Device and method for recoil-free shooting

Abstract

A recoil-free shooting system is disclosed. The system includes a primary barrel configured to fire a primary projectile in a first direction and a secondary barrel configured to fire a counter-projectile in an opposite direction to offset recoil. A firing mechanism, which may include a double-striker tip or an electric striker, simultaneously initiates firing of both projectiles. In certain embodiments, one barrel is fixed to a carrying frame while the other is movable along a longitudinal axis to adjust chamber spacing and synchronize firing, with movement controlled by a trigger unit including a release lever and motor-actuated control. Additional embodiments include a disposable firing unit supported to allow motion along a transverse axis, enabling recoil -mitigating displacement during firing. Methods for recoil-free shooting are also provided, including loading paired projectiles, calibrating the counter-projectile to match recoil impulse, and synchronizing simultaneous discharge.

Description

DEVICE AND METHOD FOR RECOIL-FREE SHOOTINGCROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of priority of IL Patent Application No. 318670, filed January 28, 2025, which is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention relates generally to shooting devices and methods. More specifically, the present invention relates to devices and methods for recoil-free shooting, from a carrying platform such as Unmanned Arieal Vehicles.BACKGROUND OF THE INVENTION

[0003] Unmanned aerial vehicles (UAVs) have become increasingly prevalent in tactical, surveillance, and precision-strike operations. The integration of firearms with drones presents significant technical challenges, primarily due to the recoil generated during firing. Recoil forces can range from tens to hundreds of kilograms for larger calibers, often exceeding the weight capacity that drones can support. UAVs typically accommodate only a few kilograms of payload, necessitating innovative methods to mitigate recoil without destabilizing the drone.

[0004] Traditional firearms, such as handguns and rifles, experience substantial recoil that can reduce shooting accuracy, particularly in rapid-fire scenarios. Various solutions have been developed to manage firearm recoil, including gas-blowback systems, recoil springs, and compensators. These solutions are primarily designed for manned firearms and do not adequately address the requirements of UAVs. Maintaining precise stability is crucial for drones, and existing solutions fail to fully compensate for the recoil forces encountered in this context.SUMMARY OF THE INVENTION

[0005] In one embodiment, the disclosure includes a device for recoil-free shooting, comprising a primary barrel configured to fire a primary bullet in a first direction; a secondary barrel configured to fire a counter-bullet in a second direction, opposite to the first direction, the counter-bullet is configured to offset the recoil impulse of the primaryprojectile; a firing mechanism configured to simultaneously fire both the primary bullet in the first direction and the counter-bullet in the second direction, wherein at least one of the primary barrel and the secondary barrel are fixed to a carrying frame.

[0006] In another embodiment, the device further comprises a trigger unit configured to synchronize the firing of the primary bullet and counter-bullet. The firing mechanism comprises a double-striker tip, between the primary barrel and the secondary barrel, configured to trigger both the primary bullet and the counter-bullet simultaneously. The double-striker tip is an electric striker, comprising an electric current source configured to deliver an electric current to both the primary bullet and the counter-bullet simultaneously. The device further comprises tracks to allow sliding movement of one of the primary barrel and secondary barrel, thereon, wherein one of the primary barrel and the secondary barrel is fixed to a carrying platform and the other barrel is movable along a longitudinal axis of the primary barrel and secondary barrel, to allow changing the distance between a first chamber of the primary barrel and a second chamber of the secondary barrel. The trigger unit comprises a controlled motor, configured to change a state of a release lever from a first state, preventing movement of the movable barrel towards the fixed barrel, and a second state, allowing movement of the movable barrel towards the fixed barrel, and wherein, when the lever is in the second state, a spring forces the movable barrel towards the fixed barrel, forcing the moveable barrel and the double-striker tip towards the fixed barrel.

[0007] In a third embodiment, the disclosure includes a method for recoil-free shooting, comprising providing a primary barrel configured to fire a primary bullet in a first direction; providing a secondary barrel configured to fire a counter-bullet in a second direction, opposite to the first direction, the counter-bullet being configured to offset the recoil impulse of the primary bullet; loading the primary bullet into the primary barrel and the counterbullet into the secondary barrel; synchronizing the firing of the primary bullet and the counter-bullet using a firing mechanism; simultaneously firing the primary bullet in the first direction and the counter-bullet in the second direction to achieve recoil cancellation. The method further comprises calibrating the mass and speed of the counter-bullet to match the recoil impulse of the primary bullet. The counter-bullet is a blank bullet. The firing mechanism includes a double-striker tip positioned between the primary barrel and the secondary barrel. The double-striker tip is an electric striker configured to deliver an electric current to both the primary bullet and the counter-bullet simultaneously. The method furthercomprises remotely activating the trigger unit to cause the simultaneous firing of the primary bullet and the counter-bullet. Activating the trigger unit is time based, location based or any combination thereof. The method further comprises using a spring mechanism to force the movable barrel towards the fixed barrel to achieve simultaneous firing.

