A sensor assembly for use in actuating an electronic detonator in response to a shock tube event propagated through a shock tube, the sensor assembly including support, and at least one sensor on a surface of the support, the support being configured to position the at least one sensor displaced laterally from a line of action of the shock tube event.

A rocket propelled bullet assembly for increasing the effective range of a gun includes a shell casing that is positioned in a chamber of a gun and the shell casing has an open end. A first propellant is contained in the shell casing and the first propellant is ignited when the gun is fired. A bullet is positioned in the open end of the shell casing. The bullet is fired from the shell casing when the first propellant is ignited and the bullet is projected from the gun. A rocket unit is integrated into the bullet and the rocket unit fires when the bullet is fired from the shell casing. The rocket unit increases a velocity of the bullet when the bullet is traveling thereby increasing a range of the bullet.

The present disclosure provides a high explosive firing mechanism. The high explosive firing mechanism may comprise a housing comprising a firing pin tube having a primer inlet. The high explosive firing mechanism may further comprise a firing pin disposed within the firing pin tube, the firing pin comprising a nub. The nub may partially extend into the primer inlet.

An igniter, an ignition method and a method of assembling an ignitor are provided. In one embodiment, the igniter includes a first member having an inner surface. The igniter also includes a second member having an outer surface engaged with the inner surface when in an assembled configuration and forming a space between the inner surface and the outer surface. The igniter further includes an ignition charge disposed in the space. The second member is configured to move with respect to the first member when in the assembled configuration so as to apply a predetermined pressure, which includes a shear force and a compressive force, to the ignition charge to ignite the ignition charge. According to various embodiments, ignition of the ignition charge is improved.

An igniter, an ignition method and a method of assembling an ignitor are provided. In one embodiment, the igniter includes a first member having an inner surface. The igniter also includes a second member having an outer surface engaged with the inner surface when in an assembled configuration and forming a space between the inner surface and the outer surface. The igniter further includes an ignition charge disposed in the space. The second member is configured to move with respect to the first member when in the assembled configuration so as to apply a predetermined pressure, which includes a shear force and a compressive force, to the ignition charge to ignite the ignition charge. According to various embodiments, ignition of the ignition charge is improved.

An igniter includes a first ignition charge, a first member which has a predetermined inner surface and a second member. The second member is arranged in a state of being inserted into the first member and which has a predetermined outer surface opposed to the predetermined inner surface in an arrangement state, for forming a predetermined space to arrange the first ignition charge between the predetermined inner surface and the predetermined outer surface. When the second member is rotated with respect to the first member, then the first ignition charge is ignited in the predetermined space by means of a predetermined pressure including a shear force generated between the predetermined outer surface and the predetermined inner surface in accordance with the rotation, and a combustion product of the first ignition charge is released from an opening of the predetermined space. Accordingly, preferable ignition of the ignition charge is realized.

An igniter includes a first ignition charge, a first member which has a predetermined inner surface and a second member. The second member is arranged in a state of being inserted into the first member and which has a predetermined outer surface opposed to the predetermined inner surface in an arrangement state, for forming a predetermined space to arrange the first ignition charge between the predetermined inner surface and the predetermined outer surface. When the second member is rotated with respect to the first member, then the first ignition charge is ignited in the predetermined space by means of a predetermined pressure including a shear force generated between the predetermined outer surface and the predetermined inner surface in accordance with the rotation, and a combustion product of the first ignition charge is released from an opening of the predetermined space. Accordingly, preferable ignition of the ignition charge is realized.

Retention clips for safety mechanisms of illumination flares include an abutment surface configured for abutment of an end of a rigid sleeve coupled to an igniter initiation cable and one or more protrusions configured to extend at least partially over a lateral side surface of the rigid sleeve when the rigid sleeve is retained by the clip. Safety mechanisms, illumination flares, and methods for igniting illumination flares involve such retention clips.

Retention clips for safety mechanisms of illumination flares include an abutment surface configured for abutment of an end of a rigid sleeve coupled to an igniter initiation cable and one or more protrusions configured to extend at least partially over a lateral side surface of the rigid sleeve when the rigid sleeve is retained by the clip. Safety mechanisms, illumination flares, and methods for igniting illumination flares involve such retention clips.