US 2013/0277494 A1 · Very Low Power Actuation Devices

Abstract

A method of actuating a control surface in a munition. The method including: coupling a pair of fins to an actuation device; generating pressurized gas to selectively actuate the actuation device; and converting the actuation of the actuation device to rotation of the pair of fins. The converting can convert a linear output of the actuation device to the rotation of the pair of fins or a rotary output of the actuation device to the rotation of the pair of fins. The generated gas can be directly provided to the actuation device or the generated gas can be stored in a storage device before being provided to the actuation device. The method can further include repeating the coupling, generating and converting for a second pair of fins.

Claims20

Dependent claims

A munition comprising:

a control surface actuation device comprising:
an actuator comprising two or more pistons, each of the pistons being movable between an extended and retracted position, the retracted position resulting from an activation of each of the two or more pistons;
and
a rotatable plate having a pocket corresponding to each of the two or more pistons, each pocket being engageable with a corresponding portion of each of the two or more pistons, a distance between the pockets being different than a distance between the portions of the two or more pistons, such that activation of the portion into the corresponding pocket sequentially rotates the plate;
and
a control surface operatively connected to the plate such that rotation of the plate rotates the control surface.

3 more elements

Dependencies are inferred from the claim text.

Very Low Power Actuation Devices

Life of this patent

Very Low Power Actuation Devices

Life of this patent

Abstract

Claims20