Patent classifications
F42C15/184
Detonator system for hand grenades
The invention relates to a detonator system for hand grenades, having an ignition element (1) which after initiation triggers a delay and safety device, which, with a time delay after the initiation, fires a detonator (7), which then ignites an ignition booster (8), wherein the delay and safety device includes a dual safety device of two independent parts. So that the hand grenade detonator system according to the invention includes a purely pyrotechnic detonator system instead of a pyrotechnic-mechanical system, it is suggested that the delay and safety device consists of two pyrotechnic ignition delay devices with different delay timesspecifically a safety element (3) and a delay element (4)wherein the delay time of the safety element (3) is shorter than the delay time of the delay element (4), and the safety element (3) includes a timing composition which, once it has burned through, ignites a gas charge (9), the gas of which opens blocking elements (5), and the delay element (4) includes a firing charge, and the firing charge is only in operative connection with the detonator (7) after the opening of the blocking elements (5).
Detonator system for hand grenades
The invention relates to a detonator system for hand grenades, having an ignition element (1) which after initiation triggers a delay and safety device, which, with a time delay after the initiation, fires a detonator (7), which then ignites an ignition booster (8), wherein the delay and safety device includes a dual safety device of two independent parts. So that the hand grenade detonator system according to the invention includes a purely pyrotechnic detonator system instead of a pyrotechnic-mechanical system, it is suggested that the delay and safety device consists of two pyrotechnic ignition delay devices with different delay timesspecifically a safety element (3) and a delay element (4)wherein the delay time of the safety element (3) is shorter than the delay time of the delay element (4), and the safety element (3) includes a timing composition which, once it has burned through, ignites a gas charge (9), the gas of which opens blocking elements (5), and the delay element (4) includes a firing charge, and the firing charge is only in operative connection with the detonator (7) after the opening of the blocking elements (5).
OFF-ON EXPLOSIVE WARHEAD FOR HIGH ENERGY FORMULATIONS WITH TAILORABLE OUTPUT PERFORMANCE
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.
OFF-ON EXPLOSIVE WARHEAD FOR HIGH ENERGY FORMULATIONS WITH TAILORABLE OUTPUT PERFORMANCE
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.
Active hazard mitigation device
An active hazard mitigation device includes a reservoir containing thermal wax and a slider translatable from a safe position to an armed position. A conduit for flow of the thermal wax in a melted state extends from the thermal wax reservoir to a rear of the safe position of the slider. A BKNO.sub.3 pellet is disposed in a forward end of the slider. A lithium intermetallic thermal sensor is disposed adjacent the BKNO.sub.3 pellet when the slider is in an armed position. When the thermal wax expands, the slider moves from the safe position to the armed position under the lithium intermetallic thermal sensor. When the lithium intermetallic thermal sensor activates, heat from the lithium intermetallic thermal sensor ignites the BKNO.sub.3 pellet in the slider and thereby produces gas and heat that ignites energetic material disposed proximate to the BKNO.sub.3 pellet.
Active hazard mitigation device
An active hazard mitigation device includes a reservoir containing thermal wax and a slider translatable from a safe position to an armed position. A conduit for flow of the thermal wax in a melted state extends from the thermal wax reservoir to a rear of the safe position of the slider. A BKNO.sub.3 pellet is disposed in a forward end of the slider. A lithium intermetallic thermal sensor is disposed adjacent the BKNO.sub.3 pellet when the slider is in an armed position. When the thermal wax expands, the slider moves from the safe position to the armed position under the lithium intermetallic thermal sensor. When the lithium intermetallic thermal sensor activates, heat from the lithium intermetallic thermal sensor ignites the BKNO.sub.3 pellet in the slider and thereby produces gas and heat that ignites energetic material disposed proximate to the BKNO.sub.3 pellet.
Safe and arm mechanisms and methods for explosive devices
A SAFE and ARM mechanism includes an elongated casing having a first end and a second end. A high-G force firing pin is arranged relatively near to the first end and a low-G force firing pin is arranged relatively near to the second end. A detonator is arranged between the high-G force firing pin and the first end. When a G-force within a first range of magnitudes is applied to the casing along its longitudinal axis, the low-G force firing pin is displaced to strike a portion of the high-G force firing pin, and if a G-force within a second range of magnitudes is applied to the casing along its longitudinal axis, the high-G force firing pin is displaced to strike the detonator. The device may become ARMED in response to a centrifugal force generated by spinning the casing on its longitudinal axis.
Safe and arm mechanisms and methods for explosive devices
A SAFE and ARM mechanism includes an elongated casing having a first end and a second end. A high-G force firing pin is arranged relatively near to the first end and a low-G force firing pin is arranged relatively near to the second end. A detonator is arranged between the high-G force firing pin and the first end. When a G-force within a first range of magnitudes is applied to the casing along its longitudinal axis, the low-G force firing pin is displaced to strike a portion of the high-G force firing pin, and if a G-force within a second range of magnitudes is applied to the casing along its longitudinal axis, the high-G force firing pin is displaced to strike the detonator. The device may become ARMED in response to a centrifugal force generated by spinning the casing on its longitudinal axis.
Tunable safe and arming devices and methods of manufacture
A projectile with a safe and arming device includes a tunable setback arming mechanism with an arming slider constrained and guided within a slider frame. The arming slider and slider frame cooperating to have a first safe position, a second intermediate position, and a third armed position. Components, such as the arming slider are manufactured by electronic discharge machining (EDM) to provide preforms on a work piece that can be further processed and ultimately assembled into tunable setback arming mechanisms. Various desired operating characteristics of the setback arming mechanism may be provided by adjusting and/or selecting specific parameters in the arming slider and readily adjusting same through machining and heat treating.
Tunable safe and arming devices and methods of manufacture
A projectile with a safe and arming device includes a tunable setback arming mechanism with an arming slider constrained and guided within a slider frame. The arming slider and slider frame cooperating to have a first safe position, a second intermediate position, and a third armed position. Components, such as the arming slider are manufactured by electronic discharge machining (EDM) to provide preforms on a work piece that can be further processed and ultimately assembled into tunable setback arming mechanisms. Various desired operating characteristics of the setback arming mechanism may be provided by adjusting and/or selecting specific parameters in the arming slider and readily adjusting same through machining and heat treating.