Depth charge fuze
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United States of America Patent
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-
Mar 27, 1990
Grant Date -
N/A
app pub date -
May 1, 1989
filing date -
Oct 29, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A depth charge fuze includes a piston in a cylinder sealingly and displaceably guided to actuate a firing mechanism against atmospheric pressure within the cylinder on one side of the piston. The piston is operatively connected to a balancing device for balancing in axial direction. At the other side of the piston there is provided a pressure chamber connected to the surroundings by means of a number of throttling passages with valves depending on the surrounding water pressure for closing up the passages on different levels of water pressure. A shearing means retains the piston in a rest position up to a predetermined maximum pressure drop over the piston.
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