Depth charge fuze

Details Depth charge fuze Depth charge fuze

1989-05-01

1990-03-27

Nelson, Peter A.

Ammunition and explosive-charge making

Loading fireworks and bursting charges

Implements

102326, 102399, 1022021, 10227511, F42B 310

Patent

active

049110586

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.

REFERENCES:
patent: 3889598 (1975-06-01), Belsley
patent: 4369709 (1983-01-01), Backstein
patent: 4478149 (1984-10-01), Backstein
patent: 4584925 (1986-04-01), Culotta et al.

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