[0008] In a fourth embodiment, the disclosure includes a device for recoil-free shooting, comprising a disposable firing unit comprising: a disposable barrel; a firing pin; a firing pin actuator; and a bullet, secured in a chamber of the disposable barrel; a support frame configured to support the disposable firing unit preventing motion thereof along a first axis, while allowing free movement of the firing unit along a second axis, substantially perpendicular to the first axis; and a trigger unit comprising: a trigger; a control unit; and a firing pin release lever, wherein the firing unit is dischargeable in a direction opposite to a firing direction along the second axis, in order to mitigate the recoil impulse. The control unit is configured to actuate the trigger to move from a first position to a second position, thereby causing the firing pin release lever to initiate a shot. The movement of the trigger causes the firing pin release lever to activate the firing pin actuator. The control unit comprises a controlled motor, configured to change the position of the trigger from the first position to the second position, based on a firing instruction received by the control unit. The firing pin actuator is a spring, that when released forces the firing pin towards a primer of the bullet in the chamber of the disposable barrel. These and other features will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings and claims.BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The subj ect matter regarded as the invention is particularly pointed out and distinctly claimed in the concluding portion of the specification. The invention, however, both as to organization and method of operation, together with objects, features, and advantages thereof, may best be understood by reference to the following detailed description when read with the accompanying drawings in which:

[0010] FIGS. 1 A and IB depict a recoil-free shooting device according to one embodiment of the present invention;

[0011] FIG. 2 depicts a prototype of a device according to some embodiments;

[0012] FIG. 3 depicts the prototype of Fig. 2 in a shooting state;

[0013] FIG. 4 is a flowchart of a method of recoil-free shooting according to some embodiments;

[0014] FIG. 5 is a schematic illustration of a recoil-free shooting device and a bullet with a disposable bolt unit, according to some embodiments of the present invention;

[0015] FIGS. 6A, 6B and 6C are illustrations of the device of Fig. 5 in three different stages of operation, according to some embodiments;

[0016] FIG. 7 is a flowchart of a method of single barrel recoil-free shooting according to some embodiments; and

[0017] FIGS. 8 A, 8B and 8C are illustrations of a recoil-free shooting device with a disposable single barrel, in three different stages of operation, according to some embodiments.

[0018] It will be appreciated that for simplicity and clarity of illustration, elements shown in the figures have not necessarily been drawn to scale. For example, the dimensions of some of the elements may be exaggerated relative to other elements for clarity. Further, where considered appropriate, reference numerals may be repeated among the figures to indicate corresponding or analogous elements.DETAILED DESCRIPTION OF EMBODIMENTS OF THE PRESENT INVENTION

[0019] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.

[0020] Although embodiments of the invention are not limited in this regard, discussions utilizing terms such as, for example, “processing,” “computing,” “calculating,” “determining,” “establishing”, “analyzing”, “checking”, or the like, may refer to operation(s) and / or process(es) of a computer, a computing platform, a computing system, or other electronic computing device, that manipulates and / or transforms data represented as physical (e.g., electronic) quantities within the computer’ s registers and / or memories into other data similarly represented as physical quantities within the computer’s registers and / or memories or other information non-transitory storage medium that may store instructions to perform operations and / or processes. Although embodiments of the invention are notlimited in this regard, the terms “plurality” and “a plurality” as used herein may include, for example, “multiple” or “two or more”. The terms “plurality” or “a plurality” may be used throughout the specification to describe two or more components, devices, elements, units, parameters, or the like. The term set when used herein may include one or more items.

[0021] Aspects of the present invention include a recoil -cancellation system, device and method wherein two projectiles are fired in opposite directions. The primary bullet is directed toward the intended target, while a secondary counter-bullet, filled with a non-1 ethal material (such as sand), is fired in the opposite direction. This secondary counterbullet may be designed to cancel the recoil produced by the primary shot, thus stabilizing the carrying platforms, such as a drone, during and after firing.

