Muzzle switch for an electromagnetic launcher

Details Muzzle switch for an electromagnetic launcher Muzzle switch for an electromagnetic launcher

1988-03-30

1989-09-12

Bentley, Stephen C.

Ordnance

Accelerating

124 3, F41F 102

Patent

active

048649112

ABSTRACT:
A muzzle switch connected to the rails of an electromagnetic launcher to divert post-launch rail current into a dump resistor or other load and to prevent arcing at the muzzle. The switch includes shorting members electrically connected to the launcher rails together with a flexible washer-like ring which surrounds the rails and is in close proximity to the shorting members. Part of the rail current is diverted through the ring and when a current carrying armature which propels a payload along the rails passes the switch the interaction of the magnetic field produced by the rail current and current in the ring forces the ring against the shorting members, thus closing the switch as the armature leaves the rails.

REFERENCES:
patent: 4343223 (1982-08-01), Hawke et al.
patent: 4572964 (1986-02-01), Honig
Hawke et al., "Magnetic Propulsion Railguns: Their Design and Capabilities", Megagauss Physics and Technology, Turchi editor, 1980, pp. 297-300.

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