CA2440629C - Propellant powder charge for barrel weapon - Google Patents
Propellant powder charge for barrel weapon Download PDFInfo
- Publication number
- CA2440629C CA2440629C CA2440629A CA2440629A CA2440629C CA 2440629 C CA2440629 C CA 2440629C CA 2440629 A CA2440629 A CA 2440629A CA 2440629 A CA2440629 A CA 2440629A CA 2440629 C CA2440629 C CA 2440629C
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- CA
- Canada
- Prior art keywords
- powder
- charge
- powders
- propellant
- different
- 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.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/02—Compositions or products which are defined by structure or arrangement of component of product comprising particles of diverse size or shape
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
-
- 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
- F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Cosmetics (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Medicinal Preparation (AREA)
- Powder Metallurgy (AREA)
- Heat Treatment Of Articles (AREA)
- Cleaning In General (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention relates to a method for producing propellant powder charges intended for heavy barrel weapons, such as canons and howitzers, and with a high degree of filling and a high energy content, and also to propellant powder charges produced in accordance with this method. The charges according to the invention are distinguished by the fact that 70 to 95% of their weight consists of a more coarsely grained powder and 30 to 5% consists of a granular powder with a smaller grain size. These two powders have the same of different chemical composition, and one or more of them can be surface-inhibited.
Description
Propellant powder charge for barrel weapon The present invention relates to a propellant powder charge with high progressivity and an extremely high degree o.f filling or loading density, intended primarily for large-bore barrel weapons.
In what today is the most common way of producing progressive propellant powder charges intended for large-bore barrel weapons, use is made primarily of what is known as granular holed powder, i.e. powder produced by extrusion in a matrix, cut up into short rods or cylinders, with one, seven, nineteen or thirty seven longitudinal priming channels. Because of its geometric configurations throughout its burn time, except during the absolutely final stage, multiple-hole powder of this kind has good progressive burn properties by virtue of the fact that as they are primed they burn from all the surfaces available for priming, i.e. from the outsides of the grains and from the insides of the priming channels, and, from these surfaces thereby primed, the powder will burn towards other primed surfaces during a successive increase of the burn area, and the gas release thereby also increases.
In order to launch a defined missile from a defined barrel weapon with a predetermined Vo, i.e. with a defined launch velocity immediately outside the barrel mouth, the propellant powder has to be able to deliver a certain additional amount of energy. This additional energy, which can be calculated theoretically with great accuracy, must be delivered during the missile's travel through the barrel. This in turn means that the propellant powder must have time to burn out during the time the missile is on its way through the barrel. The period of time which the propellant powder should then have to burn out and which is thus the same as the time the missile has to pass through the barrel can be called the "burn time".
If at the same time the length which a powder with the chemical composition in question is able to burn is also called the "burn time", this means that the distance between two adjacent priming channels in a multiple-hole powder which has the desired burn time will correspond to twice the burn length which the burn time in question permits. The distance from respective priming chanriels to the outer side of the granular powder in which the priming channel is formed must be the same size, provided that the powder grains have not been surface-treated with a burn inhibitor, which is sometimes done in order to increase the powder's progressivity. In summary, it is readily possible to produce multiple-hole powders with different progressivity using different numbers of priming channels, the individual powder grains being given a greater inherent volume depending on the number of priming channels. The progressivity of the powder can then in turn be accentuated by surface treatment with a suitable substance which is more difficult to ignite, but burnable.
The main trends in modern-day arterillery technology are to attempt by all possible means to increase the artillery's range of fire and its firing speed. In view of the refined methods which have been developed.in recent years, and which allow an opponent to determine quickly and with very great accuracy from where he has been shot at, it is thus also necessary to rapidly change the site of firing each time the barrel has been opened.
Increased firing speed is mainly achieved by the introduction of mechanized loading systems, and these will not be discussed in any detail here, nor will the tactical need for rapidly changing the firing positions. By contrast, it has been found that older artillery pieces too which are in good condition can be given much longer ranges of fire by means of newly developed and high-energy powder charges and possibly also newly developed shells. However, a problem in this context, which is often more serious than the strength limits of barrel and mechanism, is that the space in the rear part of the barrel, i.e. its chamber position, which is available for the actual propellant charge is too small to accommodate a conventionally configured propellant powder charge with sufficient energy content for this desired increase in the range of fire.
