EP4088083B1 - Verbesserung in bezug auf geschosspatronenverschlussvorrichtungen sowie pfropfen und patronen damit - Google Patents

Verbesserung in bezug auf geschosspatronenverschlussvorrichtungen sowie pfropfen und patronen damit Download PDF

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Publication number
EP4088083B1
EP4088083B1 EP20828105.5A EP20828105A EP4088083B1 EP 4088083 B1 EP4088083 B1 EP 4088083B1 EP 20828105 A EP20828105 A EP 20828105A EP 4088083 B1 EP4088083 B1 EP 4088083B1
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EP
European Patent Office
Prior art keywords
obturator
cartridge
skirt portion
seal
annular skirt
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EP20828105.5A
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English (en)
French (fr)
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EP4088083C0 (de
EP4088083A1 (de
Inventor
Phillip PLOWMAN
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Gamebore Cartridge Co Ltd
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Gamebore Cartridge Co Ltd
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Publication of EP4088083A1 publication Critical patent/EP4088083A1/de
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Publication of EP4088083C0 publication Critical patent/EP4088083C0/de
Publication of EP4088083B1 publication Critical patent/EP4088083B1/de
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B7/00—Shotgun ammunition
    • F42B7/02—Cartridges, i.e. cases with propellant charge and missile
    • F42B7/08—Wads, i.e. projectile or shot carrying devices, therefor

Definitions

  • the present invention relates to projectile cartridges, such as shotgun cartridges, and in particular obturators and wads used in the construction of the cartridges, as for instance described in SU1586360 A .
  • shotgun cartridges typically comprise a projectile (e.g. a collection of lead or lead alloy shot), propellant powder (e.g. gunpowder) and a wad, all of which are housed within a tubular cartridge casing.
  • projectile e.g. a collection of lead or lead alloy shot
  • propellant powder e.g. gunpowder
  • wad e.g. wad
  • the role of the wad (also referred to as wadding) is to transfer the thrust generated by the gunpowder when it combusts to the shot so as to force the shot to exit the gun at speed.
  • the wad is configured to form a seal, initially, with the cartridge case and, once the gun has been fired, the barrel of the gun.
  • Plastic wads typically comprise a single moulded construction with three main parts, in the form of an obturator that is linked to a shot cup by way of a cushioning structure. With that said, in some moulded plastic wad constructions the cushioning structure may be omitted, particularly in situations where a larger shot cup is employed. It is the obturator that performs the sealing function when the gunpowder in the cartridge is ignited by the primer.
  • plastic wads The moulded construction of plastic wads enables them to deliver a more consistent seal than fibre wads.
  • plastic wads typically have a standard deviation average of about 25 bar pressure between shots.
  • Fibre wads typically have a two-part construction that comprises a powder card and a fibre driving wad.
  • the powder card which is typically just stamped out in a circular disc shape, acts as a barrier between the gunpowder and the fibre driving wad.
  • the fibre wad provides a cushioning function to protect the shot from being deformed by the forces generated by the exploding gunpowder.
  • fibre wad Unfortunately, the quality of the seal formed by the fibre wad, and in particular the powder card, is not as good as that achieved by a plastic wad. As a consequence, cartridges with fibre wads offer less consistent results than shotgun cartridges with plastic wads. Typically fibre wads offer with a standard deviation average of about 40 bar pressure between shots.
  • fibre wads are still commonly used. This is primarily due to the environmental issues relating to plastic wads, which do not degrade in the same way as fibre wads.
  • the present invention provides an improved projectile cartridge obturator in accordance with claim 1.
  • the projectile cartridge obturator which is moulded from a biodegradable polymer material, comprises: a main body having a first face, with a first centrally located projection spaced apart from a first annular skirt portion located on the periphery of the main body, and a second face, with a second centrally located projection spaced apart from a second annular skirt portion located on the periphery of the main body; wherein the free end of each annular skirt portion is configured to form a seal with the interior wall of a projectile cartridge case when the obturator is inserted into the case; and wherein the first annular skirt portion is further provided with a secondary seal spaced away from the free end of the first skirt portion, said secondary seal also configured to form a seal with the interior wall of the cartridge case.
