160results about "Hand grenades" patented technology

A reusable paint dispersing grenade of the type employed in paint ball games is constructed in such a manner as to avoid the use of any combustible materials, and also to avoid the requirement for access to a source of compressed air for operation. The paint grenade of the invention has a hollow, fluid-tight casing defining an enclosed cavity that is divided internally into a marking paint chamber, a first propellant component chamber, and a second propellant component chamber. The propellant component chambers are each filled separately with propellant components, but remain isolated from each other until the paint dispersing grenade is used. At that time the propellant components chemically react with each other in a noncombustible manner to produce a quantity of gas under pressure. The expanding gas produced by the chemical reaction builds to a pressure sufficient to break a paint seal in the casing or a gas seal initially separating the gas from the paint, whereupon the gas under pressure forces the paint out through one or more paint expulsion ports. The device may be recharged with marking paint and the chemically reactive propellant components any number of times.

Projectile apparatus is provided employing light and sound that may be dispersed over a large area with high intensity to produce a non-lethal, visible and audible countermeasure to temporarily blind and / or disorient one or multiple potential adversaries. The apparatus is suitable for use in tactical scenarios by military, police, and special operations personnel. The apparatus is also suitable for use in training operations for military, police, and special operations personnel. For amusement or recreation, the apparatus may be used in simulated warfare or in games such as paintball.

A safer flash-bang grenade that yields the state of the art sound intensity, plus a brighter, more intense flash of the order of 13.5 million candela—which effect is due to a combination of a particularly efficacious pyrotechnic formulation and a particular reaction chamber design that momentarily retains or holds-back the reaction escape until the desired intensity is reached. The particular pyrotechnic formulation is based upon a strontium nitrate oxidizer in conjunction with an aluminum powder metallic fuel and a sulfur non-metallic fuel. The particular reaction chamber design includes a relatively rigid, non-fragmenting charge holder, with a slip-fit thin aluminum sleeve internal thereof and a shrink fit or other sealed sleeve external thereof.

The present invention overcomes the limitations of the prior art by providing a stun grenade device with an elongated cylindrical body having a cylindrical sidewall and opposed top and bottom end faces. The body includes a delay chamber containing a delay material, and has a number of flash charge chambers each containing a quantity of flash charge material. The body defines a number of ignition passages, each communicating from a respective flash charge chamber to the delay chamber. Each flash charge chamber has at least one exhaust aperture penetrating the top or bottom end face. Each flash charge chamber may be formed in an elongated tubular sleeve inset in a frame of a different material.

A fuze explosive train device for detonating a munition that uses a stab firing pin within a pressure cartridge, with the stab firing pin located between a gas generator and a stab detonator. The firing pin is capable of transferring an energy from the gas generator into the stab detonator in a manner that initiates the stab detonator to a high order explosive reaction. A method of initiating a stab detonator using a stab firing pin also is disclosed.

The present invention is an improved grenade which launches a plurality of pellet projectiles. The grenade includes a housing containing at least one spiral launch tube, said launch tube having a breech end and a muzzle end. A plurality of projectiles are loaded in the launch tube between the breech and muzzle ends. The grenade includes a gas reservoir for storing a compressed gas coupled to the breech end of the launch tube. A valve is interposed between the reservoir and the breech end of the launch tube for controlling the flow of compressed gas from the reservoir to the breech end of the launch tube. The valve is moveable between a closed state and an open state wherein said compressed gas enters the breech end of the launch tube to propel the projectiles from the muzzle end, the valve being biased towards its open state. The grenade also includes a trigger mechanism coupled to the valve, the trigger mechanism operating between a locked state wherein the trigger mechanism holds the valve in its closed state and an unlocked state wherein the valve is free to move into its open state.

A hot gas deployment device for safely deploying a “hot” tear-gas canister to flush out barricaded law-resisters. The device includes an internal chamber for inserting the tear-gas canister therein, securing means to secure the canister in place during deployment, and a handle for easy operation. The chamber safely contains the hot-gases produced by the tear-gas canister to reduce the risk of causing a fire in the barricaded space. Tear-gas release orifices on the chamber's housing release the tear-gas from the chamber. One embodiment of the device includes a hollow spear for releasing the tear-gas through walls and other obstructions. Another embodiment of the device is suitable for hurling with a tear-gas grenade launcher.

