Patent ID: 8096963

Claim:
A multifunction device for selective application to the body of a vertebrate comprising: a coil; a ferromagnetic plunger reciprocally secured within the coil for movement in a substantially axial direction with respect to the coil, the plunger defining a base end and a striking end; a permanent magnet disposed in close proximity to the base end of the plunger, the permanent magnet being structured to magnetically attract the plunger when the coil is not energized, whereby the plunger is biased away from the coil; the coil being structured so that, when the coil is energized, a resulting magnetic field biases the plunger towards the coil; and the coil further being structured to induce a magnetic field within the plunger that is oriented in a direction that will cause the plunger to be repelled from the permanent magnet when the coil is energized.