  • the provision of multiple sealing means on the obturator of the present invention delivers a reduction in gas leakage when the cartridge is fired, which helps to provide more consistent ballistic results from one cartridge to the next.
  • each skirt Providing a seal on the free end of each skirt allows the explosive gases generated by the gunpowder when it ignites to get behind the skirt and urge the seal outwards to improve the seal formed, initially, against the surrounding walls of the cartridge casing and, subsequently, the gun barrel.
  • the explosive gases can be harnessed to urge both the skirt's main seal and the secondary seal outwards.
  • the second annular skirt portion may also be provided with a secondary seal spaced away from the free end of second annular skirt portion, wherein said secondary seal is also configured to form a seal with the interior wall of the case.
  • the obturator of the present invention helps to greatly reduce the gas leakage in shotgun cartridges in a consistent manner. Tests have shown that cartridges employing the obturator of the present invention have demonstrated an improved standard deviation average in the region of 500 KPa pressure between shots.
  • the obturator further comprises a vent in one or more of the seals formed by the first and second annular skirt portions and the secondary seals.
  • the vent may take the form of a groove or channel (located in the obturator) that traverses each seal.
  • vent in one or more of the main or secondary seals is considered beneficial to the cartridge manufacture process, and in particular the manufacturing step of inserting the obturator into a cartridge case.
  • vents in the seals of the obturator is sufficient to allow air to escape from the cartridge at the speeds associated with the insertion step but not at the greater speeds associated with the firing of the cartridge.
  • vents in the seals facilitates the cartridge manufacture process without reducing the gas sealing properties of the final cartridge product during use.
  • each of the seals of the obturator is provided with a vent to facilitate the escape of air during the obturator insertion step.
  • vents on adjacent seals are offset from one another around the periphery of the obturator. By offsetting the vents in this way it is possible to create a more torturous path around the obturator.
  • the obturator provides improved sealing when needed (i.e. during the combustion of the gun powder) without impeding the manufacture of the cartridge.
  • first and/or second centrally located projection may comprise cut out regions that define one or more structural ribs. In this way the amount of material required to form the obturator can be reduced without impairing the structural strength of the obturator.
  • alternative centrally located projections may be provided with alternative structure arrangements by making different cut out regions.
  • the cut outs may define one or more co-axially located circular projections.
  • the obturator of the present invention can be used in both plastic wads and fibre wads.
  • a projectile cartridge wad that comprises a projectile cartridge obturator of the present invention.
  • the cartridge wad may comprise either a fibre wad or a plastic wad.
  • the wad further comprises a fibre plug.
  • the wad further comprises a shot cup.
  • the plastic wad may further comprise a cushioning structure that is located between the obturator and the shot cup. Further preferably the cushioning structure is connected to the second centrally located projection of the obturator.
  • the obturator, cushioning structure, when present, and the shot cup are formed as a single moulded piece.
  • a projectile cartridge obturator comprising: a main body having a first face, with a first centrally located projection spaced apart from a first annular skirt portion located on the periphery of the main body, and a second face, upon which a shot cup is provided, with a second annular skirt portion located on the periphery of the main body; wherein the free end of each annular skirt portion is configured to form a seal with the interior wall of a projectile cartridge case when the obturator is inserted into the case; and wherein the first annular skirt portion is further provided with a secondary seal spaced away from the free end of the first skirt portion, said secondary seal also configured to form a seal with the interior wall of the cartridge case.
  • the second face of the obturator defines the base of the shot cup, thereby allowing the length of the shot cup to be maximised within the size restrictions of the complete projectile cartridge.
  • the present invention provides a projectile cartridge comprising the obturator or wad of the present invention.
