US20070151438A1 - Double-barrelled body for a personal firearm - Google Patents

Double-barrelled body for a personal firearm Download PDF

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Publication number
US20070151438A1
US20070151438A1 US10/587,891 US58789103A US2007151438A1 US 20070151438 A1 US20070151438 A1 US 20070151438A1 US 58789103 A US58789103 A US 58789103A US 2007151438 A1 US2007151438 A1 US 2007151438A1
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Prior art keywords
handle
pump
rod
unit
lever
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Abandoned
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US10/587,891
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English (en)
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Philippe Courty
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Individual
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Individual
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Publication of US20070151438A1 publication Critical patent/US20070151438A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/61—Magazines
    • F41A9/64—Magazines for unbelted ammunition
    • F41A9/65—Box magazines having a cartridge follower
    • F41A9/69—Box magazines having a cartridge follower characterised by multiple-row or zigzag arrangement of cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/06—Electric or electromechanical safeties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/02—Mountings without wheels
    • F41A23/08—Bipods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/60—Breech mechanisms for guns having two or more barrels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/62—Breech mechanisms, e.g. locks using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/35—Feeding multibarrel guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C27/00—Accessories; Details or attachments not otherwise provided for
    • F41C27/06—Adaptations of smallarms for firing grenades, e.g. rifle grenades, or for firing riot-control ammunition; Barrel attachments therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C7/00—Shoulder-fired smallarms, e.g. rifles, carbines, shotguns

Definitions

  • the present invention is related to an ergonomic body for a personal firearm organized with three aligned handles under the main stock encompassing one or several barrels with various bore and a telescopic bayonet, said handles advantageously assuring the functions of butt/housing for two magazines, combined cocking lever and steerable gun bipod for the most advantageous weight balance.
  • This body widely integrates electronic manoeuvring and data transmission (fire, chambered cartridge, magazine presence, remaining cartridges . . . ) means whose integration leads to a 40% reduction of classical mechanisms such as striking, rod-pushing and other mechanical coupling with matching weight and room savings.
  • the present body substitutes advantageously the classical cocking levers and feeding/extracting mechanisms by a single distributing handle reducing the weapon weight and volume.
  • the suppression of former parts is optimized thanks to the development of a barrel and fire functions selection device housed in the main handle and the smart integration of a gun rest bipod into the front handle.
  • the body is thus organised to also integrate a telescopic bayonet/flame mitigator reducing even more the volume, suppressing the setting up matter and guaranteeing the soldier an immediate use and rapid deployment of this accessory.
  • This body also integrates the systems described in patents 0108250 et 0204731 such as microprocessor management, counter-trigger safety, caseless firing, biometric user identification, magazine compartments sequencing and a computer connexion port.
  • a gas damper, geared towards high specific power ammunitions firing is exposed in this patent in order to counter the recoil effects of heavy ammunitions.
  • Said body comprises:
  • the present patent concentrates a maximum number of applications (cocking-lever, bi-pod) in a minimum operating levers (a single distributing handle/pump for two breeches) leading to a practical and light solution.
  • the patent EP 0416 642 A2 describes a small calibre weapon integrating two barrels with dedicated clips, arranged one beneath the other.
  • a fire control mechanism is common to both barrels.
  • the weapon has naturally two cocking levers and its formula cannot be justified, in the present case of two same calibre barrels, unless to prevent a possible jamming of one of them as well as improving the fire autonomy.
  • the formula leads to numerous inconvenient.
  • the Lacroix Tous Artifices patent FR 94 07230 introduces a superimposed twin-barrel firearm intended for different gauge ammunitions.
  • the weapon supposed to be suspended under the forearm, brings numerous ergonomics interrogations unapproached by the inventor muscular fatigue resulting from the hanging weapon, shooting accuracy with a free-floating weapon, yaw control, no clip replacement without dropping the weapon . . .
  • the firearm integrates a friction damper, furthermore described in patent FR 92 13428, for large calibre and high specific impulse ammunitions.
