324 results about "Muzzle" patented technology

One example device, usable in a downhole process, includes a body configured to be removably received in a corresponding recess of a perforation gun, a propellant chamber defined in the body, a projectile chamber defined in the body and positioned in the body above, and in communication with, the propellant chamber, a barrel defined in the body and positioned in the body above, and in communication with, the projectile chamber, and a muzzle defined in the body and positioned in the body above, and in communication with, the barrel.

The invention provides a surveying device and method for an internal structure of a coating, and relates to the technical field of surveying. The surveying device comprises an acquisition system used for acquiring coordinate information of muons, and the coordinate information comprises intersection point coordinates of the muons and the acquisition system; the positioning time service system is connected with the acquisition system and is used for recording the position information of the acquisition system; the control system is respectively connected with the acquisition system and the positioning time service system, and is used for obtaining a structure image of the internal structure of the to-be-detected coating according to the coordinate information and the position information, and judging the condition of the internal structure of the to-be-detected coating according to the structure image; wherein the to-be-detected coating is located at the upper part of the underground space; and the mobile carrier can move in the underground space, and the acquisition system, the positioning time service system and the control system are fixed on the mobile carrier. The surveying device can efficiently detect the condition of the internal structure of the to-be-detected coating in real time in a non-invasive mode, and the safety of the operation period and the construction period of the underground space is guaranteed.

A mount assembly for attaching a firearm accessory to a muzzle of a firearm that promotes a more secure connection. The mounting assembly includes a front collar and a rear collar that are operable to clamp the mount assembly onto the muzzle. A detent ring mounted on the front collar yieldably biased by a spring against the rear collar to resist relative rotation of the front and rear collars. The mounting assembly is constructed so that the spring force applied by the spring does not continually increase as the front and rear collars move to clamp onto the muzzle. Detent springs used to yieldably hold the front and rear collars against relative rotation can be weaker than the main spring, which further reduces unwanted forces working against clamping of the mount assembly onto the muzzle. The mount assembly is also constructed to inhibit carbon lock.

A suppressor for a multi-barrel weapon system includes an adapter baffle configured to engage the weapon system and receive the muzzles of the barrels, a plurality of extension baffles configured to be aligned with and arranged in a stack on the adapter baffle, and an endcap baffle configured to align with the extension baffles and engage the final extension baffle in the stack. A plurality of projectile apertures in each baffle aligns with the muzzles to define a plurality of parallel bullet paths. Each projectile aperture can be in fluid communication with each other projectile aperture. Each extension baffle can include a plurality of internal vanes configured to circulate propellant gasses emitted from the muzzles of each barrel within an interior space at least partially defined by the extension baffle. The adapter baffle can define an expansion space in which propellant gases emitted from each muzzle comingle during discharge of the weapon system.

A connector assembly for connecting a firearm accessory to a muzzle device for a firearm is disclosed. The connector assembly comprises a first connector part and a second connector part engaged to the first connector part by a threaded engagement. The first connector part presents a first engagement surface. At least two clamp members are configured to receive the muzzle device therebetween, the clamp members coupled to the second connector part to be axially and rotationally retained thereto. Each of the clamp members presents a second engagement surface to engage the first engagement surface. Rotation of the first connector part relative to the second connector part in a first direction moves the first connector part from a first relative axial position to a second relative axial position to engage the first engagement surface against the second engagement surfaces, to drive the clamp members radially inwards against the muzzle device in an inward radial position, to thereby clamp the muzzle device and connect the firearm accessory to the firearm.

A suppressor for a firearm is disclosed. The suppressor may have a first longitudinal axis and include a mount body for receiving a muzzle of a firearm barrel. The mount body may include a first proximal end, a first distal end spaced from the first proximal end along the first longitudinal axis, a collar adjacent to the first proximal end, and an annular stem adjacent to the first distal end. The annular stem may include a first outer side wall surface which comprises a first screw thread, and a first interior side wall surface which comprises a second screw thread. The suppressor further may include a core connected to the mount body, and a tube disposed over the core and the annular stem. The mount body, core, and tube may form a plurality of chambers for sound signature reduction of a host firearm.