  • the present invention also provided a method of manufacturing a projectile cartridge, said method comprising: moulding an obturator from a biodegradable polymer material, said obturator comprising a main body having a first face, with a first centrally located projection spaced apart from a first annular skirt portion located on the periphery of the main body, and a second face, with a second centrally located projection spaced apart from a second annular skirt portion located on the periphery of the main body, and wherein at least the first annular skirt portion is provided with a secondary seal spaced away from the free end of the first annular skirt; inserting the obturator into a projectile cartridge case between a charge of gunpowder and one or more cartridge projectiles (e.g. shot) such that the free ends of the annular skirts and said at least one secondary seal form seals with the interior wall of the cartridge case; and closing the case to encapsulate its contents.
  • a biodegradable polymer material said ob
  • the second annular skirt portion may also be provided with a secondary seal spaced away from the free end of second skirt portion, wherein said secondary seal is also configured to form a seal with the interior wall of the case.
  • the method may further comprise providing each of the annular skirts and said at least one secondary seal with a vent.
  • the provision of one or more vents in the obturator's seals makes the step of inserting the obturator into the cartridge case, with which it forms a sealing relationship, easier.
  • vents provided in adjacent seals may be offset from one another around the periphery of the obturator. As noted above, arranging the vents in this way helps to define a torturous gas flow path around the obturator, which reduces gas leakage.
  • first centrally located projection and further preferably the second centrally located projection too, may be moulded with cut outs that define one or more structural ribs. It is envisioned that alternative structural arrangements may be provided by adopting different cut outs.
  • reducing the amount of material required to manufacture the obturator can significantly reduce cartridge manufacturing costs, this is considered particularly beneficial because the obturator is moulded from a biodegradable polymer material.
  • a fibre plug may be provided between the obturator and the cartridge projectile.
  • the obturator may be moulded as part of a combined wad component that also comprises a shot cup, in which said one or more cartridge projectiles are received.
  • the combined wad component may also comprise a cushioning structure arranged between the obturator and the shot cup.
  • the obturator and also the combined wad component of the present invention are moulded from a biodegradable polymer material.
  • the present invention provides for improved obturators for use in projectile cartridges for firearms, such as shotguns.
  • a projectile cartridge such as a shotgun cartridge
  • the main role of the obturator is to provide a gas seal that prevents the dissipation of the gases that are generated during the ignition of the gunpowder within the cartridge.
  • the obturator helps to ensure an efficient transfer of the forces generated by the gunpowder to the projectile (e.g. shot) held in the cartridge.
  • the obturator of the present invention is designed to provide a more reliable gas seal that in turn provides more consistent results when the cartridges are fired.
  • FIG. 1 A preferred embodiment of the obturator 1 of the present invention is shown in Figure 1 .
  • the main body 2 When viewed in plan, the main body 2 has a circular shape that corresponds to the circular shape of the inner walls of a cartridge case or casing (see Figure 4 ).
  • first annular skirt portion 3 Around the periphery of the main body 2 are provided a first annular skirt portion 3 and a second annular skirt portion 4.
  • the first and second annular skirt portions extend away from one another in opposite directions to a free end.
  • both skirts increase in diameter as they extend away from the main body of the obturator towards their respective free ends. In this way the free end of each annular skirt portion is configured to form a seal with the inner wall of a cartridge casing when the cartridge is constructed.
  • each annular skirt may retain a constant diameter as it extends away from the main body of the obturator and instead be provided with a ring that projects outwards from each skirt at the free end thereof. It is this ring that forms a seal with the inner wall of a cartridge casing when the cartridge is constructed.
  • first and second annular skirt portions are shown in Figures 1 and 2 as being of equal length, it is envisaged that the respective lengths of the annular skirt portions 3, 4 may differ from one another in some embodiments of the present invention.
  • each of the annular skirt portions 3, 4 is provided with a secondary sealing means in the form of a ring 5, 6 that projects outwards from each skirt at a mid-point located somewhere between the free end of the skirt and the point where the skirt joins the main body of the obturator.
  • the secondary seal rings 5, 6 are shaped so that the extent to which they extend radially out from the skirt increases the closer they get to the free end of their respective annular skirt portion.