  • This damper drawback is to require a somewhat long travel penalizing the overall weapon size and to be particularly sensitive to outside greasy or liquid agents susceptible to degrade the performances.
  • propellant gazes for the damper such as described in the present patent, frees the user from the risky presence of oils, greasy agents or water, inherent to weapons and otherwise susceptible of being highly prejudicial to a friction damper when firing some high impulse ammunition.
  • the ergonomic of the Lacroix formula limits the weapon use, its feeding system with no extraction device leading to easy jamming, its damper being penalizing in term of overall size and its formula risky in regard to the current presence of some greasy agent in a weapon.
  • No bi-pod is either integrated and the 90° disposition of the clips adds even more to the overall size.
  • the invention comprises a body for personal firearm intended for semi-auto and automatic firing with two different bore barrels mounted parallel, horizontally and side-by-side.
  • This disposition suppresses the inconvenient of a superimposed mounting leading to a differential length for barrels and assures them an optimal sizing for the best ammunition efficiency.
  • the superimposed barrel disposition requires the consideration of the feeding system volume, usually representing 25% of the weapon length, leading to an equivalent length amputation of the corresponding barrel.
  • This body offers a particularly ergonomic handling of the firearm thanks to its original conception based on a central tapered stock, with a preferred hexagonal section, underneath which three handles are positioned: one at the centre and one at each end. The organisation and presence of these handles are geared to assuming several roles or functions described hereby.
  • the ⁇ bull-pup>> design of the body is improved here by a pronounced aft positioning of the barrels whose fairing ( 1 ) extends beyond the back of the stock/housing for clips, forming an ergonomic busc ( 5 ) guaranteeing thus a strictly identical handling during each shot, especial for reactive shootings when aiming is often erratic.
  • a 10 to 20 m/m site shift of the stock on the shoulder is easily observable on weapons equipped with classical stocks, leading to a change in shooter's head position as well as alignment of the ailing line with the eye.
  • This new weapon configuration offers thus a noticeable advantage by directly presenting the aiming reticule in line with shooter's eye limiting the head tilting and aiming delay.
  • the components disposition is moreover particularly adapted to the weapon raise control during fire.
  • the presence of a front handle eases the shooter to produce a containment effort of the diving moment type naturally countering any weapon raising tendency during a burst shooting.
  • This body is absolutely ambidextrous thanks to a barrel selector ( 16 ) located on the central handle ( 2 ) ensuring the double function of bore selection (right or left side) and (central position) laze shootings.
  • the weapon electronics ensures an automatic reticule presentation in the collimator as well as shooting parameters for the selected ammunition.
  • the drawing 1 / 8 shows one figure ( 1 ) describing a cutaway view of the body at the small bore barrel level.
  • the drawing 2 / 8 shows one figure ( 2 ) describing a cutaway view of the body at the large bore barrel level.
  • the drawing 3 / 8 shows four figures ( 3 , 4 , 5 & 6 ) describing the side-by-side clips arrangement with breeches selection/locking devices.
  • the drawing 4 / 8 shows one figure ( 7 ) describing the handle/pump/bi-pod unit mechanism.
  • the drawing 5 / 8 shows one figure ( 8 ) describing a cutaway view of the firearm with deployed bi-pod.
  • FIG. 9 describing the OO′ cutaway of constituting elements for the handle/pump/bi-pod unit
  • FIG. 10 describing the cutaway of the cocking lever bar support/guide unit in retracted position
  • FIG. 13 presenting the seen from under view of the body with its extension/retraction cone for pump/handle halves.
  • the 7 / 8 drawing shows five figures ( 14 , 15 & 16 ) presenting the telescopic bayonet mechanism and the ergonomic increment selector for the range meter.
  • the 8 / 8 drawing shows three figures ( 17 , 18 & 19 ) presenting the high impulse ammunition damper system with its regulation valve.