[0022] The counter-bullet’s mass and launch speed may be calibrated to offset the recoil impulse generated by the primary projectile. The counter-bullet may include, instead of a standard projectile, a capsule or other envelope, filled with a harmless material (e.g., in powder form) to ensure no harm or unintended damage results from its discharge.

[0023] The device may include a primary barrel that may be aligned with the desired shooting direction and a secondary barrel positioned directly opposite. Both barrels are mounted on a carrying frame (such as a drone).

[0024] |The primary bullet may be a traditional bullet or projectile tailored to the drone's mission requirements. The counter-bullet may have a capsule containing a predefined amount of sand or similar non-damaging material.

[0025] According to some embodiments, the primary bullet and counter-bullet are fired simultaneously using an electronic control unit. The counter-projectile’s speed and mass are calculated based on the desired recoil neutralization, which varies with the primary bullet's specifications. The actual firing mechanism (also called striker mechanism) can be implemented by delivering an electric current to the primers of both bullets, such as by discharging an electric capacitor, thereby initiating simultaneous firing. Alternatively, a mechanical solution such as a double-striker tip mechanism, illustrated in accompanying diagrams, can be used to trigger both projectiles. Another viable option involves the activation of a detonator to achieve synchronized discharge. This variety in activation methods allows for flexibility in adapting the system to different operational requirements and drone capabilities.

[0026] The firing system includes versatile trigger mechanism configurations suitable for remote and automated operations. This mechanism can employ the following methods:

[0027] Wireless Remote Activation: These trigger options allow adaptability based on mission requirements, facilitating either real-time operator control or autonomous firing for scheduled or time-sensitive missions. The mechanism can also integrate into broader UAV control systems to synchronize firing with navigation and stabilization controls.

[0028] An electric motor may be used to activate the trigger mechanism, controlled wirelessly by the operator. The operator can initiate the firing process from a remote location, ensuring safe and precise control. To prevent accidental firing, the wireless mechanism may incorporate authentication steps or dual-switch mechanisms, which require both a secure connection and operator confirmation.

[0029] Timer-Based Trigger: where a timer mechanism, programmable to specified intervals or conditions, automatically initiates the firing sequence. This method is beneficial for predetermined firing sequences, such as during automated surveillance or timed tactical operations where a failsafe options may be incorporated.

[0030] Reference is now made to Figs. 1A and IB, depicting a recoil-free shooting device 100 according to an embodiment of the present invention. Recoil-free shooting device 100 may include a primary barrel 111, a secondary barrel 113, and a double-striker tip 112.

[0031] As illustrated in Figs 1A and IB, barrels 111 and 113 may be directed in opposite directions, so that primary barrel chamber Illa of primary barrel 111, faces secondary barrel chamber 113a of secondary barrel 113. According to some embodiments, doublestriker tip 112 may be positioned between primary barrel chamber Illa and secondary barrel chamber 113a.

[0032] According to some embodiments, one of primary barrel 111 and secondary barrel 113 may be fixed to a carrying platform, such as a UAV (e.g., a drown), while the other barrel may be movable along tracks 114, so that the distance between chambers Illa and 113a, along a longitudinal axis of the barrels 111 and 113, may be changed. According to some embodiments, double-striker tip 112 may also be movable along tracks 114. It should be appreciated that when the distance between the chambers Illa, 113a is brought to minimum, the striker tips of double-striker tip 112 may come in contact with primers of cartridges (also referred to as bullets) inserted into chambers Illa, 113a, so as to allow simultaneous firing of both cartridges, in opposite directions.

[0033] Device 100 may further include trigger unit 130 and a release lever 150. Release lever 150 may be configured to prevent movement of the movable barrel, and in some embodiments of the double-striker tip 112, in a first state, and to allow movement of the movable barrel (and in some embodiments of tip 112) in a second state of release lever 150. Trigger unit 130 may be activated to cause release lever 150 to change its states between the first and second states. According to some embodiments, when release lever 150 is in the second state, one or more springs, elastic bands or the like (not shown), may be released to cause the movable parts (i.e., the movable barrel and the double-striker tip 112) to slide along tracks 114 towards the fixed barrel. When a first gap G1 between the movable barrel and the double-striker tip 112 is closed, and a second gap G2 between the double striker tip 112 and the fixed barrel, are closed, each tip of the double-striker tip 112 may engage a primer of a bullet placed in one of the barrels and cause simultaneous firing of the bullets, in opposite directions. As may be seen in Fig. IB, release lever 150 is in the second (e.g., lowered) state, allowing a spring (not show) force to push and move secondary barrel 113 towards one side of double-striker tip 112, and consequently pushing double-striker tip 112 towards primary barrel 111, thus closing the gaps Gl, G2 and allowing the simultaneous firing of a primary bullet towards a desired target, and a counter-bullet in an opposite direction.

