2011-06-03), XP002674857, Retrieved from the Internet <URL:http://www.pica.army.mil/eVoice/article.aspx?ArticleID=1841> [retrieved on 20120423] *

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