  • the selected body ( 1 ) for demonstrative purpose is preferably but not exclusively of the assault rifle type, the principle of the invention being applicable to all cahoots and types of light firearms.
  • the body comprises a main frame, body or stock integrating a bedding ( 6 ) in which the barrels ( 8 & 9 ) are affixed thus including a limited number of parts. Such a characteristic should lead to important economic consequences in term of production cost, shooting accuracy and maintenance.
  • the weapon includes (drawings 1 to 8 / 8 ):
  • Barrel or bore selection is operated via a two to three positions selector ( 16 ) (left-neutral-light) located on the central handle ( 2 ) under the trigger-guard in order to be permanently accessible by the major finger.
  • This selector includes at its end a mechanism (fork, locking pin . . . ) cooperating with the breech cocking shaft/rod in order to favour the switching of said rod towards the appropriate breech ( 14 or 15 ) for its engagement simultaneously following said selector switching.
  • This selector ensures the laser rangefinder triggering when a pressure is applied as well as the simultaneous presentation of selected calibre parameters in the fire control sight
  • each barrel breech ( 14 & 15 ) by the cocking rod ( 27 ) said breeches are characterized in that they include on their lower side face a housing ( 29 & 30 ), machined in depth in the mass, symmetrically female shaped to the rod ( 27 ) end integrating a hook ( 31 ) with which they cooperate.
  • the rod hook ( 31 ) has a flat face ( 32 ) perpendicular to the axis of said rod in order to generate a strong push on the breech during the back travel of the pump/handle ( 3 ), as well as a tilted for the breeches female housing hook engagement during a forward return of said breeches.
  • the female hook of breeches housings ( 29 & 30 ) is to be side engaged par that ( 31 ) of said rod and said housings are so conceived that they authorise a vertical clearance of said rod to favour the disengagement of its own hook ( 31 ) from the breeches female hook when raised.
  • the rod end stays always, under the distributing action of the steering stem of the breech selector, engaged in the selected breech housing in order to ensure, during a pump/handle back travel, the backwards movement of said breech.
  • Rod/Breeches Coupling Device (Drawings 1 / 8 & 3 / 8 , FIGS. 1, 3 , 4 , 5 & 6 )
  • a rod/breech unlocking device is implemented at the trigger level. This device ensures, when a pressure is applied on the trigger, a rising of the cocking rod ( 27 ) by a cam integral with the trigger and set up in direct contact with said rod or via a vertical bushel moved by said cam. A pressure applied on the trigger initiates an upwards movement of the cam which raises the cocking rod and causes its desolidarisation from the matching breech ( 14 or 15 ) and this as long as the trigger remains depressed. Therefore there is no hooking risk of the breech during a sustained fire (burst).
  • This device includes slits or housings ( 33 bis) located on each breech and a swing locker/selector ( 33 ) V or crescent shaped characterized in that it be mounted in front of the slits between the two breeches and articulated according to a parallel axis to the weapon's one, in such a way that the cocking rod ( 27 ) passes inside the V to cause, during a side move of said rod, a swing movement of the locker of which a branch comes to engage the slit ( 33 bis) of the unselected barrel to lock it and simultaneously clear the selected breech's one to liberate it.
  • a compression spring pushing at the V or crescent base will ensure a net and precise swing.
  • the pump/bi-pod/handle unit includes the following elements:
  • Manoeuvring the pump/handle/bipod unit is obtained by pressing the trigger ( 34 ) to in a backwards movement to chamber a cartridge or a frontward movement to deploy the integral bi-pod.
  • the cocking rod After selection of the appropriate barrel and engagement of the matching breech housing, draws said breech backwards for cartridge extraction.
  • the breech and rod are linked together by the hook ( 31 ) in order to prevent any untimely opening of the selected breech under an inertial shock.
  • the swing locker/selector freezes the other breech.
  • the bi-pod integration to the pump/handle provides the most advantageous room and weight saving for the best ergonomic.
