46 results about "Recoil energy" patented technology

A shooting rest supports a firearm and reduces recoil energy of the firearm. The shooting rest has a rear support and a front support for supporting the firearm and a frame connecting the rear support and the front support. The frame supports at least one weight to reduce the amount of recoil energy felt by a shooter.

A hydraulic recoil buffer assembly for a firearm having a receiver and a fixed or collapsible stock assembly including an end cylinder adapted to be secured to the pistol grip or receiver of the firearm and slidably translatable with respect to the extension tube, and a hydraulic shock absorption assembly operative to produce a hydraulic resistance to a rearward movement of the end cylinder during recoil of the firearm. The hydraulic shock absorption assembly has an orifice restricted fluid flow passage and a piston head that compresses a return spring as the end cylinder moves rearward against a recoil coil spring. The recoil buffer assembly stores a portion of the recoil energy through compression of the recoil spring and the return spring, and dissipates a portion of the recoil energy through the resistance provided by fluid flow through the orifice restricted flow passage.

A bow, preferably a crossbow, is provided herein. The bow is provided with a recoil energy dissipation system. When applied to a crossbow, the crossbow comprises a stock member including a barrel at a forward portion thereof, the barrel being configured for supporting an arrow for firing of the crossbow. A riser block assembly is provided at a forward end of the barrel, the riser block assembly supporting first and second bow limbs extending outwardly, the first and second bow limbs carrying a bowstring between the outward tips thereof, and extending transversely to the barrel. The stock member further has a trigger mechanism associated therewith selectively to hold and release the bowstring from a cocked position in which the bowstring is drawn in a direction away from the first and second bow limbs to tension the bow limbs. The recoil energy dissipation mechanism includes an associated flexible attachment arm which is secured at one end to the riser block assembly and which extends from the riser block assembly to each bow limb, and an energy-absorbing member which is secured to each flexible arm and is in contact with an associated bow limb, thereby to reduce vibrations and noise without sacrificing significant projectile velocity.

A semi-automatic or automatic rifle comprising a barrel attached to and upper receiver and including a compressible bolt carrier extension system. The compressible bolt carrier extension system includes a bolt carrier, an extension spring, two pins, and a reciprocation bolt carrier extension piece. As a whole, the compressible bolt carrier extension system makes possible the use of elongated upper and lower receivers to be used for chambering long-action or other center fire cartridges for use with AR rifles such as the M-16, and M4 etc., eliminating the need for any buffer or buffer tubes other than those commercially available. A further advantage of the compressible bolt carrier extension system is the reduction of felt recoil as the system fully loads during the recoil stroke as it pushes against the buffer absorbing additional recoil energy. The system can be incorporated into firearms using a variety of cartridges.

A shooting rest supports a firearm and reduces recoil energy of the firearm. The shooting rest has a rear support and a front support for supporting the firearm and a frame connecting the rear support and the front support. The frame supports at least one weight to reduce the amount of recoil energy felt by a shooter.

The invention relates to a portable double-coil electromagnetic riveting device which comprises a rear gun barrel and a front gun barrel. The front gun barrel slides relative to the rear gun barrel in a reciprocating mode through a damping system. A primary coil is fixedly connected into the front end of the front gun barrel. A sliding secondary coil is arranged at the front end of the front gun barrel in a sleeving mode and located beside the primary coil. The front end face of the primary coil is fixedly connected with a riveting die through an amplifier. The rear end face of the primary coil is fixedly connected with an intermediate spindle penetrating through the primary coil. The intermediate spindle slides relative to the rear gun barrel and the front gun barrel in a reciprocating mode through an elastic limit mechanism and a guide mechanism. The primary coil and the secondary coil are electrically connected. According to the double-coil self-excitation principle, currents with uniform wave forms are loaded to the coils at the same time, so that the riveting energy is increased, and the energy utilization rate is improved. Through a buffering spring, recoil energy is stored in the elastic potential energy of the buffering spring, and a one-way damper consumes energy to reduce vibration sense in the rebounding process.

A mount assembly for a semi-automatic firearm supports the weight of a firing unit (receiver, barrel and trigger) in a slide stand on or from a support structure so that a user does not have to bear any or at least a significant portion of the firearm's weight. Through a sliding interface, the firing unit is manually pushed by a user's thumb(s) to slide forward in the slide stand until a trigger actuator depresses the trigger. The trigger actuator may include a rod or a rest for a user's finger. Recoil energy from a discharged bullet pushes the firing unit rearwardly back to the starting position. The slide stand can include a convex or articulating base for variable aiming, or a fixed base for sharp-shooting.

