Abstract: A versatile, dearmer using small arms cartridges that is low cost, may be usable, and can employ various types of destructive projectiles including water, clay, shot and steel slugs. A novel feature is a shock tube firing circuit which, when combined in a multiple barrel embodiment, produces multiple projectiles with a high degree of firing simultaniety.

Abstract: A composition, suitable for use as an explosion suppression composition, and comprising a mixture of at least one particulate component selected from alkali metal bicarbonate, alkali metal sesquicarbonate, and alkali metal carbonate, and a free-flow additive in particulate form. Also, a discharge apparatus comprising a vessel containing the composition under pressure, and an explosion suppression system comprising a pressure change detector operatively connected to a discharge vessel.

Abstract: A method and inhibitor are provided for substantially diminishing the deleterious effects of a bomb blast such as is commonplace with terrorist activities. A generally flexible container filled with a liquid, generally water, is shaped and adapted to substantially cover a bomb to obscure substantially all open spaces from the bomb. The water serves to absorb a large proportion of the energy of the bomb blast and therefore reduces the most dangerous effects of bombs namely that of secondary shrapnel which generally does the most damage and the container and water prevent, to a substantial extent, any primary shrapnel or other debris from being blown out with substantial force. The invention also provides special containers of various different designs as well as a method of manufacturing such containers which are preferably of a resilient nature.

Abstract: A stable aqueous foam concentrate for use in the generation of a stable aqueous foam having an expansion ratio of between 10:1 to as high as 1000:1 or more includes an anionic surfactant material of a chain length of between C12 to C14, a glycol or mixtures thereof, a fatty alcohol of between C12 and C14 chain length and a copolymer of maleic anhydride. The components, other than the polymer are mixed to form a micellar structure and the polyer is then added to react with at least one of the components of at least some of the micelles. Upon foam formation, the polymer which is covalently bound operates to reduce the water drainage rate to increase the foam stability, the foam being biodegradable.

Abstract: A disposable EOD dearmer (10) includes an propellant charge (36) permanen affixed to a tubular body (14) for propelling a dearmer slug (40) against a dud casing (12). The pressure versus time characteristic (60, 70) of the charge can be selected to provide a preselected velocity for the slug at impact with the casing, and the initial position (60', 70") of the slug can be selected to provide a preselected delay between ignition of the charge and impact between the slug and the casing.

Abstract: A vented suppressive shielding device which may be used in either a permanent building placent or portable device to protect persons or equipment from the effects of an explosive detonation. The shielding is relatively lightweight and comprises a shielding barrier having a frame means, the frame means carrying at least two barrier means in selected position relative to one another. The shielding barrier has oppositely facing surface members, wherein one of these surface members is disposed so as to face an explodable device, with the other surface facing away from the explodable device. Each one of the barrier means is located adjacent to one of the surface members such that one of the barrier means is free to move in the space defined by the frame means and relative to the frame means.

Abstract: Detonation apparatus constituting a novel detonation amplifier is disclosed herein having a container enclosing a quantity of combined liquid compositions into which a detonation chamber is submerged. A pyrotechnic charge is suspended with the chamber which is surrounded by the liquid explosive composition. Apertures are provided in the wall of the chamber for permitting the liquid composition to enter the chamber. Activation of the pyrotechnic charge detonates the liquid composition within the chamber which, in turn, detonates the bulk quantity of the liquid composition in the container. In another form, the detonation amplifier includes a shaped charge producing a shock wave reflected back from a baffle to detonate the bulk quantity of the liquid composition in the container.

Abstract: The present invention relates to a readily replaceable liner for a detonation chamber (1) intended to protect the inside of the chamber from damage when the detonation chamber is used for test firings of fragment-producing charges. The liner consists of a plurality of readily replaceable parts or sections of a few types. In the case of cylindrical detonation chambers (1), use is made primarily for protection of the mantle wall of the chamber of rectangular plates or cassettes (20) slightly cupped in one direction, which are held together by a special fitting (29) to mantle rings covering the inside of the detonation chamber wall (10). The joint between the various parts of the liner is such that a small amount of play or rattle exists between the parts. By this means, the liner is prevented from commencing to vibrate in phase with the chamber wall (10). The fundamental idea behind the invention is a readily replaceable liner capable of receiving fragments and in which only damaged parts need to be replaced.

Abstract: A remote control robot vehicle which includes at least two pairs of wheels, at least one pair of which is driven, said pairs of wheels being mounted on a support secured to the vehicle which supports are each mounted for pivotal movement about a generally horizontal axis extending longitudinally of the vehicle, those wheels on the same side of the vehicle being capable of being driven synchronously.