A munition including: a control surface actuation device including: an actuator having 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 movable rack 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 translates the rack; and a control surface operatively connected to the rack such that translation of the rack rotates the control surface.

A satellite dispenser door release mechanism is disclosed. In various embodiments, a satellite door dispenser as disclosed herein includes a wire or cable having a first end configured to be secured in a structure comprising or coupled to a dispenser body of a satellite dispenser and a second end configured to be secured in a structure comprising or coupled to a dispenser door of the satellite dispenser; and a pyrotechnic cutter configured to receive the wire or cable in a position to cut the wire or cable upon firing of the pyrotechnic cutter.

Provided is a current breaker for an aerial vehicle that can prevent occurrence of a minor collision of propellers or other components in operation with a person and can prevent occurrence of a deployment failure of a lift generating member at a crash of the aerial vehicle. A current breaker 100 for an aerial vehicle includes a rupture plate 23 that disconnects a current supply path 30 that electrically connects an electric device and an electric circuit, an igniter 10 that damages the rupture plate 23 by directly or indirectly applying a destructive force (heat and pressure) toward the current supply path 30 with respect to the rupture plate 23, and disconnects the current supply path 30 by the rupture plate 23 that has been damaged, and a controller 24 that drives the igniter 10 upon detection of an abnormality.

A satellite dispenser door release mechanism is disclosed. In various embodiments, a satellite door dispenser as disclosed herein includes a wire or cable having a first end configured to be secured in a structure comprising or coupled to a dispenser body of a satellite dispenser and a second end configured to be secured in a structure comprising or coupled to a dispenser door of the satellite dispenser; and a pyrotechnic cutter configured to receive the wire or cable in a position to cut the wire or cable upon firing of the pyrotechnic cutter.

An apparatus housing for a cutting system for radially projecting a flow of heated gas to cut from an internal surface through an external surface of a conduit. The cutting system adapted to be positioned within the conduit comprising an igniter, an extension housing, and the apparatus housing. The apparatus housing has a movable sleeve section and a nozzle assembly. The nozzle assembly comprises a conical head with through holes for evenly dispersing the flow of heated gas. A retainer abuts a diverter. The diverter imposes a 90-degree bend in the direction of the flow of the heated gas to cause the flow of heated gas to move the sleeve section away from the apparatus housing to expose a circumferential diverter gap through which the flow of heated gas projects radially to perform the cutting function. A spindle provides structure for the nozzle assembly and maintains the position of the nozzle assembly in the apparatus housing.

An injector can include an ignition device having a partition member which forms a first space to store a gunpowder and which is formed of a prescribed rigid material such that the partition member is breached based on a rise in pressure of the first space when the gunpowder is burned. The injector can also include a case including a base section fixed on a side of the ignition device. The case can be arranged in a space inside the injector main body so as to cover the ignition device. The case can define a second space with the partition member of the ignition device and encapsulate, inside the second space, a combustion product of the gunpowder. When the gunpowder burns in the ignition device and pressure inside the second space rises, a part of the case extends so as to approach a prescribed end section.

An injector can include an ignition device including a partition wall member forming a first space for housing a gunpowder and made from a rigid material to be destroyed by a rise in pressure in the first space in a case that the gunpowder is combusted. The actuator can also include a casing including a base portion being fixed to the actuator body near the ignition device, and being disposed in a space inside the actuator body covering the ignition device. The casing can define a second space between the casing and the partition wall member of the ignition device, and seal, inside the second space, a combustion product generated by combustion of the gunpowder by the ignition device. When pressure inside the second space arises due to combustion of the gunpowder, a portion of the casing can stretch to approach a predetermined end portion of the output piston portion.

A satellite dispenser and method of using same are disclosed. In various embodiments, a satellite dispenser as disclosed herein includes a dispenser body defining an interior cavity to accommodate a payload; and a plurality of externally adjustable restraints positioned within the interior cavity and configured to be extended further into the interior cavity by actuation of a manual interface external to the interior cavity.

An actuator includes an actuator body, an output piston portion, an ignition device and a sealing member formed of a metal plate-like member. The sealing member separates a space in the actuator body into a first space where the ignition device is disposed and a second space where the output piston portion is disposed, and seals a combustion product generated by the ignition device in the first space. A peripheral edge portion of the sealing member is fixed to an inner wall that defines the space. The sealing member is deformed by the gunpowder combustion such that its central portion is displaced to a side of the output piston portion, to thereby press the output piston portion using the central portion and cause the output piston portion to slide in the through hole. With this, energy for driving an output piston portion is suitably transmitted to the output piston portion.

An apparatus housing for a cutting system for radially projecting a flow of heated gas to cut from an internal surface through an external surface of a conduit. The cutting system adapted to be positioned within the conduit comprising an igniter, an extension housing, and an apparatus housing. The apparatus housing has a movable sleeve section and a nozzle assembly. The nozzle assembly comprises a conical head with through holes for evenly dispersing the flow of heated gas. A retainer abuts a diverter. The diverter imposes a 90-degree bend in the direction of the flow of the heated gas to cause the flow of heated gas to move the sleeve section away from the apparatus housing to expose a circumferential diverter gap through which the flow of heated gas projects radially to perform the cutting function. A spindle provides structure for the nozzle assembly and maintains the position of the nozzle assembly in the apparatus housing.