The present invention now relates to a method using holed or unholed granular powder to produce progressive propellant powder charges with a higher degree of filling or loading density and thus also loading weights than has previously been possible. The invention also includes propellant powder charges produced in accordance with said method.
The starting point for the method according to the invention is that, between the grains of a granular powder introduced into a container without any kind of organized order, there will automatically be a very large number of greater or lesser empty volumes which are many but small in the case of a finely grained powder and which are fewer but also larger in a coarser-grained powder.
Our solution to the problem now is so simple that it is astonishing that it has not been done earlier.
According to the underlying principle of the present invention, we in fact mix two or more different sorts of granular powder in proportions adapted for the particular purpose, where the more finely grained powder is able to fill the otherwise empty space between the larger powder grains. By suitable choice of powder types and suitable proportions between them, it is thus possible to produce charges which have loading densities lying very near to or higher than those one would have obtained if the powder grains had been rammed in manually for the best degree of packing, and the latter method is entirely excluded for practical use. The only additional measure which may be required in connection with the present invention is that the charges are vibrated during powder filling, which is also preferably done simultaneously with the two powder types. One or more of the powder types used can additionally be surface-treated or surface-inhibited in order to further control the progressivity.
The present invention thus makes it possible to produce propellant powder charges with a high loading density and exactly the high energy content which is required for the case in question. A propellant powder charge produced. according to the invention can thus contain 70-95% by weight of a coarsely grained multiple-hole powder, for example a 19-hole or 37-hole powder, and 30-5% by weight of a smaller multiple-hole powder, for example a 1-hole powder or 7-holed powder, and, in view of the desired final result, the powders can each have the same or different chemcial composition and be surface-inhibited (surface-treated with suitable burn inhibitors) or not surface-inhibited. The percentages shown above apply to the outer limits characterizing the invention, whereas, when in practice calculating the charges of the type characterizing the invention, they will in most cases be in the range of 75-85% by weight for the coarser multiple-hole powder and 25-15%
by weight for the multiple-hole and more finely grained powder or powders.
The nearest prior art we are aware of is the charge which is described in US 4,519,855 which describes a propellant powder charge for ballistic ammunition comprising a first powder component consisting of large bal].s or spheres easily fragmentable into small gra3.ns of a first powder component surrounded by= a= second powder component in the form of a conventionally granular powder which filla the space betwaan the large spheres of powder. Here too' the aim has been to produce a powder charge with the highest possible degree of filling taking into consideration the powder Lypes used, but the progreasivity of the charges obtained by this method will be based primarily on the large spheres of powder bursting apart =during combustion of the powder and thereafter burning like - conventionaLly granular powder, whereas the progxessivity for our specific charge is based entirely on the origirial geometrical shape of the powder grains used.
The present invention thus ralates to a method in which granular powder Is used to produce propellant powder chargee with high degree of filling or loading density and a.high energy content per charge. The i:ivention also covers tha charge produced by this method. The invention also makes it pos9ible to produca charges with precisely controlled progressive characteristics by virtue of the fact that it can be built up from different quantities of different powders which have radically different progreeeive char.actexistics.
The invention is thus based entirely on combining two or more types of granular powder having such geometric external shapes and grain sizes that the powder With the smaller grain size will in the best poaaible way fill the empty space between the larger grains.
5a In one method aspect, the invention provides a method for producing a progressive propellant powder charge for a barrel weapon, comprising mixing at least two types of granular powders of different grain size, of which at least the powder with the largest grain size has a progressive burn characteristic, wherein the powder with the largest grain size is holed, thereby having more internal priming channels than any other powder having a smaller grain size, and thereby has a progressive burn characteristic comprising burning all holed powder grains from the insides of the internal priming channels and, as subsidiary components of the actual charge, granular powders are chosen whose size, geometric shape and quantities are adapted to give the smallest possible empty spaces between the powder grains.
The invention has in all its features been defined in the attached patent claims and it can be illustrated by the following example.
Example: From a nitrocellulose powder of standard quality which we have used for many years for producing artillery powder, we produced on the one hand a 19-hole powder with grain size of 17 x 17 mm and a 1-hole powder with a grain size of 5 x 5 mm. Of these powders, we mixed 2.3 kg of the 19-hole powder with 0.5 kg of the 1-hole powder and thus obtained a charge with an energy content corresponding to 122% of the energy content in a standard charge which we had previously produced and which was made only from 19-hole powder.
Both the charge types are held in the same volume. The invention thus makes it possible to achieve considerable advantages by very small means.