  • the deployment of the bi-pod is obtained by pressing the pump/handle trigger ( 34 ) then pushing the handle frontward taking care of opening the hand to favour the immediate splitting of both half-handles.
  • This action disunites the handle base block ( 39 ) from the steering block ( 50 ) of the cocking rod ( 27 ) and alternate lever ( 51 ).
  • the steering block ( 50 ) remains in course abutment ( 58 ) of the steering rod ( 56 ) which is screwed/pinned at its end to the body the trigger side of the weapon.
  • the rod adopts an oval section (with vertical main axis) for the length corresponding to the steering block ( 50 ), rod ( 27 ) and alternate lever ( 51 ) course, then, on the remaining length adopts a round section whose diameter is equal to the large axis of said oval section
  • Such a disposition ensures an abutment effect ( 58 ) for the steering block ( 50 ) whose rod ( 56 ) travel channel section is matching said oval rod, preventing any further overshoot of the scheduled course.
  • the channel through handle base block ( 39 ) of the pump/handle unit is, on the other hand, round to ensure said pump/handle unit sliding over the whole rod ( 56 ) length.
  • the steering rod ( 56 ) bears two notches for trigger ( 34 ) engagement matching two positions: neutral (alternate lever at rest) and deployed bi-pod, as well as a travel groove ( 59 ) for an erasable abutment ( 40 ) of roll neutral positioning (vertical) of the handle base block ( 39 ) of the pump/handle unit.
  • Bi-pod retraction during the backwards movement of the pump/handle unit is conducted with the following operations (drawing 4 , 5 & 6 / 8 , FIG. 7 to 13 ):
  • the mounting of half-handles into the steering/base block ( 50 ) is conducted by engagement of the rotation axis of each half-handle casing/support ( 43 ) in their matching housing of block ( 42 ) taking care to position and compress their return spring ( 47 ), then pining each half-handle with an axial pin.
  • Another half-handle split open position call formula would consist in a single inverted U shaped spring whose branches would engage a slit housing arranged in each half-handle casing/support ( 43 ) or even more the single piece realisation of the block ( 42 ) with both half-handles casing/supports ( 43 ) out of a composite material with a resiliency adapted to said half-handles splitting.
  • the telescopic elements ( 35 ) of each handle are made out of a similar technology to that of cartridge magazine (folded welded metal sheet, composite, extruded profiles . . . ) manufacturing.
  • a single spring, housed in each half-handle (composite, foundry . . . ) is enough for a full leg deployment the length adjustment of each leg is obtained by pressing onto the arrester ( 37 ) in order to engage the appropriate notch.
  • both telescopic elements ( 35 ) in extended position is obtained via an erasable pin ( 38 ) either by inertial shock (hand palm applied at leg's tip) or by pressing the notch extremity.
  • the assembly of half-handles with their casing/support ( 43 ) is obtained by encasing and pining.
  • the bi-pod telescopic elements arrester ( 36 ) in retracted position is preferred integral with the casing/support ( 43 ) and may advantageously be made out of composite in a single part with said casing.
  • the present body being intended to receive a modern firecontrol unit (infrared, optronics . . . ) integrates for shooter's ease a whole set of commands whose ergonomic participates of the same efficiency and simplification research as for the pump/handle/bi-pod unit.
  • a modern firecontrol unit infrared, optronics . . .
  • an ergonomic control device is implemented, including a selector ( 64 ) (square or crescent shaped to accommodate shooter's thumb) on each side (ambidexterity) of the central handle in order to be activated by shooter's thumb.
  • a forward thumb pressure generates a swing or movement of this lever with concomitant action at the fire control level. This lever is repeated on both firearm sides for perfect ambidextrous use of the body.
  • a telescopic bayonet ( 13 ).
  • This bayonet is characterised in that it be composed of an open tube, tapered at one end, telescopic and sling mounted around a barrel (preferentially the small calibre one).
  • a spring arrester ( 65 ) integral with the bayonet, engages two arresting notches located on said barrel, one near the bedding ( 6 ) and the other at the end, respectively corresponding to the retraced and extended position.