A semi-automatic or automatic rifle comprising a barrel attached to and upper receiver and including a compressible bolt carrier extension system. The compressible bolt carrier extension system includes a bolt carrier, an extension spring, two pins, and a reciprocation bolt carrier extension piece. As a whole, the compressible bolt carrier extension system makes possible the use of elongated upper and lower receivers to be used for chambering long-action or other center fire cartridges for use with AR rifles such as the M-16, and M4 etc., eliminating the need for any buffer or buffer tubes other than those commercially available. A further advantage of the compressible bolt carrier extension system is the reduction of felt recoil as the system fully loads during the recoil stroke as it pushes against the buffer absorbing additional recoil energy. The system can be incorporated into firearms using a variety of cartridges.

A high inertia driver system for a fastening tool having an electric motor that drives a flywheel to contact a driver blade to drive a fastener into a workpiece. The high inertia driver system also has a return system which prevents the unintentional driving of a second fastener. The return system uses a return spring that controls the recoil energy of the driver blade after driving a fastener into a workpiece. The system achieves a long operational life for the fastening tool by increasing the number of return cycles of the driver blade free of a return spring failure.

The invention provides a flow-line variable-cross-section back-flushing energy dissipation fishway with a fish luring function. The flow-line variable-cross-section back-flushing energy dissipation fishway comprises bottom plates, back-flushing water outlets, a base, flow-line-type combination side walls, back-flushing waterways, a lower chamber, an underwater water outlet; the flow-line-type combination side walls are uniformly arranged along the whole fishway; the back-flushing waterways are formed in the bottom plates and are located at downstream parts which are 60 cm away from narrowest parts of the fishways defined by the left and right flow-line-type combination side walls; the lower chamber is arranged below the bottom plates; the underwater water outlet is formed in a bottom partof a tail end of the lower chamber; and each back-flushing waterway is of a curve-surface structure of which the lower part is large and the upper part is small. The flow-line variable-cross-section back-flushing energy dissipation fishway has the beneficial effects that flowing speed and flow of bottom-layer water flows of the water outlets of the fishway are increased through bottom-layer high-pressure water flows, and a fish luring effect of the water outlets in the fishway is improved; back-flushing water flows and flow-line-type fishway side walls are designed, so that water flow energy in the fishway is dissipated; the flowing state and flowing speed of water flows in the fishway are improved; and a fish passing rate of the fishway is improved.

An improved Barrett anti-armor gun that is modified to function from the open bolt with advanced primer ignition, wherein the forward momentum of the recoiling masses at the moment of firing offset a significant portion of the recoil impulse from firing. The modification reduces the recoil energy absorbed by the shooter.

A recoil pad having a pad in which the elastomer contains a plurality of pockets having one or more pocket characteristics adjustable over the entirety or portions of the pad to achieve recoil pad characteristics which can be incrementally variably matched to the recoil energy characteristics and recoil energy transfer characteristics of a particular target stock.

A spring / rod recoil assembly may be improved with Belleville springs arranged in combinations of nested and inverted stacks that absorb recoil impact energy while providing rebound energy to properly load cartridges from the magazine into the chamber. A firearm assembly may include a cylindrical spring, and guide rod—having stops at both ends—lengthwise situated within the cylindrical spring. The assembly may include a Belleville spring stack captured on the guide rod between a back-end stop and the cylindrical spring, with one or more stacks of nested springs and one or more stacks of inverted springs. The spring stack may be arranged to return some of the recoil energy produced during firing of the firearm, and decelerate slide velocities without damage to the firearm. Each spring has a diameter allowing it to fit within a back chamber where at least the back-end of the guide rod and spring are situated.

A spring / rod recoil assembly may be improved with Belleville springs arranged in combinations of nested and inverted stacks that absorb recoil impact energy while providing rebound energy to properly load cartridges from the magazine into the chamber. A firearm assembly may include a cylindrical spring, and guide rod—having stops at both ends—lengthwise situated within the cylindrical spring. The assembly may include a Belleville spring stack captured on the guide rod between a back-end stop and the cylindrical spring, with one or more stacks of nested springs and one or more stacks of inverted springs. The spring stack may be arranged to return some of the recoil energy produced during firing of the firearm, and decelerate slide velocities without damage to the firearm. Each spring has a diameter allowing it to fit within a back chamber where at least the back-end of the guide rod and spring are situated.