[0034] According to some embodiments, device 100 may further include, a safety latch 120, removeable placeable within gaps Gl, G2, thus preventing unintentional engagement of double-striker tip 112 and primers of bullets in chambers Illa, 113a.

[0035] According to some embodiments, double-striker tip may be an electrical striker causing an electric current to path to the primers of the bullets in chambers Illa and 113a, to cause the simultaneous firing of the bullets. It should be appreciated that in such an embodiment, lever 150 may not be required, and the double-striker tip and the primers may be in constant electric connection prior to activation of the trigger unit 130. According to other embodiments, release lever 150 may be used as another safety measure so that prior to firing, an electric contact may be achieved by changing the state of lever 150 to release, for example, a spring force to cause the moveable parts to move towards the fixed barrel and only once gaps Gl and G2 are closed, firing may be initiated.

[0036] Trigger unit 130 may include a motor (e.g. a servo motor, not shown), remotely controllable, to cause the simultaneous firing as described above. According to otherembodiments, trigger unit 130 may be preset to operate at specific conditions such as time elapsed e.g., since beginning of mission, reaching a predefined time and / or date, reaching a predefined location, and the like.

[0037] Reference is now made to Fig. 2, which shows a prototype of a recoil-free shooting device, similar to device 100 in Figs. 1A and IB, according to some embodiments of the present invention. Device 100 may include a primary barrel Al configured to accommodate and fire a primary bullet A5 in a first direction. The first direction may be the direction of a target (not shown).

[0038] Primary barrel Al may be designed to accommodate the specific requirements of the primary bullet A5. The primary barrel Al may be mounted to a carrying frame, such as a UAV. The primary bullet A5 may be selected according to the mission requirements.

[0039] According to some embodiments, secondary barrel A3 is configured to fire a counter-bullet A6 in a second direction, opposite to the first direction. The counter-bullet A6 may be a blank bullet, or may have instead of a projectile a capsule filled with sand or a similar inert material to ensure safe discharge. Secondary barrel A3 is also mounted to the carrying frame, ensuring that the counter-bullet A6 is accurately aligned to offset the recoil impulse of the primary bullet A5. The mass and speed of the counter-bullet A6 are calibrated to match the recoil impulse, providing effective recoil cancellation.

[0040] The firing mechanism includes a double-striker tip A2, positioned between the primary barrel Al and the secondary barrel A3. The double-striker tip A2 is configured to mechanically trigger both the primary bullet A5 and the counter-bullet A6 simultaneously. This mechanical synchronization ensures that both bullets are fired at the exact moment needed to achieve recoil cancellation. The firing mechanism may also comprise an electric current source configured to deliver an electric current to both the primary bullet A5 and the counter-bullet A6 simultaneously, providing an alternative method for synchronized firing.

[0041] According to some embodiments, a spring A4 is integrated into the system and is connectable on one end, to primary barrel Al, and on another end to secondary barrel A3. According to some embodiments, one of barrels Al and A3 may be fixed to the carrying frame (not shown) while the other barrel is movable along a longitudinal axis of both barrels A 1 , A3. Spring A4 may apply force to the movable barrel to force it towards the fixed barrel .

[0042] With reference to Fig. 3, when lever IB is moved, the spring may cause the moveable parts to rapidly move towards the fixed barrel forcing the double-striker tiptowards the primers of the primary bullet A5 and the counter-bullet A6, thus triggering simultaneous firing of both bullets.

[0043] Reference is now made to Fig. 4 which is a flowchart of a method of recoil-free shooting according to some embodiments of the present invention. In step 400, a primary bullet may be introduced into a chamber of a primary barrel of a recoil-free shooting device. The primary bullet may be a standard bullet, having a case filled with gunpowder, a projectile, typically made of metal or an alloy, and a primer, to ignite the gunpowder and cause the firing of the projectile. In step 410, a counter-bullet may be introduced into a chamber of the secondary barrel, directed in an opposite direction than the primary barrel. The counter-bullet may be a blank bullet, or may have instead of a projectile, an inert material, such as sand. The counter-bullet, may have a case filled with gunpowder in an amount calculated to create the desired counter recoil to ensure recoil cancellation when both bullets are fired.

