US Patent 7950329 Cartridge for remote electroshock weapon

A cartridge for launching from an electroshock weapon includes a housing adapted for operative connection with the electroshock weapon and having a chamber functioning as a barrel for a projectile unit. The projectile unit includes a conductive head member and an orderly packed wire assembly of electric wire connected with said head member and preferably in coil form. The head member includes a barbed needle for establishing an electrical connection with a target. The electric wire is connected at one end to the head member and at the other end to the housing whereby the wire is withdrawn from the coil as the projectile unit advances toward said target. The project unit is launched by a percussive cap at a rear end of said chamber ignited by the electroshock weapon. At the target an electrical connection is established through the wire to the weapon.