  • annular skirt portions 3, 4 will be better appreciated upon consideration of Figure 2 , which shows a partially exposed close up of region 'A' of Figure 1 .
  • annular skirt portions 3, 4 are shown in Figure 2 as transparent so that the interior of the obturator can be appreciated.
  • each face of the main body 2 is provided with a centrally located projection 7, 8.
  • the centrally located projection is spaced apart from the annular skirt portion.
  • first centrally location projection 7 extends from the first face of the main body 2 and is spaced apart from first annular skirt portion 3 and the second centrally location projection 8 extends from the second face of the main body 2 is spaced apart from second annular skirt portion 4.
  • each centrally located projection away from their respective annular skirt portion serves to create an annular channel 9 adjacent to each face of the main body.
  • the annular channel 9 allows pressurised gases to get into the space behind the annular skirt portions and, in so doing, urge the skirts (and their associated seals) outwards towards the inner walls of the cartridge casing and subsequently the gun barrel. In this way an improved gas seal is created between obturator and the walls of the casing/gun barrel.
  • Figure 3 shows the obturator of Figure 1 in plan, the concentric arrangement of the annular skirt portion 3, annular channel 9 and centrally located projection 7 can be better appreciated.
  • the centrally located projection 7 is provided with cut out regions that serve to define structural ribs 10, which are shown in an 'X' configuration. It is appreciated that alternative cut out arrangements can be adopted without departing from the scope of the present invention.
  • the centrally located projection may be provided with cut outs that achieve castellation or alternatively define one or more co-axially located circular projections.
  • Reducing the amount of material required to construct the obturator is particularly advantageous when making it out of biodegradable materials, because otherwise the cost of manufacturing the cartridge might be commercially unattractive.
  • FIG. 4 shows a fibre wad cartridge 20 employing the obturator 1 of the present invention.
  • the cartridge 20 comprises a cartridge casing 21, which is commonly made from plastic and houses the various components of the cartridge.
  • the primer 25 which is usually formed as a brass or nickel head attached to one end of the casing 21.
  • the gunpowder charge 24 Adjacent to the primer 25 is the gunpowder charge 24, which is retained within the casing between the primer and the obturator 1. Before the cartridge is fired, the obturator 1 keeps the gunpowder 24 separate from the fibre plug 23.
  • the fibre plug 23 It is the role of the fibre plug 23 to act as a packer that allows the height of the shot to be adjusted within the cartridge.
  • the fibre plug also provides a cushioning function, which helps to prevent the shot 22 from being deformed by the considerable forces generated by the exploding gunpowder. This is particularly important when the shot (i.e. the cartridge projectile) if formed from softer metals because the shot deformation can greatly affect the firing pattern achieved by a cartridge.
  • FIG. 5 is similar in construction to that shown in Figure 1 , with a main body 32 that comprises oppositely extending annular skirt portions 33 and 34.
  • annular skirt portions are provided with secondary sealing means in the form of annular rings 35 and 36.
  • the secondary seal rings 35, 36 are shaped so that the extent to which they extend radially outwards increases the closer they get to the free end of their respective annular skirt portion.
  • each ring has a generally triangular cross-section.
  • alternative configurations e.g. 'D' shaped cross-section
  • first annular skirt portion 33 is provided with vent 31a and the secondary seal on the first annular skirt portion 35 is provided with vent 31b.
  • second annular skirt portion 34 is provided with vent 31d and the secondary seal on the second annular skirt portion 36 is provided with vent 31c.
  • Each of the vents 31a-31d takes the form of a small cut out channel or groove in the sealing surface of the respective seals.
  • the vents are configured to traverse each seal and allow a limited flow of gases through each of the seals. This limited flow of gas past the obturator's seals is sufficient to prevent the build-up of pressure within a cartridge during manufacture because the speed with which a obturator is inserted into a cartridge casing is much less than the speed of the gases generated when the gunpowder explodes (i.e. during the firing of a gun).