[0044] In step 420, when both chambers are loaded with a bullet, a trigger unit may be activated, either remotely or condition based (e.g. time / location based) to cause a simultaneous firing of both bullets, in opposite directions.

[0045] FIG. 5 illustrates a single barrel recoil-free shooting device 500. The device may include a disposable bolt unit 510, a barrel 511, a bullet 55, a trigger unit 530, a loading lever 550, and rails 514. The disposable bolt unit 510 may be configured to house the bullet 55, which may comprise a bullet cartridge 55a and a bullet projectile 55b. The trigger unit 530 may be configured to initiate the firing sequence, while the loading lever 550 may facilitate the loading process. The rails 514 may provide structural support and alignment for the components.

[0046] The disposable bolt unit 510 may serve as the housing for the bullet 55. It may include a bolt 56 that interacts with the trigger unit 530 to enable the firing mechanism. The bolt 56 may secure the bullet 55 in place, ensuring alignment and stability during firing. The disposable bolt unit 510 may be designed for single-use, allowing for replacement after each shot.

[0047] The barrel 511 may be aligned with the disposable bolt unit 510 and may direct the bullet 55 towards the target. The chamber 511a within the barrel 511 may be where the bullet cartridge 55a is positioned before firing. The barrel 511 may be designed to withstand the forces generated during firing.

[0048] The bullet 55 may consist of a bullet cartridge 55a and a bullet projectile 55b. The bullet cartridge 55a may contain the propellant and primer necessary for firing, while the bullet projectile 55b may be the component propelled towards the target.

[0049] The trigger unit 530 may play a role in initiating the firing sequence. It may work in conjunction with the bolt 56 to release the bullet 55 from the chamber 511a. The trigger unit 530 may be designed to ensure that the firing sequence is executed smoothly.

[0050] The loading lever 550 may facilitate the loading of the bullet 55 into the chamber 511a. The lever may provide the mechanical advantage needed to position the bullet 55 within the barrel 511. The loading lever 550 may be designed for ease of use, allowing for reloading.

[0051] The rails 514 may provide structural support and alignment for the components of the shooting device 500. They may ensure that the disposable bolt unit 510, barrel 511, and other components are aligned, contributing to the overall functionality of the device. The rails 514 may be designed to withstand the forces generated during firing.

[0052] Reference is now made to FIGs. 6A, 6B and 6C which show a single barrel recoil-free shooting device 500 according to some embodiments. The device, is depicted in different loading and shooting stages. In Fig. 6A loading lever 550 is shown pushing a disposable bolt unit 510 towards a barrel 511 to introduce a bullet 55 into a chamber of barrel 511. Loading lever 550 may provide the mechanical advantage needed to position the bullet 55 within the chamber of barrel 511.

[0053] As seen in Fig. 6B, disposable bolt unit is pushed towards the barrel, until disposable bolt unit 510 engages proximal end of barrel 511, in order to ensure that the chamber is closed, to prevent bullet explosion outside the chamber.

[0054] Disposable bolt unit 510 may house the bullet 55 and may include a bolt 56 and a firing pin (not shown) that interacts with a trigger unit 530. The bolt 56 may secure the bullet 55 in place, ensuring alignment and stability during the firing process.

[0055] As illustrated in Fig. 6C, after disposable bolt unit 510 is pushed all the way towards the proximal end of barrel 511, lever 550 may be activated to engage trigger unit 530 and upon command, pull trigger unit 530 to cause the release of the firing pin (also referred to as striker), to strike a primer of the bullet in the chamber.

[0056] The disposable nature of the bolt unit 510 may allow for discharging the bolt unit 510 in a direction opposite to a firing direction along a longitudinal axis of the recoil-free shooting device 500, to mitigate the recoil impulse.

[0057] Trigger unit 530 may initiate the firing sequence. The trigger unit 530 may be activated by a controlled motor (555 in Fig. 5), which may directly control trigger unit 530 or may activate trigger unit 530 via lever 550.

[0058] FIG. 7 shows a flowchart of a method for single barrel recoil-free shooting according to some embodiments.

[0059] In step S700, a bullet and a disposable bolt unit may be loaded into the recoil-free shooting device. This step may prepare the device for the firing sequence by ensuring that the necessary components are positioned within the device.

