Flash-bang projectile

Details Flash-bang projectile Flash-bang projectile

2007-02-06

2007-02-06

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Visual indication

Movable

C340S385100, C340S326000, C102S209000, C102S210000, C102S502000, C102S531000, C473S570000, C473S571000, C362S203000, C124S027000, C124S075000, C310S339000

Reexamination Certificate

active

10641338

ABSTRACT:
A flash-bang projectile that generates one or more noise pulses and one or more flashes of light. In generating a noise pulse, the flash-bang projectile provides a housing that includes a gas chamber that entraps air. The gas chamber includes a compression device that, when the flash-bang projectile is shot or otherwise ejected by a gun or other form of ejection device, compresses the air that is entrapped in the gas chamber. A burst disk forms one wall of the gas chamber and is configured to rupture a selected time delay after the air has been compressed. Rupturing of the burst disk releases the compressed air entrapped in the gas chamber, allowing the air to be released through a horn nozzle, thereby generating a noise pulse. The flash-bang projectile may have more than one gas chambers, with associated compression devices, whose burst disks are configured to rupture with diverse time delays, in which case the flash-bang projectile can generate multiple noise pulses with corresponding delays. In generating a light flash, the flash-bang projectile includes one or more light generating devices, which may include items such as flash lamps, light-emitting devices, and the like, along with a control module for powering the light generating devices. The control module includes an electrical generating arrangement that uses a portion of the kinetic energy imparted to the flash-bang projectile when it is ejected to generate electrical energy. The electrical energy is, in turn, used to power the light generating devices. Electrical traces on the burst disks are broken when the burst disks rupture to facilitate synchronization of the light flashes with the noise pulses.

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