Abstract: A full metal jacket hollow point bullet is disclosed which has a portion of the jacket extending within the hollow open front end of the bullet. The portion of the jacket in the hollow front end has a plurality of radial slits and reinforced pointed prongs therebetween. A rearwardly extending completely empty blind bore extends from the tips of the prongs axially rearwardly into the bullet core. The base of each of the prongs is reinforced at the mouth of the front end by a fillet on each side between the ogive portion of the jacket and the base of the prong in the hollow front end. These prongs project generally radially outward upon upset of the bullet in soft tissue after passing through barrier materials such as clothing and deer hide.The jacket has a coating of copper oxide on its inner and outer surfaces which bonds the soft lead core to the jacket and minimizes lead wash.

Abstract: There is provided a gas generating composition consisting essentially of a mixture of nitroguanidine and phase stabilized ammonium nitrate. When the ammonium nitrate is phase stabilized with from about 7% to about 20%, by weight, of a potassium salt, the mixture is structurally and volumetrically stable over typical automotive operating temperatures and has a melting temperature in excess of 100.degree. C. The mixture generates large volumes of nitrogen and carbon dioxide when ignited with minimal generation of solids or toxic gases and is particularly useful as an inflating medium for automobile airbags.

Abstract: A segmenting warhead projectile has a fore section integral with an aft section. A mid section is disposed between the fore section and the aft section. Up range of a target, an explosive contained within the mid section is detonated separating the fore section from the aft section. When a desired separation distance is achieved, explosives contained within the fore and aft sections detonate, fragmenting the housing of the sections. The fragmentation patterns of the two sections overlap, providing a high dispersion of fragmentation segments along the line of flight compensating for range errors.

Abstract: The present invention relates to a process for producing a gel-free dispersion or solution of copper pyrithione employing at least one surfactant. Also claimed is the dispersion or solution itself, as well as a solid particulate copper pyrithione composition comprising copper pyrithione particles having a particle shape selected from the group consisting of rods, spheres, needles, platelets and combinations thereof, and optionally containing at least a trace amount of a surfactant on the outer surface of at least a portion of said particles.

Abstract: There is disclosed a process for the assembly of an electronic package in which the outer lead ends of a leadframe are solderable to external circuitry without the necessity of a tin or solder coat. An oxidation resistant layer is deposited on the leadframe prior to package assembly. The oxidation resistant layer is removed prior to outer lead soldering providing a clean, oxide free metallic surface for soldering.

Abstract: There is provided a core for a magnetic switch. The core has a plurality of metallic strips, either as a coil or as stacked plates. Each strip is separated from adjacent strips by an electrically insulating polycrystalline carbon layer. The high thermal conductivity of the polycrystalline carbon layer facilitates cooling of the core during operation of the switch, greatly increasing the efficiency of the switch and its operational lifetime.

Abstract: Disclosed herein is an antimicrobial composition characterized by synergistic antibacterial and antifungal efficacy and comprising a pyrithione salt or pyrithione acid, and at least one compound selected from the group consisting of benzyl and lower alkyl esters of para-hydroxybenzoic acid, salts thereof, carboxylic acids, salts thereof, and combinations thereof. Also disclosed is a method of imparting antimicrobial activity to a composition comprising water or an organic solvent which comprises adding thereto an antimicrobially effective amount of the above-described antimicrobial composition.

Abstract: There is provided a gas generating propellant mix consisting essentially of guanidine nitrate, an oxidizer selected from the group consisting of potassium perchlorate and ammonium perchlorate, a flow enhancer and a binder. When ignited, the propellant mix generates nitrogen, carbon dioxide and steam at an elevated temperature, typically in excess of 800.degree. C. The propellant mix is particularly useful in augmented gas generators to augment the evolution of oxygen from a secondary source such as potassium chlorate. The propellant mix is free of highly toxic compounds and has particular application in automotive airbags.

Abstract: There is provided a tunable high power magnetron. An annular anode circumscribes a cathode and contains a plurality of resonating cavities. The volume of the resonating cavities determines the output frequency of the RF energy emitted by the magnetron. The volume of the cavities is varied by changing the position of movable, electrically conductive back walls.

Abstract: There is provided an anodizable aluminum substrate having an increased breakdown voltage. The increase in breakdown voltage is achieved by selecting an appropriate aluminum alloy and appropriate processing parameters. Sealing the anodic film increases the breakdown voltage by decreasing corrosion. A preferred sealant is an epoxy cresol novolac having a low room temperature viscosity that cures to a highly cross-linked polymer.