A free-floating handguard for mounting onto a firearm includes a tubular polymer-based handguard body allowing passage of a barrel therethrough. The handguard body has a free-floating muzzle end and a clamping end engaging a barrel nut that secures the barrel to the firearm. A downwardly extending lobe is formed on the handguard body proximate the clamping end. The handguard body may further include either or both of a first metal insert and a second metal insert. The first metal insert may be embedded within a bottom wall of the downwardly extending lobe and releasably couple with a mounting feature on a firearm sling. The second metal insert may be embedded within the downwardly extending lobe and defines a threaded bore for receiving a threaded fastener therein. The threaded fastener and second metal insert may clamp the clamping end on the barrel nut to secure the handguard body on the firearm.

The invention discloses a shock wave overpressure field reconstruction method based on physical information, and relates to the technical field of artillery launching, and the method comprises the following steps: building a multi-scene overpressure empirical formula library comprising a Henrych formula, an M.A.Sadovskyi formula and national defense design specifications, and embedding physical prior knowledge into a neural network for training through a weighted loss function; an attention module with a channel-space cooperative enhancement capability is formed by fusing the one-dimensional efficient channel attention, the extrusion excitation network and the dimension reduction CBAM; according to shock wave propagation characteristics, a forward shock wave field subtask and a muzzle rear wave front subtask are divided, and regional prediction is achieved through dynamic characteristic routing; and optimizing network parameters by adopting a low data volume training strategy, and outputting overpressure peak field distribution. According to the method, through construction of a physical data fusion constraint mechanism and an EC-SEAM mixed attention mechanism, network physical interpretation and near field mutation feature extraction capability are improved, and dependence on labeled data is remarkably reduced.

An assembly (1) for a firearm (2). The assembly includes a muzzle device (3) configured to be attached to the firearm (2), a substantially tubular muzzle adapter (9), a substantially tubular attachment mount (15), a substantially tubular clutch collar (19), and a device (23) such as a sound suppressor. The device (23) is releasably attached to the substantially tubular attachment mount (15) by an attachment device (25). The muzzle device (3) is configured to be releasably received in the substantially tubular muzzle adapter (9). The substantially tubular muzzle adapter (9) is attached to the substantially tubular clutch collar (19) for rotation about the longitudinal central axis A together with the substantially tubular clutch collar (19) with respect to the device (23), to the muzzle device (3) and to the substantially tubular attachment mount (15) between (i) a locking position, and (ii) an unlocking position.

A muzzle device for a firearm may include a device body and a plurality of ball bearings. The device body may be configured to be removably secured to a mount body of a mount configured to be secured to a barrel of the firearm, the mount body including a plurality of lugs each extending radially outward relative to a longitudinal axis of the mount and including a stop and a detent. The device body may include a plurality of protrusions each extending radially inward relative to a longitudinal axis of the muzzle device and configured to engage the stop of a respective lug of the mount to prevent rotation of the muzzle device relative to the mount in a first direction. The ball bearings each may be configured to move relative to the device body and to engage the detent of a respective lug of the mount to inhibit rotation of the muzzle device relative to the mount in a second direction opposite the first direction.

A muzzle device for a firearm may include a device body and a plurality of ball bearings. The device body may be configured to be removably secured to a mount body of a mount configured to be secured to a barrel of the firearm, the mount body including a plurality of lugs each extending radially outward relative to a longitudinal axis of the mount and including a stop and a detent. The device body may include a plurality of protrusions each extending radially inward relative to a longitudinal axis of the muzzle device and configured to engage the stop of a respective lug of the mount to prevent rotation of the muzzle device relative to the mount in a first direction. The ball bearings each may be configured to move relative to the device body and to engage the detent of a respective lug of the mount to inhibit rotation of the muzzle device relative to the mount in a second direction opposite the first direction.

A suppressor for a multi-barrel weapon system includes an aft end configured to receive a muzzle of each barrel of the plurality of barrels, a forward end defining a plurality of projectile apertures configured to align with the plurality of barrels when the muzzle of each barrel is received in the aft end, and a sidewall extending from the aft end to the forward end, the sidewall at least partially defining a single continuous interior chamber in which propellant gases emitted from the muzzle of each barrel comingle and circulate. The suppressor can include a plurality of baffles. A plurality of projectile apertures in each baffle can align with the muzzles to define a plurality of parallel bullet paths. Each projectile aperture is in fluid communication with each other projectile aperture.

