251results about How to "Reduce impact energy" patented technology

The present invention relates to methods for functionalizing a surface, comprising exposing a surface of a polymeric material to an atmospheric pressure glow plasma discharge, wherein exposure to the plasma discharge functionalizes the surface of the polymeric material. The present invention further provides for methods for functionalizing a polymeric material, wherein the functionalized surface has conjugated thereto bioactive agents. The present invention is also directed to compositions comprising a functionalized surface with attached bioactive agents.

A non-lethal impact munition or projectile having a nose composed of a frangible, rigid, polymer foam material such that the nose crushes upon impact with a target to disperse energy, thereby reducing the kinetic energy transferred to the target. Most preferably, the munition or projectile is provided with a cavity to retain a payload, such as marker agents, lacrimators, irritants, inflammatory agents, odorants or inert powders, such that the payload is laterally dispersed upon impact to further dissipate energy transferred to the target.

A no kill device for use in tracking and hunting wild game that can be projected from a device, such as attached to an arrow shaft and shot from a bow. An encapsulated marking media with an energy absorbing receiver and a base is attached to an arrow shaft for use with a bow.

The invention discloses a landmine-preventing seat of a vehicle. The landmine-preventing seat of the vehicle comprises a seat body, wherein the seat body is composed of a seat frame, a seat surface and an energy absorber, a transverse lower hanging rod is arranged on the side where the seat surface is connected with the seat frame, the two ends of the lower hanging rod are connected with a sliding sleeve, the sliding sleeve is connected to a main rod of the seat frame in a sleeved mode, a linear bearing is arranged in the sliding sleeve, the linear bearing, the sliding sleeve and the lower hanging rod drive the seat surface to slide up and down along the main rod, a longitudinal turn-connecting rod is connected to the middle of the lower hanging rod, the upper end of the turn-connecting rod is hung on the energy absorber, the upper end of the energy absorber is installed in the middle of an upper hanging rod, and the upper hanging rod is fixedly connected to the main rod. The landmine-preventing seat further comprises a hanging installation mechanism, wherein the hanging installation mechanism is composed of an upper installation piece or a top installation piece and a lower installation piece, the upper installation piece is fixed to the side wall of the body of the vehicle, the top installation piece is fixed to the top of the body of the vehicle, and the lower installation piece is fixed to a bottom plate of the body of the vehicle. According to the landmine-preventing seat of the vehicle, detonation impact energy transmitted to the seat is reduced through the hanging installation mechanism, energy transmitted to a human body is further reduced through the energy absorber, and personnel safety is guaranteed.

The invention belongs to the technical field of production of steel forging products used at low temperature, relating to a thermal treatment technology requiring higher low-temperature impact toughness, and particularly relating to a thermal treatment technology for improving the low-temperature impact toughness of a 25Cr2Ni4MoV steel forging. The thermal treatment technology comprises the following steps of: (1) normalizing heating; (2) normalizing cooling; (3) quenching heating; and (4) quenching cooling. The thermal treatment technology provided by the invention effectively improves the low-temperature impact toughness and prolongs the service life of a product while guaranteeing the material strength.

The invention discloses an anti-collision structure of a submerged floating tunnel. The anti-collision structure of the submerged floating tunnel is characterized in that the anti-collision structure is composed of anti-collision energy dissipation casing pipes covering the outer wall of the floating tunnel, anti-collision pipe sections capable of being disassembled and assembled independently are arranged on the axial section of the anti-collision energy dissipation casing pipes, the anti-collision pipe sections are pipe pieces arranged on the outer wall of the floating tunnel in the periphery direction in a sectioned mode, all the pipe pieces are fixedly connected to the outer wall of the floating tunnel through high-strength bolts, and the axial direction is the passage direction of the submerged floating tunnel. All the pipe pieces are in a multi-layer composite structure which comprises a polyurethane elastic panel located on the surface and an energy dissipation cushion layer located in the inner layer, a closed pressure-bearing water cavity is formed between the polyurethane elastic panel and the energy dissipation cushion layer, and the pressure-bearing water cavity is filled with pressure-bearing water. The anti-collision structure is applied to the submerged floating tunnel, is large in elasticity, resistant to corrosion and capable of bearing collision of large-tonnage ships and sufficiently absorbing impact energy.