In what today is the most common way of producing progressive propellant powder charges intended for large-bore barrel weapons, use is made primarily of what is known as granular holed powder, i.e. powder produced by extrusion in a matrix, cut up into short rods or cylinders, with one, seven, nineteen or thirty seven longitudinal priming channels. Because of its geometric configurations throughout its burn time, except during the absolutely final stage, multiple-hole powder of this kind has good progressive burn properties by virtue of the fact that as they are primed they burn from all the surfaces available for priming, i.e. from the outsides of the grains and from the insides of the priming channels, and, from these surfaces thereby primed, the powder will burn towards other primed surfaces during a successive increase of the burn area, and the gas release thereby also increases.
In order to launch a defined missile from a defined barrel weapon with a predetermined Vo, i.e. with a defined launch velocity immediately outside the barrel mouth, the propellant powder has to be able to deliver a certain additional amount of energy. This additional energy, which can be calculated theoretically with great accuracy, must be delivered during the missile's travel through the barrel. This in turn means that the propellant powder must have time to burn out during the time the missile is on its way through the barrel. The period of time which the propellant powder should then have to burn out and which is thus the same as the time the missile has to pass through the barrel can be called the "burn time".
If at the same time the length which a powder with the chemical composition in question is able to burn is also called the "burn time", this means that the distance between two adjacent priming channels in a multiple-hole powder which has the desired burn time will correspond to twice the burn length which the burn time in question permits. The distance from respective priming chanriels to the outer side of the granular powder in which the priming channel is formed must be the same size, provided that the powder grains have not been surface-treated with a burn inhibitor, which is sometimes done in order to increase the powder's progressivity. In summary, it is readily possible to produce multiple-hole powders with different progressivity using different numbers of priming channels, the individual powder grains being given a greater inherent volume depending on the number of priming channels. The progressivity of the powder can then in turn be accentuated by surface treatment with a suitable substance which is more difficult to ignite, but burnable.
The main trends in modern-day arterillery technology are to attempt by all possible means to increase the artillery's range of fire and its firing speed. In view of the refined methods which have been developed.in recent years, and which allow an opponent to determine quickly and with very great accuracy from where he has been shot at, it is thus also necessary to rapidly change the site of firing each time the barrel has been opened.
Increased firing speed is mainly achieved by the introduction of mechanized loading systems, and these will not be discussed in any detail here, nor will the tactical need for rapidly changing the firing positions. By contrast, it has been found that older artillery pieces too which are in good condition can be given much longer ranges of fire by means of newly developed and high-energy powder charges and possibly also newly developed shells. However, a problem in this context, which is often more serious than the strength limits of barrel and mechanism, is that the space in the rear part of the barrel, i.e. its chamber position, which is available for the actual propellant charge is too small to accommodate a conventionally configured propellant powder charge with sufficient energy content for this desired increase in the range of fire.
The present invention now relates to a method using holed or unholed granular powder to produce progressive propellant powder charges with a higher degree of filling or loading density and thus also loading weights than has previously been possible. The invention also includes propellant powder charges produced in accordance with said method.
The starting point for the method according to the invention is that, between the grains of a granular powder introduced into a container without any kind of organized order, there will automatically be a very large number of greater or lesser empty volumes which are many but small in the case of a finely grained powder and which are fewer but also larger in a coarser-grained powder.
Our solution to the problem now is so simple that it is astonishing that it has not been done earlier.
According to the underlying principle of the present invention, we in fact mix two or more different sorts of granular powder in proportions adapted for the particular purpose, where the more finely grained powder is able to fill the otherwise empty space between the larger powder grains. By suitable choice of powder types and suitable proportions between them, it is thus possible to produce charges which have loading densities lying very near to or higher than those one would have obtained if the powder grains had been rammed in manually for the best degree of packing, and the latter method is entirely excluded for practical use. The only additional measure which may be required in connection with the present invention is that the charges are vibrated during powder filling, which is also preferably done simultaneously with the two powder types. One or more of the powder types used can additionally be surface-treated or surface-inhibited in order to further control the progressivity.
