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8438977 |
Projectile having deployable fin
A supercavitating projectile is disclosed that has deployable fins. The fins are pivotally coupled to the body of the projectile. The fins have two primary states: stowed within a recess at the...
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8402895 |
Vortice amplified diffuser for buoyancy dissipater and method for selectable diffusion
Embodiments of a vortice-amplified diffuser section for use in a buoyancy dissipater are generally described herein. The vortice-amplified diffuser section may include a plurality of diffusion...
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8371204 |
Bubble weapon system and methods for inhibiting movement and disrupting operations of vessels
Embodiments of a bubble weapon system and methods for inhibiting movement and disrupting operations of vessels are generally described herein. In some embodiments, a bubble weapon is configured to...
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8250981 |
Underwater hydro-reactive explosive system
An underwater hydro-reactive explosive system includes a pressure vessel with a central section of water disposed between identical sections of a material selected from the group consisting of...
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8245645 |
Mine-defeating projectile
A mine defeating projectile includes a housing defining an inner cavity, a plurality of channels extending through a front surface of the housing and to the inner cavity, and a plurality of cutout...
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8151710 |
Surface ship, deck-launched anti-torpedo projectile
A surface ship, deck-launched anti-torpedo projectile is disclosed. The projectile has a blunt-end nose to create a cavitating running mode. The nose has a gradual, stepped, right-circular...
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8151711 |
Supercavitating projectile with reduced-drag control surfaces
The illustrative embodiment provides bumpers which are roughly shaped like skis that face towards the air-water boundary of the air cavity. When the projectile fishtails and one or more of the...
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8146501 |
Supercavitating projectile having a morphable nose
A supercavitating projectile having a nose that is capable of morphing its shape or length for extended operating range is disclosed.
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8093487 |
Removable protective nose cover
A removable protective nose cover for a submersible structure having a nose section is disclosed. The removable protective nose cover can include a plurality of shell members, each of the shell...
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8082847 |
Cavity-enhancing features and methods for a cavity-running projectile
A cavity-enhancing feature and method are disclosed for a projectile that is capable of operating underwater in a cavity-running mode.
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8015922 |
Control system for right circular cylinder bodies
A technique for controlling the pitch of a supercavitating projectile is disclosed. For example, the illustrative embodiment controls the pitch of a supercavitating projectile by shifting its...
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8006619 |
Underwater acoustic tracer system
An underwater supercavitating projectile includes means to form ripples on its surrounding cavity so as to provide well-defined disturbances of the cavity boundary. As the ripples move aft of the...
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7975614 |
Acoustic shotgun system
A high velocity acoustic signal producing underwater shotgun system for dispersing a plurality of relatively small supercavitating projectiles over a wide spatial field at long range using the...
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7966936 |
Telescoping cavitator
A high speed underwater projectile configuration that includes a cylindrical telescoping cavitator design capable of providing projectile nose shape change where such change to the projectile nose...
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7895948 |
Buoyancy dissipater and method to deter an errant vessel
Embodiments of a buoyancy dissipater and method for deterring an errant vessel are generally described herein. In some embodiments, a volume of gas is generated from a propellant and diffused below...
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7874251 |
Cavity-running projectile having a telescoping nose
A projectile having a cavity-running mode is provided with a mechanism for changing the diameter of its nose. Based on changed conditions, the diameter of the nose can be actively reduced or...
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7836827 |
Method of operating a supercavitating projectile based on time constraints
A method for operating a thrust-generating supercavitating projectile involves launching the projectile in water from rest at the maximum available thrust, maintaining that thrust until...
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7832336 |
Method of operating a supercavitating projectile based on velocity constraints
A method for operating a thrust-generating supercavitating projectile involves launching the projectile at a velocity above the minimum required to maintain supercavitating movement, delaying...
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7779759 |
Supercavitating water-entry projectile
A water-entry projectile capable of supercavitation and spin-stabilization comprises a forward section having one or more forward stepped sections, each stepped section being symmetrical in...
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7730838 |
Buoyancy dissipater and method to deter an errant vessel
Embodiments of a buoyancy dissipater and method for deterring a vessel are generally described herein. In some embodiments, a volume of gas is generated from a propellant and diffused below a...
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7690309 |
Supercavitating vehicle control
A control system for a supercavitating vehicle includes a set of winglets for rapid maneuverability and a segmented ring wing for fine stabilization control. The winglets and ring wing extend from...
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7598451 |
Porous plate rocket torpedo
The present invention includes a means to sustain a rocket torpedo's supercavation envelope to enhance the speed, maneuverability and resistance to percussion based counter measures. The invention...
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7428870 |
Apparatus for changing the attack angle of a cavitator on a supercavatating underwater research model
An apparatus for changing the angle of attack of a cavitator on a supercavitating underwater research model. The apparatus has a nose assembly that has a pivotable cavitator tilt plate, an actuator...
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7392733 |
High resolution projectile based targeting system
A projectile based targeting system for underwater objects includes a trainable gun terminal mounted in a waterproof housing. The gun terminal includes plural gun barrels terminating in waterproof...
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7373883 |
Projectile with tail-mounted gas generator assembly
A projectile is provided that includes a body having a front tip portion and a rear end portion. A combustion chamber base plate is operatively arranged with the rear end portion of the body and...