A recoil pad having a pad in which the elastomer contains a plurality of pockets having one or more pocket characteristics adjustable over the entirety or portions of the pad to achieve recoil pad characteristics which can be incrementally variably matched to the recoil energy characteristics and recoil energy transfer characteristics of a particular target stock.

A straight line impact absorbing striking tool for impacting an object. The striking tool may have a multi-piece construction, and may be partially filled with a flowable high-density material and / or may include a spring-loaded handle to help absorb impact recoil energy that would otherwise be undesirably transferred to the hand(s) and arm(s) of a user. At least a striking section or striking surface of such a tool may be comprised of a material that will not mar or otherwise damage an impacted target object.

A semi-automatic or automatic rifle comprising a barrel attached to and upper receiver and including a compressible bolt carrier extension system. The compressible bolt carrier extension system includes a bolt carrier, an extension spring, two pins, and a reciprocation bolt carrier extension piece. As a whole, the compressible bolt carrier extension system makes possible the use of elongated upper and lower receivers to be used for chambering long-action or other center fire cartridges for use with AR rifles such as the M-16, and M4 etc., eliminating the need for any buffer or buffer tubes other than those commercially available. A further advantage of the compressible bolt carrier extension system is the reduction of felt recoil as the system fully loads during the recoil stroke as it pushes against the buffer absorbing additional recoil energy. The system can be incorporated into firearms using a variety of cartridges.

The invention discloses a spiral rotating and rigid locking mechanism for a handgun. The spiral rotating and rigid locking mechanism is mainly characterized in that interval spiral locking and supporting teeth buckled mutually are arranged on an inner cavity of a bolt and the peripheral face of a barrel for spiral locking. Meanwhile, interval connected flap teeth buckled mutually are arranged at the front end of the inner cavity of the bolt and the peripheral face of a tubular protruding part of a barrel sleeve for locking. A spiral rotating boss is arranged at the rear end of the barrel. A spiral groove matched with the spiral rotating boss is formed in the upper portion of a connecting base and used for enabling the barrel to rotate or rotate back to be reset. The handgun adopting a locking mode is high in safety, good in speed reduction effect and beneficial to improving shooting precision and reliability and prolonging the service life, and recoil energy is adjustable.

A neutron detector system, with a detector having a pair of spaced diamond detector layers, sandwiched between outer silicon layers. In response to incident neutrons, the detector system measures pulse heights and response times, and from those measurements, calculates the carbon recoil energy and time of flight of scattered neutrons. This data is further used to calculate a “direction cone”, which represents the approximate angle of arrival of the incident neutron. These direction cones can be used to image neutron events.

A neutron detector system, with a detector having a pair of spaced diamond detector layers, sandwiched between outer silicon layers. In response to incident neutrons, the detector system measures pulse heights and response times, and from those measurements, calculates the carbon recoil energy and time of flight of scattered neutrons. This data is further used to calculate a “direction cone”, which represents the approximate angle of arrival of the incident neutron. These direction cones can be used to image neutron events.

The invention provides a crash protection efficient energy absorption island structure for an electric automobile. According to the scheme, a beam body system capable of bearing great collisions is arranged on the portion of an automobile head and combined with an energy absorption foam material, and the crash protection efficient energy absorption island structure is formed. When the automobile crashes accidently, the beam body system supports an energy absorption island to bear great impact kinetic energy of a crashing vehicle, at the cost of the collapse of the foam structure of the energyabsorption island, the kinetic energy of the opposite vehicle is greatly absorbed and consumed, passengers on the automobile are protected to be safe, meanwhile, the beam body system can further scatter and evenly share the greatly-reduced recoil of the energy absorption island on a battery shell, the situation that a battery box receives too large force and then deforms, and thus the battery boxcatches fire and explodes is avoided, and crash damage is avoided to the maximum extent.