A hand grenade simulator includes a hand grenade simulator housing configured to simulate the appearance of a hand grenade. The hand grenade simulator also includes a trigger mechanism coupled to the hand grenade simulator housing. The hand grenade simulator further includes a timer coupled to the trigger mechanism. The hand grenade simulator additionally includes at least one transmitter coupled to the timer. The transmitter is operable to transmit the first signal simulating a hand grenade blast pattern a first amount of time after activation of the trigger mechanism.

An explosive training device is described and which includes a main body defining an internal cavity, and wherein a plurality of elongated channels extend through the main body and communicate with the internal cavity; and an explosive charge is received within the cavity of the main body, and which, when detonated, produces sound and visibly discernible light, and wherein a preponderance of the visibly discernible light, and sound produced by the detonation of the explosive charge escapes from the main body through the plurality of elongated channels.

A diversion grenade (200) comprising: a transparent body (102) in which is located one or more charges of flash material (104); an internal power supply (114); a control circuit (126) that is responsive to one or more inputs, the control circuit (126) producing one or more output signals; and an external user operated trigger (110) for initiating a user input for activating the grenade (200). The grenade (200) may also include tracer lights (122) and sound emitters (201).

A diversion device capable of generating a disorientating flash and a disorientating sound without an explosion has a housing with a cavity containing an inert gas, a piston and a powder. The powder creates the flash via ignition after exiting the device. The device also includes a mechanism configured to ensure the powder encompasses the device upon exit and does is not dispersed in a substantially horizontal plane. In addition, the device may include devices capable of creating a disorientating sound as the inert gas escapes the device.

A projectile includes a body, a penetrator disposed at least partially within the body for penetrating a target or barrier, and means for propelling the penetrator from the body. A method includes directing a projectile toward a target or barrier and propelling a penetrator from within a body of the projectile. An apparatus for propelling a penetrator from a projectile includes a high energy power source and means for guiding the penetrator from the projectile.

A diversion device capable of generating a disorientating flash and a disorientating sound without an explosion has a housing with a cavity containing an inert gas, a piston and a powder. The powder creates the flash via ignition after exiting the device. The device also includes a mechanism configured to ensure the powder encompasses the device upon exit and does is not dispersed in a substantially horizontal plane. In addition, the device may include devices capable of creating a disorientating sound as the inert gas escapes the device.

An enhanced grenade exhibiting improved insensitive munitions (IM) characteristics while providing improved lethality or non-lethality as desired.

Passive venting apparatus and method for a rocket motor or ordnance device containing propellant or explosive material enclosed in a case, which presents an explosion hazard when subjected to external heat. A combustible strip is secured to the exterior surface of the case and is constructed to burn and generate sufficient heat when exposed to predetermined external heat to weaken the adjacent portion of the case and effect rupture of the case to vent interior gases therein prior to autoignition of the propellant or explosive.

Disclosed is an irritation grenade (1) comprising a receptacle (2) with at least one compartment (12) within which an effective charge (3) is accommodated and which ends in one respective discharge port (21, 22) on opposite sides of the receptacle (2) while being locked by means of a closure (15). A rocker-arm type igniter (4) is provided to ignite the effective charges. The combustion gases of the effective charges (3) are deflected in part by parts of the rocker-arm igniter (4) such that the irritation grenade is displaced when the effective charges (3) are ignited. In order to prevent this from happening, the cross section of the discharge ports (21, 22) of the compartments (12) is embodied smaller on the side opposite the rocker-arm igniter (4) than the cross section of the discharge ports (21) on the side of the rocker-arm igniter (4) such that recoil forces which are generated when the effective charges (3) are burned and act upon the irritation grenade (1) are substantially identical on both opposite sides.

A detonator for a hand grenade fuze comprises a detonator case; a slider that is transversely reciprocable in the detonator case from an unarmed position to an armed position, the slider including a longitudinal through-hole filled with a primary explosive; a spring that biases the slider to the unarmed position; an arming mechanism attached to the slider, the arming mechanism comprising a shape memory alloy; an explosive lead disposed below the slider; and a booster charge disposed below the explosive lead.

A safety fuze includes a magneto striker generator (MSG) as its a power generation source. The MSG provides energy to energize an electronic unit and a safety and arming device. The safety fuze allows safety and arming of military hand grenades, with a fully out-of-line explosive initiator and an integrated power generation means, for improving safety and performance. The MSG includes a striker and a receiving bobbin that houses a conductive coil. The striker comprises a permanent magnet that is mounted on a pivot mechanism for allowing a rotational displacement of the permanent magnet, into the bobbin, in order to generate an electrical current. As the permanent magnet is being inserted inside the bobbin, the magnetic flux change induces an electric current in the coil, creating the necessary energy for the fuze operation.

