Patent ID: 8324544

Claim:
A guidable projectile, comprising: a guidable projectile frame having a support structure; a set of fins, each fin being pivotally attached to the guidable projectile frame; and a deployment assembly to deploy a set of fins relative to the guidable projectile frame, the deployment assembly including: an actuator supported by the support structure, the actuator being constructed and arranged to provide an actuator force; a first spring-loaded stage supported by the support structure and in operative communication with the actuator, the first spring-loaded stage being constructed and arranged to provide a first spring-loaded output force to a fin restraining element in response to the actuator force from the actuator to move the fin restraining element from a locked position to an unlocked position relative to the set of fins; and a second spring-loaded stage supported by the support structure and in operative communication with the first spring-loaded stage, the second spring-loaded stage being constructed and arranged to provide a second spring-loaded output force in response to the first spring-loaded output force from the first spring-loaded stage, the second spring-loaded output force being applied to the set of fins to move the set of fins from an initial non-deployed configuration relative to the support structure to a subsequent deployed configuration relative to the support structure.