  • the gases generated when the gunpowder in the cartridge is ignited are prevented from leaking past the obturator, which helps to ensure a more efficient transfer of forces from the exploding gunpowder to the cartridge projectiles (e.g. shot) held at the crimped leading end of the cartridge casing.
  • vents e.g. 31a and 31b; 31b and 31c; etc. are located 180 degrees away from one another around the outer perimeter of the obturator 30.
  • the obturator 30 is capable of forming a torturous flow path for any gases that try to by-pass the obturator's gas seals.
  • the obturator shown in Figures 5 to 7 has a single vent in each of the obturator's seals, it is envisioned that multiple seals may be provided in each seal. In such an arrangement the vents may or may not be off-set from one another around the periphery of the obturator.
  • Figures 6 and 7 show three dimensional views of the second preferred embodiment of the obturator 30 of the present invention, in which the centrally located projections 37, 40 and the annular channels 38 can be better appreciated.
  • centrally located projection 37 that serve to define the structural ribs 39.
  • centrally located projection 40 may preferably also provided with a similar arrangement of cut outs regions and structural ribs.
  • the centrally located projections may have alternative configurations (e.g. castellation or co-axially located circular projections).
  • annular skirt portion is of a suitable length, it may be possible to accommodate more than one secondary seal on that annular skirt portion to further improve the gas sealing function of the skirt.
  • the obturator of the present invention may be incorporated into a combined wad structure 50.
  • a first preferred embodiment of this combined wad structure 50 is shown in Figure 8 .
  • the structure 50 which is preferably moulded as a single unitary construction from a suitable plastics material such as polyethylene, comprises an obturator 51, a cushioning structure 57 and a shot cup 58.
  • the obturator 51 of the combined wad structure 50 is provided with a first annular skirt portion 52 and a second annular skirt portion 53.
  • each annular skirt portion 52, 53 is provided with a secondary sealing means in the form of an annular ring (54, 55 respectively).
  • annular ring 54, 55 respectively.
  • the obturator 51 of the combined wad structure 50 is provided with a first centrally located projection that is preferably formed with cut out regions/structural ribs.
  • the construction of the second centrally located projection is adapted to accommodate the cushioning structure 57, which projects from the opposite face of the obturator to the first centrally located projection.
  • the role of the cushioning structure 57 is to minimise the deformation of the shot held within the cartridge when the gunpowder is ignited.
  • the cushioning structure 57 serves to connect the obturator 51 to the shot cup 58, within which one or more cartridge projectiles (e.g. shot) are housed in the final cartridge product.
  • cartridge projectiles e.g. shot
  • the cushioning structure may be omitted (for example to accommodate a large shot cup).
  • An example this arrangement of combined wad structure 60 is shown in Figure 9 .
  • the obturator 61 is provided with a first annular skirt portion 62 and a second annular skirt portion 63.
  • each annular skirt portion 62, 63 is provided with a secondary sealing means in the form of an annular ring (64, 65 respectively).
  • vents 66a-66d may be formed in the obturator 61.
  • the obturator 61 is provided with a first centrally located projection that is preferably formed with cut out regions/structural ribs.
  • the shot cup 68 is connected directly to the obturator 61, there are no cut outs in the upper face of the obturator. Instead, the upper face of the obturator effectively forms the base of the shot cup.
  • FIG 10 shows a shotgun cartridge 70 employing a variant of the combined wad structure 50a shown in Figure 8 .
  • the cartridge has most of the same components as the shotgun cartridge 20 shown in Figure 4 . As such the same reference numbers are used for those components that are common to both cartridge types.
  • the combined wad structure 50a is housed within the cartridge casing 21, which is commonly made from plastic and houses the various components of the cartridge.
  • the primer 25 which is usually formed as a brass or nickel head attached to one end of the casing 21.
  • Adjacent to the primer 25 is the gunpowder charge 24, which is retained within the casing between the primer and the obturator 51a of the combined wad structure 50a.
