Water ballast compartment for buoyant marine devices
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United States of America Patent
Stats
-
Aug 7, 1984
Grant Date -
N/A
app pub date -
Mar 16, 1982
filing date -
Mar 16, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improvement in buoyant marine devices, such as pyrotechnic markers, the displacement of which normally decreases during operation as a result of weight loss. The device is provided with a ballast means and means to enable the ballast compartment to fill progressively with water whereby, during operation, displacement of water by the marker is maintained to a degree which will ensure that the device remains in operative orientation. In this way, the problem of tilting by marine markers because of a gradual decrease in weight, to the point that the marker may be easily submerged by water and its operation thereby hampered, is significantly reduced.
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Cited Art Landscape
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