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Electric motor
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Noise control system and method for small caliber ammunition
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Radial acoustic speaker
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Inflatable bag with burst control envelope and gas generator
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Electromagnetic field generator
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Flexural disk transducer shell
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Locomotive acoustic warning system
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Hydrodynamic modulator
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Inflatable bag with burst control envelope and gas generator
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Directional isophasic toroidal whistle
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Phase plug with axially twisted radial channels
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Radial waveguide for double cone transducers
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Vortex cannon with enhanced ring vortex generation
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System for targeting directed acoustical energy
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Shield with integrated loudspeaker
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Submersible electro-dynamic acoustic projector
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Omni-directional acoustic radiator with radial waveguides for submersible multi-transducer array
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Omni-directional radiator for multi-transducer array
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