  • the shot 22 is held within the shot cup 58a of the combined wad structure 50a.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (15)

  1. Geschosspatronenverschlussvorrichtung (1, 30, 51, 51a, 61), die aus einem Polymermaterial geformt ist, wobei die Verschlussvorrichtung umfasst:
    Einen Hauptkörper (2, 32) mit einer ersten Fläche mit einem ersten zentral angeordneten Vorsprung (7, 37) aufweist, der von einem ersten ringförmigen Randabschnitt (3, 33, 52, 62) beabstandet ist, der sich am Umfang des Körpers befindet, und einer zweiten Fläche mit einem zweiten zentral angeordneten Vorsprung (8, 40), der von einem zweiten ringförmigen Randabschnitt (4, 34, 53, 63) beabstandet ist, der sich am Umfang des Körpers befindet;
    wobei das freie Ende jedes ringförmigen Randabschnitts (3, 4, 33, 34, 52, 53, 62, 63) so konfiguriert ist, dass es eine Abdichtung mit der Innenwand einer Geschosspatronenhülse (21) bildet, wenn der Verschluss (1, 30, 51, 51a, 61) in das Gehäuse (21) eingesetzt wird; und
    wobei der erste ringförmige Randabschnitt weiter mit einer sekundären Abdichtung (56, 35, 36, 54, 55, 64, 65) versehen ist, die vom freien Ende des ersten Randabschnitts weg beabstandet ist, wobei die sekundäre Abdichtung außerdem so konfiguriert, dass sie eine Abdichtung mit der Innenwand der Patronenhülse (21) bildet, dadurch gekennzeichnet, dass das Polymermaterial, aus dem der Verschluss gebildet ist, biologisch abbaubar ist.
  2. Verschluss nach Anspruch 1, wobei der zweite ringförmige Randabschnitt ebenso mit einer zweiten Abdichtung (5, 6, 35, 36, 54, 55, 64, 65) versehen ist, die vom freien Ende des zweiten Randabschnitts weg beabstandet ist, wobei die sekundäre Abdichtung ebenfalls so konfiguriert ist, dass sie eine Abdichtung mit der Innenwand der Hülse bildet.
  3. Verschluss nach Anspruch 1 oder 2, der weiter eine Öffnung (31a, 31b, 31c, 31d, 56a, 56b, 56c, 56d, 66a, 66b, 66c, 66d) in einer oder mehreren der Abdichtungen umfasst, die von den ersten und zweiten ringförmigen Randabschnitten (3, 4, 33, 34, 52, 53, 62, 63) und den sekundären Abdichtungen (5, 6, 35, 36, 54, 55, 64, 65) gebildet werden.
  4. Verschluss nach Anspruch 3, wobei die in benachbarten Abdichtungen vorgesehenen Öffnungen um den Umfang des Verschlusses herum voneinander versetzt sind.
  5. Verschluss nach irgendeinem der vorhergehenden Ansprüche, wobei der erste zentral angeordnete Vorsprung (7, 37) und/oder der zweite zentral angeordnete Vorsprung (8, 40) ausgeschnittene Bereiche umfasst, die eine oder mehrere Strukturrippen (10, 39) definieren.
  6. Pfropfen (50, 50a, 60) der Geschosspatrone, der einen Geschosspatronenverschluss (51, 51a, 61) nach irgendeinem der vorhergehenden Ansprüche umfasst.
  7. Pfropfen nach Anspruch 6, weiter umfassend entweder:
    Einen Faserstopfen (23); oder
    eine Dämpfungsstruktur (57) und einen Schrotbecher (58, 58a).
  8. Pfropfen nach Anspruch 7, wobei die Dämpfungsstruktur (57) mit dem zweiten zentral angeordneten Vorsprung des Verschlusses (51, 51a) verbunden ist; und wobei
    vorzugsweise der Verschluss (51, 51a), die Dämpfungsstruktur (57) und der Schrotbecher (58, 58a) aus einem Stück geformt sind.