The present invention thus makes it possible to produce propellant powder charges with a high loading density and exactly the high energy content which is required for the case in question. A propellant powder charge produced. according to the invention can thus contain 70-95% by weight of a coarsely grained multiple-hole powder, for example a 19-hole or 37-hole powder, and 30-5% by weight of a smaller multiple-hole powder, for example a 1-hole powder or 7-holed powder, and, in view of the desired final result, the powders can each have the same or different chemcial composition and be surface-inhibited (surface-treated with suitable burn inhibitors) or not surface-inhibited. The percentages shown above apply to the outer limits characterizing the invention, whereas, when in practice calculating the charges of the type characterizing the invention, they will in most cases be in the range of 75-85% by weight for the coarser multiple-hole powder and 25-15%
by weight for the multiple-hole and more finely grained powder or powders.
The nearest prior art we are aware of is the charge which is described in US 4,519,855 which describes a propellant powder charge for ballistic ammunition comprising a first powder component consisting of large bal].s or spheres easily fragmentable into small gra3.ns of a first powder component surrounded by= a= second powder component in the form of a conventionally granular powder which filla the space betwaan the large spheres of powder. Here too' the aim has been to produce a powder charge with the highest possible degree of filling taking into consideration the powder Lypes used, but the progreasivity of the charges obtained by this method will be based primarily on the large spheres of powder bursting apart =during combustion of the powder and thereafter burning like - conventionaLly granular powder, whereas the progxessivity for our specific charge is based entirely on the origirial geometrical shape of the powder grains used.
The present invention thus ralates to a method in which granular powder Is used to produce propellant powder chargee with high degree of filling or loading density and a.high energy content per charge. The i:ivention also covers tha charge produced by this method. The invention also makes it pos9ible to produca charges with precisely controlled progressive characteristics by virtue of the fact that it can be built up from different quantities of different powders which have radically different progreeeive char.actexistics.
The invention is thus based entirely on combining two or more types of granular powder having such geometric external shapes and grain sizes that the powder With the smaller grain size will in the best poaaible way fill the empty space between the larger grains.
5a In one method aspect, the invention provides a method for producing a progressive propellant powder charge for a barrel weapon, comprising mixing at least two types of granular powders of different grain size, of which at least the powder with the largest grain size has a progressive burn characteristic, wherein the powder with the largest grain size is holed, thereby having more internal priming channels than any other powder having a smaller grain size, and thereby has a progressive burn characteristic comprising burning all holed powder grains from the insides of the internal priming channels and, as subsidiary components of the actual charge, granular powders are chosen whose size, geometric shape and quantities are adapted to give the smallest possible empty spaces between the powder grains.
The invention has in all its features been defined in the attached patent claims and it can be illustrated by the following example.
Example: From a nitrocellulose powder of standard quality which we have used for many years for producing artillery powder, we produced on the one hand a 19-hole powder with grain size of 17 x 17 mm and a 1-hole powder with a grain size of 5 x 5 mm. Of these powders, we mixed 2.3 kg of the 19-hole powder with 0.5 kg of the 1-hole powder and thus obtained a charge with an energy content corresponding to 122% of the energy content in a standard charge which we had previously produced and which was made only from 19-hole powder.
Both the charge types are held in the same volume. The invention thus makes it possible to achieve considerable advantages by very small means.
Claims (9)
1. A method for producing a progressive propellant powder charge for a barrel weapon, comprising mixing at least two types of granular powders of different grain size, of which at least the powder with the largest grain size has a progressive burn characteristic, wherein the powder with the largest grain size is holed, thereby having more internal priming channels than any other powder having a smaller grain size, and thereby has a progressive burn characteristic comprising burning all holed powder grains from the insides of the internal priming channels and, as subsidiary components of the actual charge, granular powders are chosen whose size, geometric shape and quantities are adapted to give the smallest possible empty spaces between the powder grains.
2. The method according to claim 1, wherein the charge comprises at least two types of powders whose mutual progressivity has been optimized for the particular purpose.
3. The method according to claim 1 or 2, wherein the charge is a granular powder of the same or different chemical composition but with different grain sizes and thus with a different number of internal priming channels.
4. The method according to any one of claims 1 to 3, wherein powders are chosen so one or more are surface-inhibited.
5. The method according to any one of claims 1 to 4, wherein, of the powders intended to be included in the finished charge, all the powders are introduced contemporaneously with each other, and at the same time a casing or cartridge to which the powder is added and in which the charge is to be stored prior to use is subjected to vibrations which improve the degree of packing of the charge.
6. The propellant powder charge for a barrel weapon, produced by the method according to any one of claims 1 to 5, which contains at least two different types of granular powders of which at least one powder has progressive burn characteristics and in which one or more of the powders is surface-inhibited, and in which the burn characteristics of the different powders are adapted to one another while their mutual grain sizes and the quantities of each powder included in the charge are adapted to one another such that the empty space which necessarily remains between the powder grains is as limited as possible.
