A method for generating power in a gravity dropped munition, the method including: winding a cable around a drum of a generator associated with the munition; attaching the cable from the generator to a portion of an aircraft; separating the munition from the aircraft to unwind the cable from the drum to release the cable from the drum after a predetermined amount of rotation of the drum; converting the rotation of the drum to energy in a spring as the cable is unwound from the drum; restricting movement of an intermediate member connecting the drum to the generator while the cable is being unwound from the drum; and ending the restricting when the cable is released from the drum allowing the intermediate member to engage the drum with the generator to produce power from the generator.

A detonator arrangement (10) comprising a detonator (1) having an initiation charge (2) and a base charge (3), which initiation charge (2) is arranged to initiate a detonation of said base charge (3), characterized in that the said detonator arrangement (10) comprises a securement device (5, 72, 64) movable in relation to the detonator (1), which securement device (5, 72, 64) can be disposed in a first position arranged to prevent a transfer of the detonation of the initiation charge (2) to the base charge (3), whereby the detonation of the base charge is avoided, and in a second position arranged to allow the transfer of the detonation of the initiation charge (2) to the base charge (3), whereby the detonation of the base charge is obtained.

A warhead includes a casing having a removable front portion, a plurality of explosive segments positioned in the casing, a plurality of spacers positioned in the casing and separating the plurality of explosive segments from each other, and a removable piston configured to be inserted inside the removable front portion of the casing, wherein the removable piston pushes against the plurality of explosive segments to create a continuous segment. The removable piston may push against the plurality of explosive segments to close the plurality of spacers and move the warhead from an off position to an on position. The continuous segment may be above an explosive failure thickness in the on position. The continuous segment may be configured to detonate upon reaching the failure thickness.

Various types of structures, along with associated systems, are disclosed herein and configured for responding to an energy wave for changing a state of a mechanism to which said structures are operatively coupled. In at least one embodiment, the structure provides a material selectively changeable upon exposure to the energy wave to cause at least a portion of the material to mechanically degrade from a first state to a second state. When the material is in the first state, the material forms a mechanical or electrical link with the mechanism such that a force or an electrical current can be transmitted through the structure. When the material is in the second state, degradation of at least the portion of the material disrupts the mechanical or electrical link and inhibits transmission of the force or electrical current through the structure.

Various types of structures, along with associated systems, are disclosed herein and configured for responding to an energy wave for changing a state of a mechanism to which said structures are operatively coupled. In at least one embodiment, the structure provides a material selectively changeable upon exposure to the energy wave to cause at least a portion of the material to mechanically degrade from a first state to a second state. When the material is in the first state, the material forms a mechanical or electrical link with the mechanism such that a force or an electrical current can be transmitted through the structure. When the material is in the second state, degradation of at least the portion of the material disrupts the mechanical or electrical link and inhibits transmission of the force or electrical current through the structure.

An inertial mechanism including a member rotatable about an axis between activatable and activated positions, in the activatable position a first center of mass of the member is offset from the axis in a direction perpendicular to a direction of acceleration, the member having a surface; and another member rotatable about an axis between rest and activated positions, the rest position being where the second member cannot be moved into its activated position from an acceleration event, the other member also having a surface, the surfaces engage with each other when the member moves to its activated position to move the other member from its rest position to its activatable position, which is also where a center of mass of the other member is offset from its axis in the direction perpendicular to the direction of the acceleration.

The subject invention provides a grenade which comprises a means of indicating, to a user, that the grenade's striker assembly has been activated, and thus provides an indication that the grenade has been initiated. Specifically, the subject invention provides such indication of striker activation, and thus grenade initiation, which is evident to the user by touch and feel, without the need for purposeful inspection of the grenade by said user. More specifically, the subject invention modifies the grenade's striker assembly to create a means to obstruct the safety lever from returning to its original position.

The present invention provides an ammunition disabling system for selectively disabling ammunition that is operatively coupled to a selectively changeable material. In the operative state the material permits transmission of a percussive impact through the material for enabling firing of the ammunition; and in the deactivated state the material inhibits transmission of the percussion wave through the material for preventing firing of the ammunition. The ammunition disabling system includes an energy wave generator with an energy wave source that emits an energy wave at a frequency resonant a natural frequency of the material. When the ammunition with the material are exposed to the energy wave, the energy wave induces a response (physical and/or chemical) in the material that results in a mechanical change in the material from the operative state to the deactivated state by degrading the mechanical structure of the material.

The present invention provides an ammunition disabling system for selectively disabling ammunition that is operatively coupled to a selectively changeable material. In the operative state the material permits transmission of a percussive impact through the material for enabling firing of the ammunition; and in the deactivated state the material inhibits transmission of the percussion wave through the material for preventing firing of the ammunition. The ammunition disabling system includes an energy wave generator with an energy wave source that emits an energy wave at a frequency resonant a natural frequency of the material. When the ammunition with the material are exposed to the energy wave, the energy wave induces a response (physical and/or chemical) in the material that results in a mechanical change in the material from the operative state to the deactivated state by degrading the mechanical structure of the material.

A grenade firing mechanism (12) includes a body (24) containing a firing pin (20) and a tiring pin actuator mechanism (22). A safety system includes twist to arm collar (70) and a safety interlock (92). The collar is movable between an unarmed position and an armed position and tire safety interlock is movable between a collar locking position, a collar release position and a firing position. When the collar (70) is in the unarmed position and the safety interlock (92) is in the collar locking position, actuation of the firing pin (20) is inhibited and the safety interlock (92) inhibits movement of the collar to the armed position. When, the safety interlock (92) is in the collar release position, the collar (70) is able to be moved between said unarmed and armed positions and actuation of the firing pin is inhibited. When the collar (70) is in the armed position and the -safety interlock (92) is in the firing position, actuation of the firing pin is enabled.