  9. Geschosspatrone (70), die einen Verschluss (1, 30, 51, 51a, 61) in Übereinstimmung mit Ansprüchen 1 bis 5 oder einen Pfropfen (50, 50a, 60) in Übereinstimmung mit Ansprüchen 6 bis 8 umfasst, die innerhalb einer Hülse (21) aufgenommen sind.
  10. Verfahren zur Herstellung einer Geschosspatrone (70), wobei das Verfahren umfasst:
    Formen eines Verschlusses (1, 30, 51, 51a, 61) aus einem Polymermaterial, wobei der Verschluss einen Hauptkörper (2, 32) mit einer ersten Fläche mit einem ersten zentral angeordneten Vorsprung (7, 37), der von einem ersten ringförmigen Randabschnitt (3, 33, 52, 62) beabstandet ist, der sich am Umfang des Körpers befindet, und eine zweite Fläche mit einem zweiten zentral angeordneten Vorsprung (8, 40), der von einem zweiten ringförmigen Randabschnitt (4, 34, 53, 63) beabstandet ist, der sich am Umfang des Körpers befindet, umfasst, wobei das freie Ende jedes ringförmigen Randabschnitts (3, 4, 33, 34, 52, 53, 62, 63) so konfiguriert ist, dass es eine Abdichtung mit der Innenwand einer Geschosspatronenhülse (21) bildet, wenn der Verschluss (1, 30, 51, 51a, 61) in die Hülse (21) eingesetzt wird;
    Einsetzen des Verschlusses (1, 30, 51, 51a, 61) in eine Geschosspatronenhülse (21) zwischen eine Ladung Schießpulver (24) und ein oder mehrere Patronengeschosse (22) derart, dass die ringförmigen Ränder (3, 4, 33, 34, 52, 53, 62, 63) Abdichtungen mit der Innenwand der Patronenhülse (21) bilden; und
    Verschießen der Hülse (21) um deren Inhalte einzukapseln; und
    wobei der erste ringförmige Randabschnitt weiter mit einer sekundären Abdichtung (5, 6, 35, 36, 54, 55, 64, 65) versehen ist, die vom freien Ende des ersten Randabschnitts weg beabstandet ist, wobei die sekundäre Abdichtung außerdem so konfiguriert, dass sie eine Abdichtung mit der Innenwand der Patronenhülse (21) bildet, dadurch gekennzeichnet, dass das Polymermaterial, aus dem der Verschluss gebildet ist, biologisch abbaubar ist.
  11. Verfahren nach Anspruch 10, wobei der zweite ringförmige Randabschnitt ebenfalls mit einer sekundären Abdichtung (5, 6, 35, 36, 54, 55, 64, 65) versehen ist, die vom freien Ende des zweiten Randabschnitts weg beabstandet ist, wobei die sekundäre Abdichtung ebenfalls so konfiguriert ist, dass sie eine Abdichtung mit der Innenwand der Hülse bildet.
  12. Verfahren nach Anspruch 11 oder 12, das ferner jeden der ringförmigen Ränder und die zumindest eine sekundäre Abdichtung mit einer Öffnung (31a, 31b, 31c, 31d, 56a, 56b, 56c, 56d, 66a, 66b, 66c, 66d) versieht.
  13. Verfahren nach Anspruch 12, wobei die in benachbarten Abdichtungen bereitgestellten Öffnungen um den Umfang des Verschlusses herum versetzt sind.
  14. Verfahren nach irgendeinem der Ansprüche 10 bis 13, wobei der erste zentral angeordnete Vorsprung, und vorzugsweise auch der zweite zentral angeordnete Vorsprung, mit Ausschnitten geformt sind, die eine oder mehrere strukturelle Rippen definieren.
  15. Verfahren nach einem der Ansprüche 10 bis 14, ferner umfassend entweder:
    Bereitstellen eines Faserstopfens (23) zwischen dem Verschluss und dem Patronengeschoss; oder
    Bereitstellen eines Verschlusses als Teil einer geformten, kombinierten Pfropfen-Komponente (50, 50a, 60) die außerdem eine Dämpfungsstruktur (57) und einen Schrotbecher (58, 58a) umfasst, in dem das Patronengeschoss (22) aufgenommen ist.