[0060] In step S710 the bullet may be introduced into a chamber of the shooting device. This step may position the bullet within the chamber, setting the stage for the firing sequence.

[0061] In step S720, a firing pin in the bolt may be released to strike a primer at a cartridge of the bullet. This action may initiate the firing sequence by igniting the primer, which in turn ignites the propellant within the cartridge.

[0062] In step S730 a reaction is initiated in the cartridge, resulting in the firing of a projectile of the bullet in a first direction (towards a desired target) and the discharge of the disposable bolt unit and cartridge in an opposite direction. This step may illustrate the operation of the recoil-free shooting device, where the opposing forces generated by the projectile and the bolt discharge may counteract the recoil.

[0063] According to some embodiments, optional step, S740 may involve releasing and loading another disposable bolt unit and bullet from a magazine upon the discharge of the current disposable bolt unit and cartridge, loaded to the recoil-free shooting device. This step may facilitate the continuous operation of the shooting device by preparing the device for the next firing sequence.

[0064] FIG. 8A shows a disposable barrel recoil-free shooting device 800 according to some embodiments. The device may include a disposable firing unit 860, which includes a disposable barrel 811 and a disposable bolt unit 810 (similar to disposable bolt unit 510 in Figs 5, 6A, 6B and 6C). The disposable bolt unit 810 houses a firing pin and a firing pin actuator (such as a spring, an elastic band and the like), and secures a bullet within a chamberof the disposable barrel 811. This configuration allows for the discharge of the entire firing unit 860, including the disposable bolt unit 810 and disposable barrel 811.

[0065] According to some embodiments, the device further includes a support frame 895, which is designed to support the disposable firing unit 860. The support frame 895 prevents motion of firing unit 860 along at least one first axis while allowing free movement along a second axis, which is substantially perpendicular to the at least one first axis. For example, support frame 895 may prevent movement along vertical axis and along one horizontal axis while allowing movement of firing unit 860 along a second horizontal axis (e.g., a longitudinal axis of device 800) perpendicular to the two other axes. Support frame 895 may be detachably or permanently connected to a carrying platform such as a UAV. This design may allow mitigating recoil effect on the carrying platform, by enabling the firing unit to discharge in a direction opposite to the firing direction along the second axis.

[0066] A trigger unit 830 is also part of device 800, comprising a trigger 835, a control unit, and a firing pin release lever 850. The trigger unit 830 is responsible for initiating the firing sequence. The control unit, which may include a controlled motor 855, manages the operation of the trigger 835 and the firing pin release lever 850. The firing pin release lever 850 is configured to release the firing pin to strike the primer of the bullet, thereby initiating the shot. The integration of these components ensures precise control over the firing sequence, contributing to the overall effectiveness of the recoil-free shooting mechanism.

[0067] As may be understood, once a bullet is shoot, the projectile is shoot in a first direction along the second axis, while the disposable firing unit 860 is discharged in the opposite direction.

[0068] As seen with reference to Fig. 8B, lever 850 may be pushed by trigger 835, from a first position to a second position in direction d, to release the firing pin actuator, which may be for example, an elastic band or spring that when released causes the firing pin to hit the primer of the bullet secured in the chamber of disposable barrel 811, and initiate the firing sequence as described hereinabove.

[0069] Igniting the primer, which in turn ignites the propellant within the cartridge starts a reaction in the cartridge, resulting in the firing of a projectile of the bullet in a first direction (towards a desired target) and the discharge of the disposable firing unit, as seen in Fig. 8C, in an opposite direction. The opposing forces shoot the projectile through the disposable barrel 811 , in the first direction, and discharges the firing unit 860, in the opposite directions,thus mitigating the recoil effect on the support frame and to the platform that carries it, such as a UAV.

[0070] Unless explicitly stated, the method embodiments described herein are not constrained to a particular order in time or chronological sequence. Additionally, some of the described method elements may be skipped, or they may be repeated, during a sequence of operations of a method.

[0071] While certain features of the invention have been illustrated and described herein, many modifications, substitutions, changes, and equivalents will now occur to those of ordinary skill in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.

[0072] Various embodiments have been presented. Each of these embodiments may of course include features from other embodiments presented, and embodiments not specifically described may include various features described herein.