  • Openings (round, oval, rectangular . . . ) (66) eventually harmonized with the barrel rifling are arranged at the circumference of the bayonet in such order that, when extended, they act as a flame mitigator.
  • This bayonet integration is particularly advantageous since it leaves the soldier the benefit of its personal dagger (acting as a prior bayonet) as ultimate defence/survival mean should he loose his weapon.
  • the integration of this accessory inside the weapon suppresses all fastidious and time consuming mounting dismantling operations, reduces dangerous handling operations and offers the possibility to be set up only when required, combining advantageously the flame mitigator function.
  • Such a bayonet may advantageously be adopted on a single barrel weapon.
  • Recoil Absorbing System (DRAWING 8 / 8 , FIGS. 17, 18 & 19 )
  • the present body incorporates a gas recoil absorber system intended to reduce the recoil effect of high specific impulse ammunitions, especially for caseless ones.
  • the breech head ( 15 ) constitutes a sealing piston according to patents n° 0204731 and 0300520 stipulations of the same author. The course of its alternative backward/forward travel is ensured by a breech recoil guiding rod ( 80 ) integral with the barrel/chamber unit for a precise guidance.
  • the recoil absorbing system includes:
  • propellant gazes are tapped ( 73 ) at the piston head ( 82 ) level to be conducted, via a distribution/regulation floodgate ( 74 ) and a gas pipe ( 73 bis) arranged in the breech ( 15 ) recoil guiding rod ( 80 ), to a cylinder ( 72 ) inserted into a guiding rod abutment ( 81 ) housing pinned onto said rod.
  • the cylinder ( 72 ) houses a piston ( 71 ) located in the barrel axis and at the back of the breech ( 15 ) of which it is integral with.
  • the distribution/regulation floodgate ( 74 ) ensures the progress of propellant gases towards the recoil absorber cylinder during their pressure rise and towards the bleed pipe ( 79 ) during their pressure decrease.
  • the bleed pipe ( 79 ) runs alongside the barrel in order to open onto its end to prevent any gas leak inside the weapon.
  • This pipe ( 79 ) is less than that of the feeding channel ( 73 bis) for recoil absorber to produce a gas flow differential during the pressure decrease.
  • the distribution/regulation floodgate ( FIGS. 17 & 18 , 74 ) includes a drawer ( 75 ), integrating two gas switch pipes ( 76 & 76 bis), mounted sliding in a housing (squared, oblong . . . ) preventing any self rotation of said drawer.
  • the drawer is kept into position by a return spring ( 77 ).
  • the floodgate is connected to the gas port pipe ( 73 ) of the piston head ( 82 ), to the cylinder damper ( 73 bis) and bleed ( 79 ) pipes in order that when the drawer is at rest ( FIG.
  • the switch pipe ( 76 bis) ensures the communication of the gas pipe for cylinder damper ( 73 bis) with that of the bleed pipe ( 79 ) and the simultaneous closure of the gas port pipe ( 73 ) of the piston head ( 82 ).
  • This disposition constitutes a free air bleed for the recoil absorber to favour the breech backtrack during a shooter's manual action.
  • the absorber piston bore is, on the other hand, such that it represents a fraction (1 ⁇ 2 for example) of that of the sealing piston head ( 82 ) or breech ( 15 ).
  • the pressure exerted by said breech during the departure of the ammunition generates a recessing of said piston ( 71 ) into its matching cylinder ( 72 ) ensuring an initial recoil absorption in due proportion of the absorber piston bore and sealing piston head surface ratio.
  • the ammunition travels into the barrel with a pressure lowering in the chamber up to become quickly inferior to that in the recoil absorber cylinder ( 72 ).
  • the regulating drawer ( 75 ) closes then and the switch pipe ( 76 bis) ensures the communication of the gas pipe for cylinder damper ( 73 bis) with that of the bleed pipe ( 79 ) at a flow in due sections proportion in order to ensure a controlled “deflating” of said absorber.