The present disclosure provides systems and techniques for an attachment that can be fastened to a gun. The attachment may include a top surface having a longitudinal axis and an aiming sight that is parallel with the longitudinal axis, a front surface having a latitudinal axis that is perpendicular to the longitudinal axis, the front surface including a muzzle aperture, a left surface, a right surface, and a fastening system. The fastening system may include a first mounting aperture of the left surface, a second mounting aperture of the right surface, and a locking pin capable of being positioned in the first mounting aperture and in the second mounting aperture such that the locking pin fastens the attachment to the gun. The attachment may be fastened to the gun such that the longitudinal axis is parallel with a longitudinal bore axis of the gun.

Disclosed is a recoil pad assembly for the stock of a rifle (200), which is used in all kinds of rifles, including rifles or smoothbore rifles, air rifles and firearms rifles and non-firearms rifles, which are fired by resting the rifle on the shoulder. The assembly includes a recoil pad which can be attached to and detached from the rear end of the stock and allows the stock to be set on the shoulder; and a silicone air cushion attached to and detached from the stock together with the recoil pad on the front side joining the recoil pad with the stock, which contains air and reduces the load on the user's shoulder by reducing the impact during firing and prevents the rifle from muzzle climb.

The utility model relates to a powder storage bin, and aims to provide a powder anti-blocking discharging device which enables powder to be smoothly discharged from a hopper to a discharging port so as to solve the problem of material blocking of a large powder storage bin and guarantee normal production. According to the technical scheme, the powder anti-blocking discharging device comprises an air cannon and a plurality of vibrators; characterized in that; the powder anti-blocking discharging device further comprises a hopper-shaped vibration hopper installed at the bottom of the powder storage bin, the air cannon and the vibrators are all installed outside the vibration hopper, and a muzzle of the air cannon further sequentially penetrates through the vibration hopper and the wall of the powder storage bin to extend into the powder storage bin in an overhanging mode so as to be used for eliminating the blocking phenomenon of the powder storage bin.

A suppressor assembly for a firearm having a receiver and a barrel connected to the receiver which includes a tube adapted to be coupled to the receiver and which serves as the handguard for the firearm. The tube circumferentially encloses and extends along the barrel and defines ports arranged proximate to the receiver and apertures arranged near the muzzle end. Near the ports is a modulator that adjusts the openings of the ports. Coupled to the end of the tube is noise suppression tube wherein orifices to vent propellant gases and a baffle assembly is disposed. Propellant gases expand within the expansion volume and exit the suppressor through the ports, the apertures, the orifices and through the opening for the bullet in the end cap.

A foldable break barrel air gun that is movable from a stowed configuration to a use configuration. The foldable break barrel air gun includes a stock having a butt stock pivotally connected to a forestock in which a firing engine is located. A barrel having a muzzle end and a breech end is provided, with the barrel being pivotally connected to the forestock proximate the breech end. A cocking linkage has a first portion that is pivotally connected to the barrel and a second portion that is connected and / or engaged with the firing engine by a releasable linkage connection. With the releasable linkage connection released, the butt stock is foldable relative to the forestock, and the barrel is foldable relative to the forestock such that the butt stock is arranged in proximity to and preferably attachable to the barrel proximate to the muzzle end in the stowed configuration.

The invention discloses a projectile pose measuring and calculating system based on a multilevel feature fusion neural network and visual three-dimensional model fitting, which captures a high-speed projectile flight image on the basis of a deep learning technology, realizes the detection of a target image through a target detection technology based on the multilevel feature fusion of the neural network, and realizes the measurement and calculation of the projectile pose. And on the basis, a posture reconstruction resolving technology based on monocular vision and a projectile model is used for realizing the resolving work of the projectile state, so that the accurate measurement of the projectile muzzle state is realized, the test range is not less than 10 degrees, and the test error is less than 5%. According to the method, the detection precision is improved, the bullet muzzle state parameters can be accurately measured, solid data support is provided for artillery performance evaluation and improvement, and the method has higher anti-interference performance.