The invention discloses a recoil and counter-recoil two-in-one buffer damping device. During use, a piston recoils, the resistance of a second elastic device is increased, the recoil energy is absorbed, a valve limits the liquid flow speed through a reserved gap between the valve and the piston at the same time, the recoil speed of the piston is decreased, the piston conducts counter recoiling under the effect of the second elastic device after the piston recoils to the limiting position, the valve is forced to move backwards through liquid flow at the moment, the reserved gap is reduced to minimum, the liquid backflow speed is limited, the counter-recoil speed of the piston is decreased, and finally, the piston returns and resets through a first elastic device; and by means of the comprehensive effect of composite springs of the second elastic device and liquid hydraulic oil, the recoil speed of the piston is decreased, the counter-recoil speed of the piston is decreased, and therefore the movement speed of the piston is decreased.

The invention relates to a weapon (1), constructed relatively simply and compactly, for shooting ammunition (2), with a barrel (3) with recoil and a braking device (12) damping the barrel recoil. According to the invention, a plastically deformable absorption body (12) is used as the braking device (12) for reducing the recoil energy. Thus, a weapon assembly for firing ammunition is provided, wherein the weapon assembly includes: (a) a weapon including a weapon barrel provided with a recoil spring that holds the weapon barrel in an initial position; and (b) a braking device that damps barrel recoil of the weapon barrel when firing ammunition, wherein the braking device is a plastically deformable absorption body.

The invention discloses a kick type vibration absorbing method. A kick type vibration absorber is arranged in the transfer position of vibration energy, and enabled to generate kick energy which is the same as and synchronous to the vibration energy to counteract the vibration energy, and therefore, the purpose of vibration absorption is achieved. A direct turn type vibration absorber is mainly composed of a positioning assembly, an upper connecting rod, a lower connecting rod and a buffer spring. A turn-around type vibration absorber is mainly composed of the positioning assembly, the upper connecting rod and the buffer spring; the upper connecting rod is inverted U-shaped; the upper end of the positioning assembly is fixed in the center position of the upper connecting rod. Due to the kick type vibration absorbing method and the kick type vibration absorber, the vibration problem of a vehicle in the running process is solved, the existing vibration absorption field is broken through, a brand new vibration absorption function is achieved, and the comfort and safety in the running process of the vehicle are further improved.

The invention relates to an interaction force measuring device of a human-gun system. The interaction force measuring device comprises a recoil force testing platform, a force sensor and a sensing system signal processor. The recoil force testing platform comprises clamping fixtures, and a spring damping mechanism is arranged between one clamping fixture and a gun. The force sensor is arranged between the recoil force testing platform and a gunstock. The motion force of the gun is collected by the force sensor and sent to the sensing system signal processor. The sensor comprises an X-direction differential capacitor unit assembly and a Y-direction differential capacitor unit assembly. The X-direction differential capacitor unit assembly and the Y-direction differential capacitor unit assembly each comprise two or more capacitor unit modules forming differential motion. The force measuring device is used for tests for analyzing recoil energy, muzzle brake efficiency and other parameters after collecting the recoil force of the gun.

In weapon shot is fired during counterrecoil. The counterrecoil energy damps the recoil energy. During recoil, the breech block is unlocked, the spent cartridge case is ejected from the barrel by the residual pressure of the powder gases and is directed by a deflector into a hole in the gun carriage. When recoiling into the aftmost position, the barrel approaches the projectile and locks it by means of the breech block. Meanwhile, the next cartridge is taken from a magazine. In the event of misfire, the barrel, continuing to counterrecoil, actuates an extractor for removing the defective projectile. A recoil imitator returns the barrel to the aftmost position, where it is loaded with a projectile in a manner similar to the post-firing recoil. The technical result is ability to load the weapon automatically before firing or to reload the weapon automatically in the event of misfire.

A combined wind turbine set comprises a wind turbine 13 arranged in the front end of a housing 14, an air suction port 15 arranged in the rear end of the housing 14 and connected, through a wind conduit 16, to an air inlet of an air source 17, an air outlet of which is connected to an air intake pipe of a recoil energy wind turbine 18 an air outlet of which is connected to a windmill or a motor 19. The combined wind turbine set is capable of using the external pressure energy, recoil energy of air current and the energy in the flow direction of air current at the same time. During the actual usage, the wind turbine 13 and recoil energy wind turbine 18 can be used for driving a generator for generation. The wind turbine 13 will not consume the mechanical energy of air source, and the recoil energy wind turbine 18 only uses the recoil energy of air current to act, while the mechanical energy from the air source has shorter extension and less local loss, thus the air current through the recoil energy wind turbine can be provided for other pneumatic mechanisms. From the above, the combined wind turbine set is obviously excellent in energy saving.