  • This effect generates a progressive and continuous recess of the recoil absorber piston ( 71 ).
  • the pressure suddenly falls to zero on the side of the breech head ( 15 ) which continues its travel towards the back of the weapon under the stored energy (movement quantity) effect.
  • the shock absorber cylinder keeps on “deflating” via the bleed pipe ( 79 ) and continuing its absorbing effect, combined with the compression one of the recoil spring ( 78 ), until the breech reaches its course end.
  • the return spring takes then over to ensure the forward breech return with a new cartridge introduction.
  • the resulting damping effect is spread over the whole piston ( 71 ) course.
  • a change in the pistons ( 71 ) and breech sections ratio permits to modulate the effects, especially at chamber opening.
  • a near to 1 ratio leads to breech locking, during ammunition travel in the barrel, detrimental to the device shock absorbing effect.
  • the store energy is dissipated during piston recoil driving the gases through the bleed pipe.
  • a near to 1 ⁇ 2 ratio will produce a half recoil of the weapon.
  • a judicious flow ( 79 ) dosage of bleeding gases via the distribution/regulation floodgate ( 74 ) may be obtained with an adjustable tuning of the drawer ( 75 ) via a screw ( 75 bis) in order to increase or reduce the facing of the switch pipe ( 76 bis) and bleed pipe ( 79 ) sections.
  • the initial recoil damping effect is equal to the breech and shock absorber pistons sections ratio. An appropriate value of this ratio may be adopted to create a delay effect at breech opening.
  • the sealing principle of the recoil absorber piston ( 71 ) follows that of the breech ( 15 ) as related in patents n°0204731 and 0300520 of the same author.
  • a self expanding corolla (under gas pressure) placed at piston's head will guarantee a perfect sealing to the damper.
  • the present system is furthermore compatible with cased ammunitions firing should a gas port be advantageously positioned at the case rim level whose presence generates however a to the gas feeding retard due to the ammunition/case separation delay during which the breech recoil cannot be subdued.
  • Fuel Cells (Drawing 2 / 9 , FIG. 2 )
  • housing a modern fire control (infrared, optronics . . . ) generates electric consumption problems that fuel cells may overcome.
  • the body integrates a housing ( 70 ) for a fuel cell and its fuel cartridge located into the stock/handle ( 4 ) behind the magazines housings ( 22 & 23 ).
  • This disposition allows for any future housing volume increase via a simple lengthen of the aft part of the stock/handle ( 4 ), busc ( 5 ) and main body ( 1 ) without requiring a perceptible weapon modification but its length.
  • the trigger constitutes a true three positions sealed rotactor whose axis is confounded with trigger's one.
  • the shot by shot or full auto is then obtained by progressive rotation of the trigger.
  • the fire rate programming as well as the number of ammunitions shot during a burst is conducted by a simple plugging the weapon to a computer (access by code and authentification).
  • the weapon in addition to its firecontrol parameters display capability, integrates an additional display screen ( 68 ) for the following informations:
  • the display screen will advantageously be located ( FIG. 1 , n° 68 ) at the back of the weapon body, in the aiming sight axis in order to be permanently visible by the shooter. This screen presence is important, especially in case of firecontrol failure that might lead shooter to abandon it.
  • the electronic circuit of the weapon comprises a clock and a memory whose information is displayable on said memory interrogation via a port, located at the back of the central handle.
  • the weapon integrates a cartridge counter device by registering the presence of a cartridge in the chamber and the knowledge of the position of the front and aft conveyers of the magazine.
  • the magazine well is equipped with contactors located inside the frame at the top and bottom of the motion sliding groove of each button of conveyer.
  • the information of position of each button thus collected is transmitted to the central microprocessor which assigns a value, contained in its memory and abounded of the detection of a possible presence of cartridge in the barrel, reflecting the total capacity of the weapon.
