Abstract: An apparatus which is constituted to supply electrical energy to a melting and vaporizing material (for example metal wire 6) so as to cause the melting and vaporizing material to melt and vaporize, thereby demolishing an object to be demolished (such as concrete 2) using the vaporization and expansion force generated at the time of melting and vaporization of the material; wherein either by providing a granular material 8 which ejects from a container following the generation of the vaporization and expansion force, or by using an inflammable material as demolishing material 46 in which the melting and vaporizing material is immersed, a to-be-demolished object is demolished with a strong demolishing force.

Abstract: A shock tube connector system comprises a substantially cylindrical detonator having a longitudinal axis a block body receiving the detonator therein, and an end cap. The detonator includes an axisymmetric exterior shell including a cylindrical main section, a cylindrical explosive end portion having a diameter less than the diameter of the main section, and a transition portion connecting the main section and the explosive end portion of the shell. An explosive charge is contained within the explosive end portion of the shell and is distributed along the longitudinal length of the explosive end portion. The explosive charge preferable comprises two portions of lead azide or a first charge portion of lead azide and PETN and a second charge portion of PETN. An initiating shock tube is operatively connected to the explosive charge via a delay element. The block body includes a housing within which the main section of the detonator is received.

Abstract: The present invention relates to a propellant charge module for artillery guns, of the type which is usually referred to by the term “modular charges” (1). A special feature of this type is that, in an otherwise empty pyrophoric relay tube (10) arranged axially in the longitudinal direction of the charge, it has a firing charge which is made up of a plurality of successive powder rings (14), the different ring-shaped parts of this firing charge having distancing members (16) which are directed towards each other and give rise to narrow ignition gaps (18) between them.

Abstract: A gas generant is provided which decreases toxic components, in particular carbon monoxide and nitrogen oxides, in generated gas to a concentration practical as an air bag system for automobile. A nitrogen-containing organic compound such as a compound containing amino group or amido group or a tetrazole derivative and a oxygen-containing inorganic oxidizer such as KNO3, Sr(NO3)2 or KClO4 are essential components. Therewith one or more metal oxides are contained in the mixed catalyst of the gas generant composition. The oxide is selected from manganese dioxide having a specific surface area not less than 50 m2/g; copper oxide having a specific surface area not less than 1 m2/g; molybdenum oxides such as molybdenum dioxide, molybdenum trioxide, molybdic acid and ammonium molybdate: and copper oxides, cobalt oxides, iron oxides and silver oxides.

Abstract: An explosion-suppressing structure comprises an explosion-suppressing barrier, such as a wall of liquid-filled tanks or blocks, and rupturable explosion-suppressing roof members 23 such as hollow rigid bodies containing liquid-filled bags 24 and supporting further bags 25. In an alternative embodiment, the roof member comprises a net stretched over the barrier.

Abstract: A packaged product has an explosive article packaged in a film. Although the film can comprise any one or more of a wide variety of polymers, the film is non-crosslaminated and is sealed to itself, and has a total free shrink at 185° F. of less than about 5 percent. The explosive article preferably comprises a flowable explosive composition. Preferably the film is lap-sealed along its length and clipped at the ends, with the package being in the form of a chub. The relatively low total free shrink at 185° F. enables the film to be used in a vertical-form-fill-and-seal packaging process in which a lap-seal is formed using a hot-melt adhesive composition. The relatively low free shrink of the film allows the film to be sealed using a hot melt type adhesive, without the film shrinking back to such an extent that the resulting seal is defective.

Abstract: A thin metal wire 8 is fused and vaporized by a predetermined amount of electrical energy supplied to the thin metal wire 8 for a short period of time, whereby a blasting substance 3 is expanded in volume. Therefore, a vaporization expansion force caused by the fusion and vaporization of the thin metal wire 8 moves a shock delivering member 22, so that the shock delivering member 22, colliding with a to-be-blasted object H1, delivers a shock to the to-be-blasted object H1, thereby blasting the to-be-blasted object H1.

Abstract: An aerospace vehicle for delivering a payload into space includes a first stage and a second stage with a plurality of separation assemblies coupling the first stage to the second stage. At least one container charged with pressurized gas in fluid communication with the separation assemblies provides pressurized gas to the separation assemblies to cause separation of the first stage and the second stage.

Abstract: An apparatus and method for inflating an inflatable device which involve a heat source composed of a load of fuel material and an initiator is actuatable to be in heat transmitting communication such as to initiate dissociation of a gas source material to form at least one gaseous dissociation product used to inflate the inflatable device.

Abstract: A paint ball land mine capable of propelling standard caliber paint balls during simulated war games is disclosed. The present paint ball land mine is designed to simulate the function of a U.S. military Claymore anti-personnel mine for purpose of marking participants as out of the competition in the simulated war game. The paintball land mine includes a cylindrical discharge tube configured to receive a pyrotechnic charge in the form of a 12 gauge shotgun blank round and/or a .38 caliber blank round. In a preferred embodiment a firing pin is pivotally attached in operative relation to the pyrotechnic charge and spring-biased into contact therewith. A trigger mechanism including a trip pin fixedly attached to a trip wire is interposed between the pyrotechnic charge and the firing pin. When a participant comes into contact with the trigger mechanism the paintballs are propelled at a velocity up to 200 feet per second.

