Scuttling method for marine markers
AssigneeHer Majesty the Queen in right of Canada, as represented by the Minister of National Defence
InventorsRolf E. Kluchert, Anthony P. Humphreys
Life of this patent
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Abstract
A self-scuttling buoyant pyrotechnic marine marker. A scuttling pellet of incendiary composition is provided adjacent the pyrotechnic candle, to be ignited as the candle becomes spent and to burn a hole in the side of the jacket, or to clear impurities or residue which may have built up during burning of the candle to block the smoke or flame emission hole of the marker. Scuttling is then virtually assured by simple wave action. In this way, the hazard of spent markers being washed ashore to pose a danger to humans or to pollute the environment is reduced.
Claims8
In a buoyant pyrotechnic marine marker comprising a pyrotechnic candle, ignition means for said candle, a jacket circumscribing said candle and ignition means, said jacket having a smoke or flame emission hole for escape of smoke or flame produced by said candle when ignited, the improvement wherein said jacket also circumscribes a scuttling pellet of incendiary composition, and said marker further comprises ignition means for said scuttling pellet, said ignition means being activated when said candle is near the end of its burn, said pellet being ignitable to increase the temperature within said jacket to burn a hole through said jacket or to vaporize solid residue within said jacket around said smoke or flame ignition hole whereby said marker is scuttled through entry of water through said burn hole in said jacket or through said flame or smoke emission hole, of the spent marker.
Dependencies are inferred from the claim text.