  • the distinction between various models of magazines follows the same principle: a contactor located in the weapon magazine well allows the central processing unit calculation, if actuated, to identify the type of magazine and to display the information relating to effective capacity according to the conveyers position and the information of presence of a cartridge in the barrel.
  • the magazine well may integrate a sensor scale to detect the passage of a marker (magnetic, electroluminescent . . . ) located on the conveyer of each compartment Spacing between each sensor corresponds to the displacement of the conveyer during the withdrawal of a cartridge from the corresponding compartment
  • a marker magnetic, electroluminescent . . .
  • the number of shots may be determined by the number of discharges actually entered to the igniter (no electrical contact in the absence of cartridge) or by inductive currents in the case of an inductive igniting process.
  • the weapon according to the invention must be capable of irreproachable operation whatever may be the environmental conditions (violent storms, strong radars radiation, nuclear electromagnetic flashes . . . ).
  • necessary shielding of the vital elements central processing unit, identification memories block . . . ) will be adopted in order to guarantee a perfect insensibility to these phenomena.
  • twin barrel body conception offers numerous advantages compared to present solutions, especially in terms of greater accuracy and firepower. These advantages are inventoried as follows.
  • the barrels are free floating mounted in their bedding, the side-by-side disposition guarantees their longest length for a real sniping capability.
  • Trigger safety made up of a particularly innovative “counter-trigger” since it favours a fast operation with the sole hand holding the weapon, in a fully ambidextrous way.
  • Ammunitions easy, simplified and economic storage: limited to the ready for use ammunitions.
  • the suppression of the worn case collecting, treatment and reconditioning procedures is synonymous of substantial savings.
  • Quadruple weapon safety by introduction of a removable locker for trigger, breech, magazine well and disassembling bolt locking.
  • Detention control systematic shooter habilitation turning the weapon according to the invention into a true answer to the unauthorized use problem.
  • this disposition of the compartments combined with a three piles organisation of the ammunitions in the magazine makes it possible to carry up to three times the current magazines capacity, that is to say more than a hundred cartridges.
  • This device concentrates the fire power of a machine-gun in an assault rifle, paving the way to a new market of compact and light weapons with superior fire power.
  • the effective (or projectable) mass is equal to that carried, that is to say 50% more than with classic ammunitions.
  • the body according to the invention constitutes a base to elaborate a new generation of weapons combining the advantages of the assault rifle, sniper rifle, machine gum and grenade launcher.
  • This new weapon breed opens a new era in the field of firearms performance that should answer the expectations of numerous police forces, armed forces, headquarters and Special Forces.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US10/587,891 2002-06-03 2003-06-03 Double-barrelled body for a personal firearm Abandoned US20070151438A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0206763 2002-06-03
FR0206763A FR2840397B1 (fr) 2002-06-03 2002-06-03 Chassis bi-canons pour arme individuelle
PCT/FR2003/001662 WO2003102488A1 (fr) 2002-06-03 2003-06-03 Chassis bi-canons pour arme individuelle