Abstract: A water-based apparatus for mitigating the gas pressure loading and associated damage and injuries from a fully or partially confined explosion. The water-based apparatus comprises a water-blanket which rests on each pallet of ordnance to mitigate the gas pressure loading from an inadvertent explosion of the ordnance. The water-blanket includes a pair of storage modules, each module comprising a plurality of water storage compartments that store a predetermined quantity of water which is dependent upon the type and quantity of explosive in the ordnance on the pallet. The storage modules are joined by a zipper which allows the modules to be separated for ease in transport.

Abstract: A radio frequency receiver, in response to input command signals from some remote source, initiates electrical powering of an electronic firing circuit through which electric pulses are generated and fed through a power cable to impulse cartridges at the upper ends of storage tubes within a payload dispenser. The impulse cartridges in response to such pulses ignites the payloads stored therebelow within the storage tubes closed by retention caps that are ejected with the payload from the dispenser during ignition.

Abstract: A device for dispersing birds in airport areas, including a self-propelled projectile with a delayed firing element (15, 18, 27, 29) and a sound-effect charge (9) designed to scare birds away and housed in said projectile.

Abstract: A pyrotechnic cutting device (14) is designed for directly cutting one or two parts (10) made form a nonmetallic material, such as a composite material. The device (14) comprises a pyrotechnic expansion tube (16), which acts on the part or parts (10) to be cut by means of a cutting member (32). This member can act in the manner of a punch or single or double shears. It can also be deformable or non-deformable. In the former case, the cutting member (32) can be integrated into the part (10) during its manufacture, particularly when said part is made from a composite material.

Abstract: A longitudinal launcher tube made substantially of polyurethane resin or plastic having a rear end closed by a transverse rear wall and an open front end. The invention allows a projectile to be housed in the tube and adapted to slide longitudinally inside it towards the front, to be expelled from it via the front end tube, means for defining with the tube and projectile a rear gas expansion chamber immediately to the rear of the projectile, and an impulse cartridge adapted on command to develop gas pressure in the rear chamber to cause the expulsion of the projectile via the front end of the tube. The apparatus is a pyrotechnic device for rigidly supporting fireworks such as mortar-type, rocket-type, projectile-type, and other pyrotechnic devices so that the launcher device is reusable, whereby the launcher substantially retains its integrity after each launch to minimize harm caused to persons and the environment.

Abstract: A multiple effect pyrotechnic shell (20), having a lift chamber (22), primary break (24), secondary break (26), and a tertiary break (28) has a desired weight distribution to inhibit tumbling. The secondary break weight is less than the primary break weight, and the tertiary break weight is less than both the primary and secondary break weights. Thus, the center of gravity of the shell (20) is positioned below a midpoint of the shell height. A first timing fuse (46) extends from a lift charge (30) into a primary break charge (50A) of the primary break (24), and a primary internal timing fuse (64) extends from the primary break (24) to the secondary break (26). Further, a secondary internal timing fuse (70) extends from the secondary break (26) to the tertiary break (28). Fuse fragments (52) are preferably disbursed within the break hulls (48) to provide filler and add an additional effect to each break (24-28).

Abstract: Supplying a predetermined amount of electric energy to a fine metal wire 4 in a short time causes the fine metal wire 4 to melt and evaporate. Following this phenomenon, a blasting substance 10 expands in volume, so that the evaporative expansion force resulting from the melting evaporation of the fine metal wire 4 is transmitted to and blasts a to-be-blasted object 5.

Abstract: A target-penetrating aerial bomb includes a penetrator of hard steel or similar material that contains an explosive charge. A rocket motor is formed as an annular chamber and surrounds the penetrator. The bomb includes a guidance and control unit that guides the bomb on a glide path after release from the delivery aircraft, and steers the bomb onto a dive line. Once the bomb is aligned on the dive line, the guidance and control unit fires the rocket booster to accelerate the bomb to the target. A fuse ignites the explosive after target penetration.

Abstract: Structure and a method for producing very dense bodies of material from particulate materials. A particulate material is placed within an electrically conductive container. A solenoid or coil encompasses the electrically conductive container, and a large magnitude of electrical current is caused to flow through the solenoid or coil. As the electrical current flows through the solenoid or coil, large magnitudes of magnetic pressures are created upon the electrically conductive container, and the electrically conductive container is compressed, and the transverse dimension thereof is reduced. Thus, the particulate material within the electrically conductive container is very firmly compacted, and a rigid body of material is provided. Any one of numerous types of particulate material may be employed. For example, a body of electrical superconductive material of any desire size and shape can be produced by this method by the use of superconducting particulate material.

Abstract: The present invention relates to compounds of formula I: wherein Ar is an aryl group or a heteroaryl group; X is —NH—OH or —OH; R1 is H, —CH(R3)(R4), —C(O)R3, a cycloalkyl group, a heterocycloalkyl group, an aryl group, or a heteroaryl group, wherein R3 is H or any suitable substituent and R4 is H, an alkyl group, a cycloalkyl group, a heterocycloalkyl group, an aryl group, or a heteroaryl group; R2 is CH2-R5, wherein R5 is H or any suitable substituent, or wherein R5 and R4 are optionally substituted carbon atoms singly- or double-bonded to one another; and pharmaceutically acceptable prodrugs, salts, and solvates thereof. The invention further relates to methods of using these compounds, particularly as metalloproteinase inhibitors.