The present invention is an improved grenade which launches a plurality of pellet projectiles. The grenade includes a housing containing at least one spiral launch tube, said launch tube having a breech end and a muzzle end. A plurality of projectiles are loaded in the launch tube between the breech and muzzle ends. The grenade includes a gas reservoir for storing a compressed gas coupled to the breech end of the launch tube. A valve is interposed between the reservoir and the breech end of the launch tube for controlling the flow of compressed gas from the reservoir to the breech end of the launch tube. The valve is moveable between a closed state and an open state wherein said compressed gas enters the breech end of the launch tube to propel the projectiles from the muzzle end, the valve being biased towards its open state. The grenade also includes a trigger mechanism coupled to the valve, the trigger mechanism operating between a locked state wherein the trigger mechanism holds the valve in its closed state and an unlocked state wherein the valve is free to move into its open state.

A rubber fragmentation grenade has a body containing an explosive charge, a fuse assembly connected to the body, an elastomeric outer layer at least partly encompassing the body, and the outer layer being scored to provide a plurality of segments. The segments may be rectangular. Each segment may have a thickness, and may have a width greater than the thickness. The thickness may be at least one-third of the width. The body may include a cylindrical portion, and the outer layer may be a cylindrical sleeve encompassing the cylindrical portion. The segments may include a ring of segments. Each ring may include six segments. The explosive charge may be an elongated shape defining a charge axis and having opposed ends, the elastomeric outer layer being a cylindrical form being concentric with the charge. The elastomeric outer layer may extend beyond the ends of the charge.

The present invention relates to an igniter mechanism for a toy hand grenade which comprises a pull string ignition assembly, a housing that encases the pull string ignition assembly and a stopper that is located in the housing. The igniter mechanism may meet the requirements of safety, reliability and low production cost.

Passive venting apparatus and method for a rocket motor or ordnance device containing propellant or explosive material enclosed in a case, which presents an explosion hazard when subjected to external heat. A combustible strip is secured to the exterior surface of the case and is constructed to burn and generate sufficient heat when exposed to predetermined external heat to weaken the adjacent portion of the case and effect rupture of the case to vent interior gases therein prior to autoignition of the propellant or explosive.

A modified 40 mm grenade round designed to breach doors without throwing a significant amount of shrapnel into a building's interior or back toward the shooter. The modified round includes a forward extension on the ogive. The extension is rigidly connected to a thrust column which transmits an impact load directly from the ogive's nose cap to the striker on the fuse assembly. This configuration detonates the explosive charge within the projectile while the explosive is still well outside the door. This early detonation throws a pressure wave again the door's exterior, forcing the door inward.

A training grenade includes a main body, a cartridge chamber removably connected to the main body, a firing pin mechanism for actuating the cartridge and a toggle for operating the firing pin mechanism, the toggle being contained within the main body.

The invention is an aerosol search and rescue (SAR) grenade. A smoke signal is produced that is comparable to the smoke signal produced by a pyrotechnic grenade. An aspirating provides a propellant gas / air mixture to a reservoir of smoke material. A container configuration and gravity operated valve provide for a smoke plume only in the upward direction. The smoke grenade is useful in life rafts. It is also useful in inland areas posing a risk of fire.

A grenade is defined by a body made from a rubberized material, the body including a hollow interior and a stem section. A cap is releasably secured to the stem section, the cap retaining a fuze assembly which is threadingly engaged therewith. The grenade is equipped with an ejection charge that causes said cap and said fuze assembly to be separated from said body prior to detonation of the grenade. A hydrophobic sealing layer applied to the exterior of the stem section and cap provides a watertight seal relative to the interior of the grenade, but without substantially interfering with the ejection of said cap and fuze assembly.

A modified 40 mm grenade round designed to breach doors without throwing a substantial amount of shrapnel into a building's interior. The modified round includes a standoff device located on its forward end. The standoff device detonates the explosive charge within the projectile before the nose of the projectile actually strikes the target. This early detonation throws a pressure wave again the door's exterior, forcing the door inward. Shrapnel produced by the detonation remains primarily outside the door. Thus, the modified projectile is able to blow open a door without throwing a significant amount of shrapnel into a building's interior.