160results about "Hand grenades" patented technology

A primer composition that includes red phosphorus having an acid scavenger and a polymer thereon. The primer composition includes at least one other component that is substantially free of lead. The other component is at least one oxidizer, or at least one oxidizer and at least one of at least one secondary explosive composition and at least one energetic binder. The primer composition optionally includes at least one element having an ionic charge to ionic radius ratio of 4 or of 8, such as magnesium, zirconium, aluminum, silicon, titanium, tungsten, alloys thereof, and combinations thereof. The red phosphorus and the at least one oxidizer are present in the primer composition at approximately stoichiometric amounts. An ordnance element including the primer composition is also disclosed.

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.

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 hand grenade simulating device includes a first shell filled with a marking filler, a second shell disposed in the first shell for receiving a percussion-triggered charge, a striking member which is remote from the charge in a ready position and which is movable to strike the charge by a biasing force of a biasing member to initiate detonation for exploding the first and second shells and scattering the marking filler, a releasably retaining member which is disposed to hold the striking member in the ready position and which is manually releasable, and a delay member disposed to generate a kinetic frictional force between the striking member and the second shell such that the striking member is dragged by the frictional force against the biasing force of the biasing member when the releasably retained member is released.

A multiple output and effect grenade is provided, in which an exothermic delay column is utilized to initiate a series of primers via the application of heat to the strike faces thereof, thereby providing a reliable and relatively safe grenade to ship and store. In particular, a multiple output and effect grenade comprised of an exothermic delay column disposed within a central cavity, operable to initiate a series of primers disposed in primer cavities located within the main body of the grenade. The primer cavities may be arranged in a symmetrical or asymmetrical configuration, so as to produce a firing signature resembling an automatic weapon or random gunfire, respectively. In addition, effect charges, such as illuminants, sound agents, chemical irritants, etc., may be disposed within the primer cavities, as desired by the user.