Abstract: A very high brisance metal powder explosive is created by including a multitude of hollow aluminum/aluminum oxide micro-particle shells deposited within a high explosive composition matrix. The interior of such micro-particle shells may contain air, nitrogen, other gases, combinations thereof, or possibly even be a vacuum. The invention might be used on warheads that are fragmentation warheads, explosively formed penetrators, air blast warheads, shaped charge jets of shaped charge warheads, or other high explosive-driven devices.

Abstract: A selectable yield fragmentation grenade is provided with a feature for relatively easily setting the output of the grenade to a higher or to a lower yield lethality output of fragments. An operator can selectively inflate the grenade by various provisions, and such inflation lowers the grenade's lethality yield output.

Abstract: A flexible warhead which can be used for a bunker defeat mechanism. The warhead has a polysterene membrane embedded with lethal tungsten alloy fragments, contains an explosive gel, and also has an attached time delay fuze. The warhead is folded and stored in a case. In use, the warhead is expelled from the case by a propellant and the membrane is exploded with its fragments proximate to impacting a target, after the time delay.

Abstract: A wall breaching explosive fragmentation ammunition having a tungsten alloy nose cap with ceramic cone nose which make possible penetration into a hardened target with survivability of the warhead. The ammunition employs a unitary construction with fuze completely within the projectile's shell case. The ammunition has an external plastic rotating band which also encloses an induction antenna. The antenna may signal the fuze on a wire, through a hole in the shell case. The fuze signals may be fed through a gun barrel, then picked up on the antenna. The ammunition also employs a controlled pattern fragmentation mechanism incorporating a patterned plastic liner.

Abstract: A water air-bubble fragment recovery test apparatus that facilitates accurate assessment of fragmentation characteristics and lethality that are normally detonated in air. An airtight, waterproof plastic container encloses a test warhead; the plastic container may then also be filled with a gas or just with air. The container is then embedded in a water-gas-bubble mixture found in a water tank, for the warhead to be detonated therein, and the fragments to then be later recovered.

Abstract: A fragmentation warhead includes a cylindrical body, and an explosive charge disposed within the innermost part of the warhead body comprised of slidable positionable explosives, their times of detonation controllable by an operator. The apparatus can produce numbers and sizes of fragments ranging from relatively large to relatively small.

Abstract: A fragmenting warhead is provided having an outer cylindrically shaped hollow steel shell which can be selectively detonated into different fragment types and sizes. The warhead has a plastic liner within said shell, and a core of explosive. There are a number of insulated wire grids of high electrical resistance which will heat when an electrical current is provided thereto located in intimate thermal contact with the explosive, each grid corresponding to a fragment type and size for selection by providing electrical current to that selected grid. Heat flux is caused when an electrical current runs through a particular grid and this selectively melts explosive in the near vicinity of such grid, then a detonation of the explosive core will result in a fragmentation type and pattern corresponding to that grid type and pattern. An ignition propellant train may also be selectively associated with wires on the grids to further selectively detonate the explosive.

Abstract: A fragmentation warhead includes a cylindrical fragmenting body, a pair of concentric cylindrical liners within, made of plastic, and an explosive charge disposed within the innermost liner. In one embodiment, one liner provides various “legs” of liner material and the other liner provides various open receptacle areas, into which such legs may come to rest when the liners are slid together and/or rotated relative to one another. Various recessed and/or raised areas of liner material can thus be randomly created by such adjustments, which lead to select fragmentation of the warhead upon detonation.

Abstract: The invention describes a wall breaching explosive fragmentation ammunition and further a warhead having means for efficiently penetrating concrete and masonry walls, effectively delivering an explosive fragmentation case payload with minimum structural damage to the ammunition's projectile body. The effective wall breaching is achieved using an ogive-shaped, high strength, light weight boron carbide ceramic nose cone cap disposed adjacent to a tungsten alloy nose insert, at the fore of the ammunition. The projectile body is generally cylindrically shaped, preferably made of steel or aluminum to withstand expected forces in the launch environment. The ogive-shaped nose cone may be secured circumferentially to the projectile body with a rubber O-ring to ensure a tight seal.

Abstract: A fragmentation warhead includes a cylindrical body, a pair of concentric cylindrical liners made of plastic, and an explosive charge disposed within the innermost liner. The innermost liner includes patterns formed thereon of recessed areas and solid liner elements. The outermost liner's interior surface includes patterns formed thereon of raised areas and solid liner elements. The outermost cylindrical liner is arranged to be adjustable relative to the innermost liner through rotation or translation. The explosive charge is disposed adjacent to the interior of the innermost cylindrical liner. Upon detonation of the explosive charge and because of the random dampening and temporal delay in transmitting the detonation energy through various locations of the randomly aligned cylindrical liners, the warhead body is caused to shear and break into fragments with different sizes.

Abstract: A fragmentation warhead includes a cylindrical body, and an explosive charge disposed within the innermost part of the warhead body. Upon detonation of the explosive charge, the warhead body is ultimately caused to shear and break into fragments with controlled sizes, shapes. Metallurgical composition of the warhead body can be used to influence the size of fragments ultimately generated when the warhead breaks apart through detonation, since the size and positioning of fragments in the warhead body is preselected. Fabrication of explosive fragmentation ammunition with preformed fragment tungsten alloy fragmenting shells of complex shapes and small and medium calibers is provided in this invention. According to an embodiment of this invention, fabrication begins with “green” tungsten alloy fragment pellets of a given, full strength, enwrapped in a green lower strength matrix alloy.

Abstract: A single multipurpose ammunition projectile/warhead is provided, which has the capability of clearing a variety of different types of hardened targets. The single projectile of this invention may be used for breaching steel reinforced concrete walls; may be used against light armor targets; may be used for defeating bunkers; and may also be used for antipersonnel applications. Huge savings in time, money, inventory and logistics are realized through utilizing only this one multipurpose ammunition against all these types of targets. This multipurpose projectile, among other superb capabilities, is able to puncture an eight inch double steel reinforced concrete wall timed to then have its warhead explode into fragments. This allows fragmentation in a more effective, nearly ideal direction. The projectile warhead of made of extremely thick walled 300M steel; with the projectile center of gravity to be located equidistant between a pair of bourrelets, for increased stability.

Abstract: A fragmentation warhead includes a cylindrical body, and an explosive charge disposed within the innermost part of the warhead body. Upon detonation of the explosive charge, the warhead body is ultimately caused to shear and break into fragments with controlled sizes, shapes. This invention enables target-adaptable fragmentation output based selectively controlling the size of preformed fragments ejected. Preformed tungsten alloy fragments of a first “small” size “A” are sintered to be joined into a plurality of larger size fragments “B”, using a tungsten alloy matrix. The B fragments are then joined into a desired shell shape and thickness and sintered into a fragmenting shell body using a different tungsten alloy matrix with bonds of melting point considerably lower than amongst the A fragment bonds.