Patent ID: 6422120
Filing Date: 2002-07-23
Classification: F41A

Abstract:
A firing mechanism for a rotary machine gun having a housing and a rotor assembly rotatably disposed in said housing, the rotor assembly configured to receive a plurality of ammunition rounds and including a plurality of firing pins, each of said firing pins having a terminal, the mechanism comprising:a percussion system disposed on said housing and operable to selectively engage a selected one of said firing pins, the percussion system including a firing spring configured to act on the selected one of said firing pins to advance said selected firing pin to deliver a mechanical force to one of the plurality of ammunition rounds, said firing spring mounted on a rod having a threaded portion and a nut engageable with said threaded portion of said rod to preload said firing spring; and an electrical contact connected to an electrical power source, said electrical contact disposed in said housing to selectively engage the terminal of each of said firing pins as said rotor assembly rotates, said electrical contact transmitting electrical energy through the selected one of said firing pins to said one ammunition round after said percussion system has moved said selected one firing pin into contact with said one ammunition round.