Ammunition and explosives – Cartridges
Patent
1993-09-16
1995-07-11
Tudor, Harold J.
Ammunition and explosives
Cartridges
102202, 102440, 102472, 89 8, F42B 508
Patent
active
054311055
ABSTRACT:
An electrothermal chemical cartridge with a fuse of tapering cross section enables higher impulse energy to be imparted to a projectile by means of complete controlled burning of propellant. A long, narrow tube filled with propellant has a fuse on its inside surface with a cross section that tapers toward the discharge end, separated from the electrical ground of the cartridge casing by a layer of insulation sufficiently thin to be destroyed as the fuse ignites the propellant. A high-voltage electrode connected at the back end of the tube provides for application of a pulse of sufficient current density to ohmically heat or burn the fuse in a controlled fashion from the discharge end to the back end. Many such tubes can be bundled together in a large casing for wide barrel guns.
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Maxwell Laboratories Inc.
Tudor Harold J.
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