The invention discloses a nail gun, and belongs to the technical field of power tools. The nail gun comprises a gun body, a firing pin and a torsion spring, the firing pin is movably arranged in the gun body, a torsion spring body of the torsion spring is rotatably connected with the gun body, a first torsion arm of the torsion spring is connected with the firing pin, a second torsion arm of the torsion spring is connected with the gun body, and the torsion spring is used for driving the firing pin to move towards a muzzle of the gun body. According to the scheme, the torsional spring is adopted as a driving part to drive the firing pin to move towards the muzzle of the gun body to achieve the nail striking effect, the structure is simple, the torsional spring is low in cost and convenient to disassemble, assemble and replace, the use cost of the nail gun is reduced, and due to the fact that the torsional spring has the vibration absorbing and striking effects, the service life of the nail gun is prolonged. And in the process of driving the firing pin to move, the effects of buffering impact and reducing vibration can be achieved, the problem of vibration is avoided, and therefore the use experience feeling of the nail gun can be improved.

The invention provides a fire-fighting unmanned aerial vehicle attitude control system and a control method thereof, and relates to the technical field of fire-fighting unmanned aerial vehicle attitude control. A sensing terminal, a measuring terminal, a lateral rotor wing and a control terminal are arranged on the unmanned aerial vehicle; determining a target spraying position of the fire extinguishing medium based on the sensing terminal; the medium flow of a fire extinguishing medium in the fire gun and the heat convection vector force in the environment horizontal plane are measured based on the measuring terminal; reverse thrust is provided in the spraying direction of the fire extinguishing medium based on the lateral rotor wings; the control terminal determines the current muzzle position of the fire gun on the horizontal plane according to the medium flow and the heat convection vector force; determining the spraying position deviation of the fire gun according to the current muzzle position and the target spraying position; and the magnitude and direction of reverse thrust provided by the lateral rotor wings are controlled according to the jetting position deviation, so that the muzzle position of the fire gun when the fire gun executes a fire extinguishing task is corrected. The fire extinguishing efficiency of a fire scene and the completion quality of a fire extinguishing task are improved.

The present disclosure provides systems and techniques for an attachment that can be fastened to a gun. The attachment may include a top surface having a longitudinal axis and an aiming sight that is parallel with the longitudinal axis, a front surface having a latitudinal axis that is perpendicular to the longitudinal axis, the front surface including a muzzle aperture, a left surface, a right surface, and a fastening system. The fastening system may include a first mounting aperture of the left surface, a second mounting aperture of the right surface, and a locking pin capable of being positioned in the first mounting aperture and in the second mounting aperture such that the locking pin fastens the attachment to the gun. The attachment may be fastened to the gun such that the longitudinal axis is parallel with a longitudinal bore axis of the gun.

A sound suppressor for a firearm is disclosed. The sound suppressor includes a tubular casing adapted to be attached at the muzzle of a firearm, a distal end including an end cap with an exit orifice adapted to permit the passage of a projectile; a core structure defining at least one flow disruptor adapted to disrupt flow of propellant gases leaving said muzzle, said core structure furthermore defining a projectile passageway adapted to be aligned with a bore of said firearm and adapted to permit the passage of a projectile from said muzzle to said exit orifice; a plurality of water drainage openings passing through said tubular casing on an underside thereof, and a shutter including a plurality of through-holes, said shutter being slidably mounted on said tubular casing and displaceable from a first position and a second position.

A firearm suppression system includes a housing, a muzzle adapter, an end cap, and a core. The housing includes a first aperture at a first end and a second aperture at a second end. An inner compartment may be interposed between the first aperture and the second aperture. The inner compartment may be configured to receive the core. The muzzle adapter may be threadably coupled near the first end of the housing, and the end cap may be threadably coupled to the second end of the housing. The core may be removably attachable to the housing and positioned within the inner compartment of the housing. Between an outer surface of the core and the inner surface of the housing may be a channel that equalizes pressure. The outer surface of the core may comprise a plurality of apertures that lead to baffles.

