A munition including: a control surface actuation device including: 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.

Pyrotechnic devices and firing mechanisms for aircraft canopy jettison are disclosed herein. An example firing mechanism includes a housing defining a first bore, a second bore, and a channel between the first bore and the second bore, a primary charge disposed in the second bore, a closure disc between the second bore and the channel, and a firing pin assembly disposed in the first bore. The firing pin assembly includes a percussion primer and a firing pin piston including a piston body, a firing pin extending from the piston body, and a piercing pin extending from the piston body. In response to a firing signal, the firing pin piston is moved toward the primary charge such that the piercing pin punctures the closure disc and the firing pin engages the percussion primer to ignite the primary charge.

An apparatus includes a door frame, a carriage movable along a path relative to the door frame, a window, a bolt fixing the window to the carriage, a housing fixed to the window by the bolt, a striker mounted in the housing, and a pyrotechnic charge positioned to drive the striker into the window.

An inflator-based system provides for the actuation of valves and other devices using automotive air bag inflators, for example. One or more inflators can be connected to a valve body with an adapter such that upon inflator activation, inflator gases can act on a piston or similar device to achieve desired movement or operation of the valve or device. An inflator-based actuator can provide for a single action or multiple actions of a valve or other device. Such a system can provide safer and more reliable alternatives to electro-explosive ordnance devices found in pyrovalves, for example. Other uses for an inflator-based actuation system can include a lanyard pull initiator, a dual cartridge cutter, a bolt cutter, a hot gas generator (HGG) body, and a HGG pressure cartridge, to name a few examples.

A system includes a payload ejector configured to contact a payload carried by a flight vehicle and to push the payload away from the flight vehicle. The payload ejector includes a piston configured to extend from the payload ejector and a shock attenuator coupled to the piston, where the shock attenuator is configured to push the payload away from the flight vehicle. The shock attenuator includes a shock attenuator housing and a plunger that is movable within the shock attenuator housing and that extends from the shock attenuator housing. The plunger is configured to be pushed at least partially into the shock attenuator housing in order to damp a shock pulse applied to the payload. The shock attenuator housing may have an interior space, and the shock attenuator may further include a spring, compliant material, or fluid within the interior space.

A system includes a payload ejector configured to contact a payload carried by a flight vehicle and to push the payload away from the flight vehicle. The payload ejector includes a piston configured to extend from the payload ejector and a shock attenuator coupled to the piston, where the shock attenuator is configured to push the payload away from the flight vehicle. The shock attenuator includes a shock attenuator housing and a plunger that is movable within the shock attenuator housing and that extends from the shock attenuator housing. The plunger is configured to be pushed at least partially into the shock attenuator housing in order to damp a shock pulse applied to the payload. The shock attenuator housing may have an interior space, and the shock attenuator may further include a spring, compliant material, or fluid within the interior space.

The pyrotechnical disconnection unit for impairing, preferably interrupting, an electrical charge coupling between a chargeable electrical energy cell, particularly comprising an electrical energy storage and an energy converter, and an electrical energy supply, such as a charging device, provides an electrically conductive connection section, such as an electrically conductive cable, an electrically conductive path or such, via which electrical charging energy is supplied from the energy supply of the electrical energy cell, a housing, in which the connection section is arranged, and a pyrotechnical means accommodated inside the housing being designed and/or being controllable in such a way that it unfolds its pyrotechnical effect when reaching a predefined operational state, wherein the pyrotechnical means is attributed to the connection section in such a way that the pyrotechnical effect of the pyrotechnical means at least limits, preferably suspends, the electrical conductivity of the connection section inside the housing.

A cutting device having a spring that is compressed. After a firing pin retainer has travelled a predetermined path, a locking element is released. The release results in the spring being released, causing the firing pin to be accelerated and at the end to strike a percussion cap, whereby a pyrotechnic charge therein is ignited and thereby a delay element, if provided, is lit. This delay element regulates the delay time. Afterwards, an additional charge is ignited. The gas volume thus generated applies pressure to the cutting element. Above a certain pressure the shear pin shears off, causing the cutting element to be axially accelerated. The cutting element strikes the stop at high speed as a result of the acceleration, and penetrates into same. A connection to be cut, which is guided through an opening in front of the stop, is thereby severed.

A propelling device is provided that is excellent in safety during storage and securely propels a propelling section during operation. A propelling device includes: a fixed section; a propelling section; a shape memory alloy placed between the fixed section and the propelling section; and a coupling member coupling the fixed section, the propelling section, and the shape memory alloy with each other, wherein the shape memory alloy is in a state of a compressed martensite phase, and the shape memory alloy is transformed from the state of the martensite phase to a state of an austenite phase, causing strain energy to be stored, and action of the strain energy is used to break at least part of the coupling member and also impart a propelling force to the propelling section, and action of the propelling force causes the propelling section to be propelled in a direction away from the fixed section.

A low-shock separation device is characterized in that an internal locking structure is unlocked and a bolt is separated by operating a specific part of components thereof using high pressure that is generated by combustion of powder.