Abstract: A full metal jacket hollow point bullet is disclosed which has a portion of the jacket extending within the hollow open front end of the bullet. The portion of the jacket in the hollow front end has a plurality of radial slits and reinforced pointed prongs therebetween. A rearwardly extending completely empty blind bore extends from the tips of the prongs axially rearwardly into the bullet core. The base of each of the prongs is reinforced at the mouth of the front end by a fillet on each side between the ogive portion of the jacket and the base of the prong in the hollow front end. These prongs project generally radially outward upon upset of the bullet in soft tissue after passing through barrier materials such as clothing and deer hide.The jacket has a coating of copper oxide on its inner and outer surfaces which bonds the soft lead core to the jacket and minimizes lead wash.

Abstract: There is disclosed a propellent having a deterred burn rate. The propellent is a particulate containing a nitrocellulose base and a cellulosic thermoplastic deterrent, preferably cellulose acetate butyrate or cellulose acetate propionate. The deterrent is gradationally dispersed within the particulate with the greatest concentration of deterrent at the particulate periphery.

Abstract: A liquid toner composition comprising:A. a colored predispersion comprising a homogeneous mixture of at least one selected nonpolymeric resin material, at least one selected polymeric plasticizer, and at least one selected colorant material;B. an aliphatic hydrocarbon carrier liquid;C. charge system comprising amphipathic copolymer; andD. cleaning agent comprising fumed silica.

Abstract: There is disclosed an anode for an electrothermal arcjet thruster. The anode includes a divergent nozzle having, in tandem, a recombination portion and an expansion portion. The expansion portion has a greater rate of divergence than the recombination portion. A regeneration channel containing flowing propellent gas extends internally within the anode adjacent the recombination portion. The combination of the biangle nozzle and the regeneration channel produces an arcjet thruster having a markedly increased thrust efficiency.

Abstract: A clear or colorless coating that is free of yellow discoloration, and a method for the production thereof, utilizing a pyrazole compound as a blocking agent for the blocked polyisocyanate employed in the coating composition.

Abstract: A model predictive control apparatus and method for controlling the operation of a process having a process input signal and a process output signal, which includes determining a predicted process output signal at a future steady state condition according to a process model, determining a steady state error signal according to the difference between the predicted process output signal and a desired set point signal, and determining a set of future process input change signals required to correct for the estimated steady state error by providing at least one step response in the process output at a future time. The next net process input change is then applied according to the sum of the currently determined first element of the set of future process input change signals summed with any future process input change signals that were previously calculated for the next process input change signal that is calculated according to this method. The model is expressed in velocity form.

Abstract: Disclosed are pyrithione-containing coating compositions exhibiting a combination of in-can preservation against microbial attack plus antimicrobial efficacy of the dry film resulting from the use of the coating composition on a substrate. Also disclosed is a process for imparting in-can and dry film antimicrobial efficacy to an aqueous coating composition.

Abstract: An explosive charge is disclosed for use as ammunition in a casing. The charge is comprised of a particulate propellant which is embedded in a solidified matrix prepared from an energetic liquid composition. The latter comprises a liquid, energetic plasticizer, a polyol and an organic polyisocyanate.

Abstract: An insert is positioned in the upper end of a pail, which pail contains a liquid. The insert blocks entry of a child's head into the pail. The insert is screwed into the upper end of the pail. Mating locking detents are provided on the pail and on the insert so that the insert, once screwed into the pail, cannot be thereafter unscrewed from the pail. The insert allows ready withdrawal of the liquid from the pail. A child in the vicinity of a pail equipped with the aforesaid insert is protected from drowning in a liquid contained in the pail because insert prevents a child from accidentally, or intentionally, inserting his or her head into the pail.

Abstract: There is disclosed a power supply for igniting and sustaining an electric arc in an arcjet thruster. The power supply is capable of delivering a short duration, high voltage pulse for igniting the arc and then providing a continuous low voltage, high amperage current for sustaining the arc. A circuit in the power supply includes the combination of a low impedance inductor and a high impedance inductor. High voltage is blocked by the high impedance inductor for initiating the arc. As current begins to flow, the high impedance inductor magnetically saturates and the arc sustaining current flows through the low impedance inductor.