Disclosed is a device for directional drilling including a drill head mounted on a drill column. A driving device applies an axial driving force to the drill column. A delivery device supplies a wash medium to the drill head through a channel in the drill column. The device provides for increased removal of material and drilling through hard materials by by providing a housing on the drill head having a receptacle for an axially movable piston and a piston drive for producing strikes of the piston acting on the drill head. A connecting link permits an axial movement between the drill head and the drill column. A channel for the wash medium may be sealed at least with respect to the end faces of the piston.

A firearm comprising a receiver with a bolt carrier assembly, a buttstock having a tube shaped opening adjacent to the rear of the bolt carrier assembly, a plurality of springs having similar inside and outside diameters disposed end-to-end within the tube shaped opening, and a buffer having a small diameter body disposed inside the inner diameter of the springs and having a large diameter head disposed where the foremost spring presses against the rear of the head and the front of the head presses against the rear of the bolt carrier assembly.

A sprocket for a chain drive using a roller or bushing chain has a plurality of different pitch angles, including both pitch angles larger than the standard pitch angle, and pitch angles smaller than the standard pitch angle. The number of pitch angles in the sprocket larger than the standard pitch angle is greater than the number of pitch angles in the sprocket smaller than the standard pitch angle. The sprocket teeth are integrally molded with the sprocket by sintering.

A sprocket for a chain drive using a roller or bushing chain has a plurality of different pitch angles, including both pitch angles larger than the standard pitch angle, and pitch angles smaller than the standard pitch angle. The number of pitch angles in the sprocket larger than the standard pitch angle is greater than the number of pitch angles in the sprocket smaller than the standard pitch angle.

A sun visor for a vehicle includes a shaft 10 angularly movably mounted on a roof surface within a passenger compartment of the vehicle, and a shielding plate angularly movably mounted on the shaft 10. A holder 30 and a stabilizer 70, in which the shaft 10 is angularly movably inserted, are provided at an end portion of the shielding plate, and a first projection 20A and a second projection 20B are formed on the shaft 10, and are spaced from each other in a direction of an axis of the shaft. The distance between the second projection 20B and the tubular portion 71 is larger than the distance between the first projection 20A and the bearing portion 33.

The invention discloses an energy-absorbing guide anti-collision device for a pier. The anti-collision device comprises a tubular pile group arranged beside the pier, wherein, an anti-collision buoyancy tank is sheathed outside the tubular pile group. The energy-absorbing guide anti-collision device for the pier has the advantages of simple structure, low cost and capability of absorbing energy during the collision process and guiding ship motion.

There is provided a multilayer bottle including an outermost layer and an innermost layer which are each made of a thermoplastic polyester resin, and at least one barrier layer interposed between the outermost layer and the innermost layer. The barrier layer contains at least two components including a polyamide obtained by polycondensing a diamine component containing m-xylylenediamine as a main component with a dicarboxylic acid component containing an α,ω-linear aliphatic dicarboxylic acid as a main component, and a thermoplastic resin having a lower molecular weight than that of the polyamide. The multilayer bottle hardly suffers from delamination upon impact or dropping and, therefore, is not required to have a shape with less irregularities or less bends for preventing the delamination, and further has a large freedom of design choice.

A laser-produced plasma extreme ultraviolet source has a buffer gas to slow ions down and thermalize them in a low-temperature plasma. The plasma is initially trapped in a mirror magnetic field configuration with a low magnetic field barrier to axial motion. Plasma overflows axially at each end of the mirror into magnetic cusps and is conducted by radial magnetic field lines to annular beam dumps disposed around the waist of each cusp.

