Combustion – Illuminating flash device – e.g. – photographic bulb – etc. – Fuel charge within sealed transparent casing – e.g. – bulb
Patent
1995-06-02
1997-06-24
Dority, Carroll B.
Combustion
Illuminating flash device, e.g., photographic bulb, etc.
Fuel charge within sealed transparent casing, e.g., bulb
362 15, F21K 500
Patent
active
056412843
ABSTRACT:
An ultra high intensity flash cartridge is provided for light guns. The ultra high intensity of the flash is obtained by sealing fast burning filaments of magnesium inside a glass bulb containing pure oxygen gas under pressure. The flash is triggered by an electric current. The intensity is boosted by designing the rear surface of the bulb with a paraboloidal shape and coating it with a reflective surface so that all the light is projected and concentrated in the forward direction without requiring any external reflector. Guide flanges are built into the bulb to maintain proper orientation when loaded into a light gun. The cartridge is capable of generating a light flash several orders of magnitude brighter than the noon-day sun for temporarily blinding an assailant at a distance.
REFERENCES:
patent: 2191402 (1940-02-01), Saffir et al.
patent: 2858686 (1958-11-01), Roth
patent: 3319058 (1967-05-01), Toomey et al.
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