Claims

CLAIMSWhat is claimed is:

1. A device for recoil-free shooting, comprising:a primary barrel configured to fire a primary bullet in a first direction;a secondary barrel configured to fire a counter-bullet in a second direction, opposite to the first direction, the counter-bullet is configured to offset the recoil impulse of the primary projectile;a firing mechanism configured to simultaneously fire both the primary bullet in the first direction and the counter-bullet in the second direction,wherein at least one of the primary barrel and the secondary barrel are fixed to a carrying frame.

2. The device according to claim 1 further comprising a trigger unit configured to synchronize the firing of the primary bullet and counter-bullet.

3. The device according to any one of the preceding claims, wherein the firing mechanism comprises a double-striker tip, between the primary barrel and the secondary barrel, configured to trigger both the primary bullet and the counter-bullet simultaneously.

4. The device according to claim 3 wherein the double-striker tip is an electric striker, comprising an electric current source configured to deliver an electric current to both the primary bullet and the counter-bullet simultaneously.

5. The device according to claim 3 further comprising tracks to allow sliding movement of one of the primary barrel and secondary barrel, thereon, wherein one of the primary barrel and the secondary barrel is fixed to a carrying platform and the other barrel is movable along a longitudinal axis of the primary barrel and secondary barrel, to allow changing the distance between a first chamber of the primary barrel and a second chamber of the secondary barrel.

6. The device according to claim 5 wherein the trigger unit comprises a controlled motor, configured to change a state of a release lever from a first state, preventing movement of the movable barrel towards the fixed barrel, and a second state, allowing movement of the movable barrel towards the fixed barrel, and wherein, when the lever is in the second state, a spring forces the movable barrel towards the fixed barrel, forcing the moveable barrel and the double-striker tip towards the fixed barrel.

7. A method for recoil-free shooting, comprising:providing a primary barrel configured to fire a primary bullet in a first direction;providing a secondary barrel configured to fire a counter-bullet in a second direction, opposite to the first direction, the counter-bullet being configured to offset the recoil impulse of the primary bullet;loading the primary bullet into the primary barrel and the counter-bullet into the secondary barrel;synchronizing the firing of the primary bullet and the counter-bullet using a firing mechanism;simultaneously firing the primary bullet in the first direction and the counter-bullet in the second direction to achieve recoil cancellation.

8. The method according to claim 7, further comprising calibrating the mass and speed of the counter-bullet to match the recoil impulse of the primary bullet.

9. The method according to any one of claims 7 and 8, wherein the counter-bullet is a blank bullet.

10. The method according to any one of claims 7-9, further comprising calibrating the mass and speed of the counter-bullet to match the recoil impulse of the primary bullet.

11. The method according to any one of claims 7-10, wherein the firing mechanism includes a double-striker tip positioned between the primary barrel and the secondary barrel.

12. The method according to claim 11, wherein the double-striker tip is an electric striker configured to deliver an electric current to both the primary bullet and the counter-bullet simultaneously.

13. The method according to any one of claims 7-12, further comprising remotely activating the trigger unit to cause the simultaneous firing of the primary bullet and the counter-bullet.

14. The method according to any one of claims 7-12 wherein activating the trigger unit is time based, location based or any combination thereof.

15. The method according to any one of claims 7-14, further comprising using a spring mechanism to force the movable barrel towards the fixed barrel to achieve simultaneous firing.

16. A device for recoil-free shooting, comprising:a disposable firing unit comprising: a disposable barrel; a firing pin; a firing pin actuator; and a bullet, secured in a chamber of the disposable barrel;a support frame configured to support the disposable firing unit preventing motion thereof along a first axis, while allowing free movement of the firing unit along a second axis, substantially perpendicular to the first axis; anda trigger unit comprising: a trigger; a control unit; and a firing pin release lever,wherein the firing unit is dischargeable in a direction opposite to a firing direction along the second axis, in order to mitigate the recoil impulse.

17. The device according to claim 16 wherein the control unit is configured to actuate the trigger to move from a first position to a second position, thereby causing the firing pin release lever to initiate a shot.

18. The device according to claim 17 wherein the movement of the trigger causes the firing pin release lever to activate the firing pin actuator.

19. The device according to any one of claims 17 and 18, wherein the control unit comprises a controlled motor, configured to change the position of the trigger from the first position to the second position, based on a firing instruction received by the control unit.

20. The device according to any one of claims 16-19 wherein the firing pin actuator is a spring, that when released forces the firing pin towards a primer of the bullet in the chamber of the disposable barrel.

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