7. The propellant powder charge according to claim 6, for a heavy barrel weapon, consisting of 70-95% by weight of a coarsely grained powder, and 30-5% by weight of a finely grained powder, wherein the two powders have the same or different chemical compositions and at least one of the powders is progressive and one or more of the powders is surface-inhibited.
8. The propellant powder charge according to claim 7, consisting of 75 to 85% by weight of the coarsely grained powder and 25 to 15% by weight of the finely grained powder.
9. The propellant powder charge according to claim 7 or 8, wherein the coarsely grained powder is a 19-hole or 37-hole powder and the finely grained powder is a 1-hole or 7-hole powder.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0100863A SE518660C2 (en) | 2001-03-14 | 2001-03-14 | Methods of producing driver discharges for firearm guns and driver discharges prepared according to the method |
SE0100863-0 | 2001-03-14 | ||
PCT/SE2002/000361 WO2002074717A1 (en) | 2001-03-14 | 2002-03-01 | Propellant powder charge for barrel weapon |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2440629A1 CA2440629A1 (en) | 2002-09-26 |
CA2440629C true CA2440629C (en) | 2010-05-18 |
Family
ID=20283335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2440629A Expired - Lifetime CA2440629C (en) | 2001-03-14 | 2002-03-01 | Propellant powder charge for barrel weapon |
Country Status (17)
Country | Link |
---|---|
US (1) | US20050066835A1 (en) |
EP (1) | EP1379482B1 (en) |
JP (1) | JP2004531441A (en) |
AT (1) | ATE369326T1 (en) |
AU (1) | AU2002233907B2 (en) |
CA (1) | CA2440629C (en) |
CY (1) | CY1106907T1 (en) |
CZ (1) | CZ300130B6 (en) |
DE (1) | DE60221659T2 (en) |
DK (1) | DK1379482T3 (en) |
ES (1) | ES2289077T3 (en) |
IL (1) | IL157888A0 (en) |
NO (1) | NO328476B1 (en) |
PT (1) | PT1379482E (en) |
SE (1) | SE518660C2 (en) |
WO (1) | WO2002074717A1 (en) |
ZA (1) | ZA200307163B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE526922C2 (en) * | 2003-12-09 | 2005-11-22 | Nexplo Bofors Ab | Progressive driver charge with high charge density |
RU2488070C1 (en) * | 2011-12-29 | 2013-07-20 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | Charge for construction shot |
RU2481545C1 (en) * | 2012-01-11 | 2013-05-10 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | CHARGE FOR 5,6 mm SPORT TRAINING RIM-FIRE CARTRIDGE |
RU2488067C1 (en) * | 2012-01-11 | 2013-07-20 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | CHARGE FOR 5,6 mm-SPORTING-HUNTING SHOT OF ANNULAR IGNITION |
RU2481549C1 (en) * | 2012-01-27 | 2013-05-10 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | CHARGE FOR 7,62 mm RIFLE CARTRIDGE |
RU2488071C1 (en) * | 2012-01-30 | 2013-07-20 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | Charge for hunting shot of 12, 16, 20 caliber |
RU2481548C1 (en) * | 2012-01-31 | 2013-05-10 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | CHARGE FOR 9 mm PISTOL CARTRIDGE |
RU2488069C1 (en) * | 2012-02-20 | 2013-07-20 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | CHARGE FOR 7,62 mm-RIFLE SHOT |
RU2494339C1 (en) * | 2012-04-10 | 2013-09-27 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | CHARGE FOR 5,6 mm-SPORTING-HUNTING SHOT OF ANNULAR IGNITION |
RU2494338C1 (en) * | 2012-04-10 | 2013-09-27 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | Charge of spherical powder for scatter cartridges for smooth-bore guns |
RU2496086C1 (en) * | 2012-06-14 | 2013-10-20 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | CHARGE FOR PISTOL 9×19 mm CARTRIDGE WITH STEEL CORE |