EP20828105.5A 2020-01-10 2020-12-15 Verbesserung in bezug auf geschosspatronenverschlussvorrichtungen sowie pfropfen und patronen damit Active EP4088083B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2000379.4A GB2585964B (en) 2020-01-10 2020-01-10 Improvement relating to projectile cartridge obturators and wads and cartridges employing such
PCT/GB2020/053211 WO2021140311A1 (en) 2020-01-10 2020-12-15 Improvement relating to projectile cartridge obturators and wads and cartridges employing such

Publications (3)

Publication Number Publication Date
EP4088083A1 EP4088083A1 (de) 2022-11-16
EP4088083C0 EP4088083C0 (de) 2024-07-17
EP4088083B1 true EP4088083B1 (de) 2024-07-17

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EP20828105.5A Active EP4088083B1 (de) 2020-01-10 2020-12-15 Verbesserung in bezug auf geschosspatronenverschlussvorrichtungen sowie pfropfen und patronen damit

Country Status (5)

Country Link
US (1) US20230349678A1 (de)
EP (1) EP4088083B1 (de)
ES (1) ES2991305T3 (de)
GB (1) GB2585964B (de)
WO (1) WO2021140311A1 (de)

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US579853A (en) * 1897-03-30 Shot-carrying shell
US1659649A (en) * 1923-07-30 1928-02-21 Western Cartridge Co Wad for shot shells
FR1136976A (fr) * 1955-11-14 1957-05-22 Bouchon L L Soc Du Bourre élastico-pneumatique pour cartouches de chasse
CH349902A (fr) * 1959-04-21 1960-10-31 R L Metal & Plastic Sa Bourre de cartouche de chasse
US3022734A (en) * 1959-07-27 1962-02-27 Remington Arms Co Inc Shot shell wad
FR1286935A (fr) * 1961-02-17 1962-03-09 Manufrance Joint obturateur pour les cartouches des fusils de chasse et autres armes
US3127837A (en) * 1961-04-27 1964-04-07 Driaire Inc Shot shell construction
BE639052A (de) * 1962-10-23
US3279375A (en) * 1964-04-27 1966-10-18 Herter Inc S Shotgun shell wad
US3368489A (en) * 1966-04-26 1968-02-13 Herter Inc S Shotshell over-powder wad and shot cup
FR2063728A5 (en) * 1969-10-28 1971-07-09 Piegay Marcel Wad for sporting cartridges
US3750580A (en) * 1970-11-13 1973-08-07 Asahi Chemical Ind Wads for charging shot of shot gun
FR2141459B1 (de) * 1971-06-03 1973-06-29 Philippe Maurice
FR2199861A5 (de) * 1972-09-15 1974-04-12 Rey Freres Ets
CH662878A5 (en) * 1985-08-15 1987-10-30 Gilbert Cornelius Wad for shot cartridge
US4864934A (en) * 1988-12-12 1989-09-12 Olin Corporation Industrial shotshell having a load-stabilizing assembly
SU1586360A1 (ru) * 1988-12-20 1996-05-10 С.И. Баскин Пыж для патронов
US5150909A (en) * 1991-04-04 1992-09-29 Edwin Fitzwater Air gun pellet design
NZ256778A (en) * 1992-10-28 1996-11-26 Olin Corp Water resistant shot wad; details regarding internal moisture seal
US7150229B2 (en) * 2004-04-27 2006-12-19 Olin Corporation Projectile wad for ammunition cartridges

Also Published As

Publication number Publication date
GB2585964A (en) 2021-01-27
ES2991305T3 (es) 2024-12-03
GB2585964B (en) 2021-12-15
GB202000379D0 (en) 2020-02-26
EP4088083C0 (de) 2024-07-17
US20230349678A1 (en) 2023-11-02
WO2021140311A1 (en) 2021-07-15
EP4088083A1 (de) 2022-11-16

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