US 4,708,049 AGranted

Automatic fire arm with external motor

AssigneeEtat Francais

InventorsJacques Durant, Georges Simon, Alain Charton

Life of this patent

Estimating the term…

Loading patent…

Abstract

The invention is directed to an automatic firearm apparatus of the type including a feed system and a rotatable drum driven in rotation by an outer motor, wherein the drum includes a closed contour breech drive ramp. The apparatus includes two follower members cooperating with the ramp, each rigidly mounted on a breech to impart to the breech a reciprocating movement between a feed position, in which it is separate from its respective cartridge chamber, and a firing position, in which it closes the cartridge chamber. The feed system includes a feed mechanism rotating continuously and two distribution mechanisms rotating intermittently. Each of the distribution mechanisms are arranged to receive ammunition from the feed mechanism when stopped and, when rotating thereafter, to supply this ammunition to its respective breech while the latter is in its feed position.

Claims5

Dependent claims

An automatic firearm of a type including a feed system, comprising:

a rotatable drum driven in rotation by an outer motor, said drum including a closed contour breech drive ramp;
first and second follower members cooperating with said ramp, each said follower member being rigidly mounted to a breech associated with a cartridge chamber to impart to each said breech a reciprocating movement between a feed position where it is separated from its respective cartridge chamber and a firing position where it closes said respective cartridge chamber;
feed means, including continuously rotating dispensing means and distribution means, said distribution means respectively including first and second intermittently rotating means respectively associated with said breeches;
whereby said first and second intermittently rotating means cooperate with said follower members, said rotatable drum and said dispensing means, such that ammunition is dispensed from said dispensing means to said intermittently rotating means when said intermittently rotating means are not rotating, and said ammunition is supplied from said intermittently rotating means to their respective breeches when said respective intermittently rotating means are rotating.

1 more element

Dependencies are inferred from the claim text.