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7347146 |
Supercavitating projectile with propulsion and ventilation jet
A supercavitating projectile is disclosed and includes a combustion chamber, a forward-directed jet nozzle and a comparatively larger gas duct/rear-directed jet nozzle. The combustion chamber is...
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6962121 |
Boiling heat transfer torpedo
A system has a source of gas venting gas at a nose portion of the vehicle to create a gas/vapor cavity on the nose portion and an adjacent hull of the vehicle. A thermal engine propelling the...
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6951179 |
Boiling heat transfer surface
A system to create and maintain a gas/vapor cavity about a hull surface includes a fence selectively extendable above and below the hull surface. A gas venting means is positioned beneath the hull...
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6802260 |
Safety and arming device using cellulose-based sensor/actuator
A safety and arming device has first and second portions of an explosive train fixably supported in a housing. A third portion of the explosive train is fixable in a first position such that the...
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6739266 |
High-speed supercavitating underwater vehicle
A high-speed supercavitating underwater vehicle includes an elongated hull of circular cross section, the hull having a cavitator at a forward end thereof and means for ventilating gas to form a...
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6601517 |
Super-cavitating penetrator warhead
The present invention comprises a warhead for penetrating hardened or buried targets. In general, the invention comprises a warhead for penetrating hardened or buried targets comprising a warhead...
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6584924 |
Apparatus for controlling pressure recovery
An apparatus for controlling fluid pressure recovery includes an elongated housing having an opening at a first end thereof, an opening at a second end thereof, an inner peripheral surface, and a...
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6530325 |
Method of scrapping steel structures
A method of breaking up a structure for the recovery of steel as scrap. The structure has steel plates forming a compartment secured to framing in the compartment. The method includes at least...
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6415211 |
Weapon and launcher test set (WALT)
A portable data acquisition system for use in certifying torpedo tube-launched weapons such as a Mark 48/ADCAP, a Tomahawk missile or a Harpoon and the like. The system includes a portable...
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6405653 |
Supercavitating underwater projectile
A supercavitating underwater projectile adapted to be fired from a gun or the like, comprising a front end or nose portion and a rear end portion. An auxiliary rocket motor is disposed within the...
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6401591 |
Neutralization chemical injection penetrator
The present invention comprises a device for clearing mines comprising a housing assembly with a chamber therein that carries a surface contact chemical that is capable of consuming the explosive...
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6388184 |
Deployable nose for an underwater vehicle
A deployable nose is used on an underwater vehicle to provide a shorter length when in a retracted position and to provide a reduced drag when in the deployed position. The deployable nose includes...
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6376762 |
Small vehicle launch platform
A launch platform for a host vehicle. There is a cradle having a cylindrical shape with peripheral axial recesses formed therein and arranged around the cradle. A release mechanism is positioned...
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H001938 |
Supercavitating water-entry projectile
A supercavitating water-entry projectile having empennage on the aft end which provides both aerodynamic and hydrodynamic stability and a supercavitating nose section is provided. A representative...
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6044745 |
Seabed enclosures
The disclosure relates to an enclosure for weaponry, listening, identifying, recording, communications equipment or the like for use in or on the seabed. The enclosure comprises an outer...
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5955698 |
Air-launched supercavitating water-entry projectile
A supercavitating water-entry projectile having empennage on the aft end ch provides both aerodynamic and hydrodynamic stability and a supercavitating nose section is provided. A representative...
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5929370 |
Aerodynamically stabilized projectile system for use against underwater objects
A projectile is propelled from a location in air, through an air/water interface, and toward a submerged underwater object. The projectile includes a forward end that forms a cavitation void around...
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5690091 |
Speargun projectile assembly
A projectile assembly for use in a breech loading hydraulic speargun. The assembly consists of a dart connected to a plug end. The assembly is inserted into the breech end of the speargun barrel...
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5690090 |
Lanyard retainer for a speargun projectile
A lanyard retainer for use in a breech loading hydraulic speargun. A projectile is attached to the retainer and the retainer and projectile are inserted into the breech end of the speargun barrel...
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5078069 |
Warhead
A warhead, used in a torpedo, includes an expolsive device that is detonatable within a breached water-tight compartment such that damage to the target is enhanced by the presence of the confined...
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4911058 |
Depth charge fuze
A depth charge fuze includes a piston in a cylinder sealingly and displaceably guided to actuate a firing mechanism against atmospheric pressure within the cylinder on one side of the piston. The...
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4895074 |
Ignition trigger device
In an ignition trigger device for an underwater projectile, a sensor that is connected with electronic means is provided. The sensor is equipped with water outlet openings, and consists of a...
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4854238 |
Shark projectile
A projectile having a tubular projectile body and provided with pointed fins pivotally mounted at the front end of the projectile body. The head fins expand when the projectile strikes a target...
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4788914 |
Missile nosepiece
A nosepiece for the forward end of a missile that is launched into the atmosphere for a ballistic trajectory and a water entry impact comprises a frangible base and a separable nosecap, the base...
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4736685 |
Noise suppression in torpedoes
Noise suppression is achieved in a closed Rankine cycle torpedo including a propulsor 36, a turbine 26 connected to the propulsor 36, the turbine 26 having an annular outlet 40. The regenerator 42...
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