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DE2313856C3 (en) * | 1973-03-20 | 1978-05-24 | Josef Schaberger & Co Gmbh, 6535 Gau-Algesheim | Propellant charge build-up |
NO113574C (en) * | 1975-05-10 | 1985-08-14 | Dynamit Nobel Ag | SINGLE OR MULTIPLE BASIC POWDER FOR DRIVE CHARGES AND PROCEDURES FOR THEIR PREPARATION |
FR2422925A1 (en) * | 1978-04-13 | 1979-11-09 | France Etat | PROPULSIVE LOADING OF AMMUNITION |
FR2518736B1 (en) * | 1981-12-17 | 1986-09-26 | Poudres & Explosifs Ste Nale | MIXED LOADS FOR AMMUNITION WITH SOCKET CONSISTING OF AGGLOMERATED PROPULSIVE POWDER AND GRAIN PROPULSIVE POWDER |
SE461093B (en) * | 1987-08-21 | 1990-01-08 | Nobel Kemi Ab | FUEL CHARGING TO THE ELECTRIC WIRE AND MAKING ITS MANUFACTURING |
FR2679992B1 (en) * | 1991-08-01 | 1993-09-24 | Poudres & Explosifs Ste Nale | MULTIPERFORESTED AND DIVIDED PROPULSIVE POWDER STRANDS, MANUFACTURING APPARATUS AND USE THEREOF. |
SE508352C2 (en) * | 1991-09-16 | 1998-09-28 | Bofors Ab | Ammunition unit and methods of making them |
US5821449A (en) * | 1995-09-28 | 1998-10-13 | Alliant Techsystems Inc. | Propellant grain geometry for controlling ullage and increasing flame permeability |
CZ20014668A3 (en) * | 1999-06-25 | 2002-09-11 | Nippon Kayaku Kabushiki-Kaisha | Gas-producing composition |
-
2001
- 2001-03-14 SE SE0100863A patent/SE518660C2/en not_active IP Right Cessation
-
2002
- 2002-03-01 DK DK02700974T patent/DK1379482T3/en active
- 2002-03-01 IL IL15788802A patent/IL157888A0/en active IP Right Grant
- 2002-03-01 WO PCT/SE2002/000361 patent/WO2002074717A1/en active IP Right Grant
- 2002-03-01 CA CA2440629A patent/CA2440629C/en not_active Expired - Lifetime
- 2002-03-01 AT AT02700974T patent/ATE369326T1/en active
- 2002-03-01 CZ CZ20032483A patent/CZ300130B6/en not_active IP Right Cessation
- 2002-03-01 JP JP2002573728A patent/JP2004531441A/en active Pending
- 2002-03-01 US US10/471,457 patent/US20050066835A1/en not_active Abandoned
- 2002-03-01 AU AU2002233907A patent/AU2002233907B2/en not_active Expired
- 2002-03-01 ES ES02700974T patent/ES2289077T3/en not_active Expired - Lifetime
- 2002-03-01 EP EP02700974A patent/EP1379482B1/en not_active Expired - Lifetime
- 2002-03-01 DE DE60221659T patent/DE60221659T2/en not_active Expired - Lifetime
- 2002-03-01 PT PT02700974T patent/PT1379482E/en unknown
-
2003
- 2003-09-12 ZA ZA200307163A patent/ZA200307163B/en unknown
- 2003-09-12 NO NO20034050A patent/NO328476B1/en not_active IP Right Cessation
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2007
- 2007-10-04 CY CY20071101267T patent/CY1106907T1/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO328476B1 (en) | 2010-03-01 |
NO20034050L (en) | 2003-10-20 |
DE60221659T2 (en) | 2008-05-21 |
AU2002233907B2 (en) | 2007-01-25 |
IL157888A0 (en) | 2004-03-28 |
DE60221659D1 (en) | 2007-09-20 |
CZ300130B6 (en) | 2009-02-18 |
US20050066835A1 (en) | 2005-03-31 |
NO20034050D0 (en) | 2003-09-12 |
EP1379482B1 (en) | 2007-08-08 |
SE0100863L (en) | 2002-09-15 |
CZ20032483A3 (en) | 2004-02-18 |
EP1379482A1 (en) | 2004-01-14 |
JP2004531441A (en) | 2004-10-14 |
CY1106907T1 (en) | 2012-09-26 |
WO2002074717A1 (en) | 2002-09-26 |
ATE369326T1 (en) | 2007-08-15 |
PT1379482E (en) | 2007-10-22 |
DK1379482T3 (en) | 2007-12-10 |
CA2440629A1 (en) | 2002-09-26 |
ES2289077T3 (en) | 2008-02-01 |
SE518660C2 (en) | 2002-11-05 |
SE0100863D0 (en) | 2001-03-14 |
ZA200307163B (en) | 2004-09-13 |
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