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US20070151438A1 true US20070151438A1 (en) 2007-07-05

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AU (1) AU2003255625A1 (fr)
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EP2525183A1 (fr) * 2011-05-19 2012-11-21 Arsenal Firearms Finance Limited Pistolet à double barillet et magasin à deux rangées
US20150377572A1 (en) * 2014-06-26 2015-12-31 MP&K Group Inc. System and method for tracking ammunition
CN105865260A (zh) * 2013-04-02 2016-08-17 王龙 一种具有指纹识别功能的92式手枪
RU2614742C1 (ru) * 2015-12-29 2017-03-29 Александр Георгиевич Семенов Стрелковое оружие
RU2619975C2 (ru) * 2015-06-16 2017-05-22 Иван Максимович Котляр Двуствольный автомат калашникова
CN107044798A (zh) * 2017-05-19 2017-08-15 朱继琼 高超音速无弹壳炸药子弹的发射枪
CN108072294A (zh) * 2016-11-23 2018-05-25 深圳市轻准科技有限公司 一种榴弹发射器
CN110345810A (zh) * 2019-08-13 2019-10-18 安徽理工大学 一种复合式电磁狙击步枪
US11022386B2 (en) 2019-08-15 2021-06-01 Smith & Wesson Inc. Firearm breech cover interlock
US11035636B2 (en) 2019-07-26 2021-06-15 Smith & Wesson Inc. Shotgun ammunition feeding system
CN114294994A (zh) * 2021-12-31 2022-04-08 苗军 一种间歇换膛的无壳弹枪
US11306995B2 (en) 2019-08-06 2022-04-19 Smith & Wesson Inc. Shotgun configuration
US11306986B1 (en) 2021-02-22 2022-04-19 Lemoy Titus Transformer sub-pistol firearm
US11326845B2 (en) 2019-08-13 2022-05-10 Smith & Wesson Inc. Firearm having reciprocable breech cover

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2525183A1 (fr) * 2011-05-19 2012-11-21 Arsenal Firearms Finance Limited Pistolet à double barillet et magasin à deux rangées
RU2623317C2 (ru) * 2011-05-19 2017-06-23 Арсенал Файерармз Файнэнс Лимитед Двуствольный пистолет и двухрядный магазин
US11293708B2 (en) 2011-05-19 2022-04-05 Arsenal Firearms Finance Limited Double-barrelled gun and two-row magazine
US9995547B2 (en) 2011-05-19 2018-06-12 Arsenal Firearms Finance Limited Double-barrelled gun and two-row magazine
US20180283819A1 (en) * 2011-05-19 2018-10-04 Arsenal Firearms Finance Limited Double-Barrelled Gun And Two-Row Magazine
CN105865260A (zh) * 2013-04-02 2016-08-17 王龙 一种具有指纹识别功能的92式手枪
US20150377572A1 (en) * 2014-06-26 2015-12-31 MP&K Group Inc. System and method for tracking ammunition
RU2619975C2 (ru) * 2015-06-16 2017-05-22 Иван Максимович Котляр Двуствольный автомат калашникова
RU2614742C1 (ru) * 2015-12-29 2017-03-29 Александр Георгиевич Семенов Стрелковое оружие
CN108072294A (zh) * 2016-11-23 2018-05-25 深圳市轻准科技有限公司 一种榴弹发射器
CN107044798B (zh) * 2017-05-19 2018-12-21 叶泽洲 高超音速无弹壳炸药子弹的发射枪
CN107044798A (zh) * 2017-05-19 2017-08-15 朱继琼 高超音速无弹壳炸药子弹的发射枪
US11035636B2 (en) 2019-07-26 2021-06-15 Smith & Wesson Inc. Shotgun ammunition feeding system
US11306995B2 (en) 2019-08-06 2022-04-19 Smith & Wesson Inc. Shotgun configuration
CN110345810A (zh) * 2019-08-13 2019-10-18 安徽理工大学 一种复合式电磁狙击步枪
US11326845B2 (en) 2019-08-13 2022-05-10 Smith & Wesson Inc. Firearm having reciprocable breech cover
US20220228825A1 (en) * 2019-08-13 2022-07-21 Smith & Wesson Inc. Firearm Having Reciprocable Breech Cover
US11703292B2 (en) * 2019-08-13 2023-07-18 Smith & Wesson Inc. Firearm having reciprocable breech cover
US11022386B2 (en) 2019-08-15 2021-06-01 Smith & Wesson Inc. Firearm breech cover interlock
US11306986B1 (en) 2021-02-22 2022-04-19 Lemoy Titus Transformer sub-pistol firearm
US11703294B2 (en) 2021-02-22 2023-07-18 Lemoy Titus Transformer sub-pistol firearm
CN114294994A (zh) * 2021-12-31 2022-04-08 苗军 一种间歇换膛的无壳弹枪

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AU2003255625A1 (en) 2003-12-19
FR2840397A1 (fr) 2003-12-05
FR2840397B1 (fr) 2004-09-10

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