The invention relates to a transverse control arm (1), having a main body (2) which comprises at least one first fastening region (3) for coupling to a vehicle frame element and at least one further fastening region (6) for coupling to a wheel carrier, wherein the main body (2) comprises at least one wheel limb (8). In order to largely prevent destruction of the joggle joint of the transverse control arm to a wheel carrier when the wheel, for example, hits a curb, it is proposed to provide a transition region (19), which is disposed between the wheel limb (8) and the further fastening region (6), and wherein the transition region (19) is designed such that a shape-change or deformation zone (21) is formed, which acts in the longitudinal direction (Y) of the wheel limb (8).

An assembly including a gas turbine engine and a nacelle in which the engine is housed, the nacelle including an air intake fairing that forms an air inlet and includes: a member for deflecting foreign objects, which together with the fairing, forms an air intake duct; and, downstream from the deflecting member, a secondary deflecting channel, and a main channel for supplying air to the engine. The air intake duct is configured to deflect at least some of the foreign objects sucked in through the air inlet towards the secondary deflecting channel. The secondary deflecting channel is shaped such that the flow velocity of the air flowing therethrough increases from upstream to downstream, the secondary channel having an outlet with an opening leading into the outer wall of the nacelle.

The invention belongs to the technical field of protective bulletproof equipment treatment, and particularly relates to a bionic bulletproof insert plate capable of changing the direction of a bullet.The bionic bulletproof insert plate capable of changing the direction of the bullet comprises an upper board made of hard ceramics and a lower board made of high-performance fibers, wherein the upperplate and the lower plate are fixedly arranged together. A plurality of first convex hulls are arranged on the side, away from the lower plate, of the upper plate at equal intervals, the upper plateis mainly used for reducing most impact energy of the bullet, the lower plate plays a role in slowly releasing energy, and meanwhile, the form of the first convex hulls of the upper plate changes theshoot angle of the bullet shot into the bulletproof insert plate; and grooves in a first layer of the upper plate and second convex hull structures in a second layer are connected together in a clamped mode, the shoot angle of the bullet shot into the bulletproof insert plate is further changed, and the impact force of the bullet invading into the vertical direction of the insert plate is reduced,so that the upper plate of the insert plate is more beneficial to reducing the impact force and speed when the bullet collide with the bulletproof insert plate, dissipation of impact energy is facilitated, and therefore the penetration depth of the bullet on the bulletproof insert plate is reduced.

A method of manufacturing a non-lethal impact projectile having a nose composed of a frangible, rigid, polymer foam material such that the nose crushes upon impact with a target to disperse energy, thereby reducing the kinetic energy transferred to the target. The projectile is provided with a cavity to retain a payload, such as marker agents, lacrimators, irritants, inflammatory agents, odorants or inert powders, such that the payload is laterally dispersed upon impact to further dissipate energy transferred to the target.

The invention relates to an omni-directional safety belt and an application method of the omni-directional safety belt. The omni-directional safety belt comprises a protective coat, a control box, a wire box, a safety rope, a clamping lock, pole encircling belts and the like. The control box and the wire box are fixedly placed on a waist belt, the safety rope is arranged inside the wire box, the clamping lock is arranged at the tail end of the safety rope, and the pole encircling belts are connected with the waist belt. The omni-directional safety belt comprises the two pole encircling belts,when a user encounters an obstacle in the pole climbing process, the situation that the two ends of one pole encircling belt are fixedly connected with the waist belt can be guaranteed, and the safetycoefficient is improved. When an operator falls, the protective coat can be inflated to expand, a stop rod can timely clamp a wire pulley, and multiple protection is provided for the operator. Meanwhile, a manager can see operation data of the operator on the computer, the operation data include the time of working at heights, the operation altitude and the situation whether the falling phenomenon happens or not, and the rescue is timely organized advantageously.