The invention discloses a gunshot direction finding method based on rising edge arrival time estimation in a multipath propagation environment, and the method comprises the steps: carrying out the filtering of microphone array data received in the multipath environment, and carrying out the direction finding of a gunshot trajectory shock wave signal and a muzzle wave signal in a high-frequency band and a low-frequency band respectively; performing pulse waveform rising edge detection on the gunshot signal pulse to obtain arrival time estimation of the initial rising edge of the direct wave of the gunshot signal of each array element; calculating the difference value of the arrival time of the direct wave of the gunshot signal of each array element relative to the reference array element to obtain a microphone array arrival time difference vector; and according to the time difference of arrival vector of the microphone array and the formation coefficient matrix, a direction vector of the direct wave of the gunshot signal is solved by adopting a least square method, and then angle estimation of the direction of the direct wave of the gunshot signal is obtained. According to the method, the multipath interference resistance of the time difference of arrival estimation method in gunshot direction finding calculation is greatly improved, and the gunshot source positioning accuracy in a multipath environment is improved.

A mount for mounting a firearm sound suppressor or silencer to a firearm muzzle or muzzle device operates by using primary mounting lugs on the suppressor which engage sockets on the muzzle device. The primary lugs prevent the suppressor from axially moving with respect to the muzzle device, thus causing them to be fixed together as a unitary device. Angled bearing faces on the muzzle device and the sound suppressor are pressed against each other by rotating the sound suppressor on threads which drive the angled bearing faces together, thus tightening the primary lugs within their sockets. Backup lugs on the silencer engage an annular groove on the muzzle device to retain the silencer on the firearm to which it is mounted in case of failure of the primary lugs. Rapid attachment and detachment are supported by these structures.

A muzzle loading system includes a ramrod and a muzzle loader. The ramrod includes ramrod body having a ramrod proximal end and a ramrod distal end. The muzzle loader receives the ramrod proximal end, applies a loading pressure to the ramrod, and provides audible and / or haptic feedback in response to the applied loading pressure reaching a target loading pressure.

The invention relates to a nail passage mechanism used for a nail gun. The nail passage mechanism comprises a muzzle member having a nail hole, a muzzle cover disposed above the muzzle member, a nail passing channel formed between the muzzle member and the muzzle cover permitting a striking member to pass therethrough for striking a nail. The muzzle cover comprises a clearance groove permitting more than one tooth blocks located on the striking member to pass therethrough, and the clearance groove locates on a first side of the nail passing channel.

The present invention provides a quick coupling muzzle booster and suppressor adaptor system having a quick coupling muzzle booster and suppressor adaptor and direct rifle mount that can be coupled to a suppressor and mounted on a lock breech pistol or pistol caliber carbine. The system according to the invention provides wherein the quick coupling muzzle booster includes a booster slide with an external quick connect for coupling to the suppressor adaptor, and wherein the external quick connect of the booster slide includes a plurality of lugs corresponding to a proximal end of a housing of the suppressor coupling, and wherein the muzzle booster includes a booster piston that is coupled to a pistol. The system according to the invention may provide wherein the muzzle booster includes a booster piston nut with a spring, wherein the booster piston nut is coupled to the booster piston.

The traditional artillery is not long, the root reason is that the utilization rate of a gun barrel is too low, when a shell moves to a muzzle, the bore pressure is attenuated to be very small and is more than 52 times of the diameter, and the effect of lengthening the gun barrel is not good. The problem is effectively solved. The key point is that the gas storage chamber is additionally arranged between the powder chamber and the breech, the volume of the gas storage chamber is equal to or larger than that of the gun barrel, the utilization rate of the gun barrel can reach 80% from above, and the range is increased by several times to dozens of times. According to the first embodiment, the volume of a gas storage chamber is 0.5703.3 m, the volume of a 1.5-time gun barrel is 0.3802.3 m, the length of the gun barrel is 20.15 m, the utilization rate of the gun barrel is 80%, the maximum chamber pressure is 273 MPa, 52 kg of guided projectiles are launched, the maximum overload is 10,000, the minimum overload is 6 thousand G, the average overload is 8 thousand G, and according to V2 = 2 as, the muzzle speed V = 1778 m / s, and the firing range reaches 130 km and is far beyond 20 km of a PLz-05 artillery. 150 to 190 kilograms of propellant powder is needed.

A firearm or firearm retrofit assembly may include a compensation assembly to receive gas expelled from a muzzle of a barrel or an egress in a length of the barrel. The compensation assembly may include one or more gas flow-directing sections to tune the flow of gas through the compensation assembly, which may reduce recoil. Other embodiments may be disclosed and / or claimed.