Patent ID: 9618305
Date: 2017-04-11
CPC Classifications: F42B

Claim:
1. A method of actuating a control surface in a munition, the method comprising: coupling a pair of fins to an actuation device; generating pressurized gas to selectively actuate the actuation device, the actuation device having two or more pistons, each of the two or more pistons having an end with one of a concave or convex shape; and converting the actuation of the actuation device to rotation of the pair of fins wherein the converting comprises moving each of the two or more pistons into one of a plurality of space portions having the other of the concave or convex shape, the two or more pistons and the plurality of spaced portions being equally distanced apart, with a distance between the two or more pistons being greater than a distance between the plurality of spaced portions.