The invention proposes the design of a pyrotechnic initiator applied in the aerospace field, including three main components: the housing, the burning bridge and the pyrotechnic dose. The housing has a protective effect and increases the power of the pyrotechnic dose, in which the number of threads and the thread length are calculated to ensure to withstand the fire pressure. The burning bridge generates heat to ignite the ignition dose, the diameter of the bridge is calculated to ensure the resistance of the burning bridge. The pyrotechnic dose consists of 3 ingredient doses, which are the ignition dose, the intermediate dose, and the fire-boosting dose. In which, the mass, composition and density of the doses are calculated to ensure that the required working pressure is created.

A glass-metal feedthrough consists of an external conductor, a glass material and an internal conductor. The internal conductor has a coefficient of expansion α.sub.internal, the glass material has a coefficient of expansion α.sub.glass, and the external conductor has a coefficient of expansion α.sub.external. The coefficient of expansion of the internal conductor α.sub.internal is greater than the coefficient of expansion of the glass material α.sub.glass and the coefficient of expansion of the external conductor α.sub.external is at least 2 ppm/K, such as at least 4 ppm/K, greater than the coefficient of expansion of the glass material α.sub.glass in the temperature range of 20° C. to the glass transformation temperature.

A downhole tool includes a plurality of mechanical components with some that move relative to others. The tool includes an annular charge cannister associated with the plurality of mechanical components that delivers a gas to move mechanical components. The annular charge cannister includes an annular chamber having a back wall, an interior sidewall, an exterior sidewall, and an open side opposite the back wall. The back wall and the interior sidewall and exterior sidewall form an interior space, and a power charge is disposed within the interior space of the annular chamber. An annular lid is sized and configured to mate with the open side of the annular chamber. The charge cannister may include an ignition port formed in the annular lid for receiving an igniter.

A downhole tool includes a plurality of mechanical components with some that move relative to others. The tool includes an annular charge cannister associated with the plurality of mechanical components that delivers a gas to move mechanical components. The annular charge cannister includes an annular chamber having a back wall, an interior sidewall, an exterior sidewall, and an open side opposite the back wall. The back wall and the interior sidewall and exterior sidewall form an interior space, and a power charge is disposed within the interior space of the annular chamber. An annular lid is sized and configured to mate with the open side of the annular chamber. The charge cannister may include an ignition port formed in the annular lid for receiving an igniter.

A system for a molded power charge with secondary pellet at each end. The molded power charge includes a solid outer wall which extends for the length. The solid outer wall has a first end and a second end. The power charge further includes a secondary pellet at each end. The first end and the second end of the outer wall include a secondary pellet with an exposed face. This allows the power charge to be ignited from either end.

A system for a molded power charge with secondary pellet at each end. The molded power charge includes a solid outer wall which extends for the length. The solid outer wall has a first end and a second end. The power charge further includes a secondary pellet at each end. The first end and the second end of the outer wall include a secondary pellet with an exposed face. This allows the power charge to be ignited from either end.

An insensitive munition initiation canister includes a first cylindrical body having an external surface, which includes a first set of threads arranged circumferentially around the first cylindrical body, and a second cylindrical body connected to the first cylindrical body including an external surface having a second set of threads arranged circumferentially around the second cylindrical body. The first cylindrical body includes a first internal region set to retain an explosive charge having a detonation capability sufficient to detonate an insensitive munition. The first cylindrical body is set to sit inside a munition fuze well. The threads of the first cylindrical body are set to engage the munition fuze well.

An insensitive munition initiation canister includes a first cylindrical body having an external surface, which includes a first set of threads arranged circumferentially around the first cylindrical body, and a second cylindrical body connected to the first cylindrical body including an external surface having a second set of threads arranged circumferentially around the second cylindrical body. The first cylindrical body includes a first internal region set to retain an explosive charge having a detonation capability sufficient to detonate an insensitive munition. The first cylindrical body is set to sit inside a munition fuze well. The threads of the first cylindrical body are set to engage the munition fuze well.

The present invention relates to a platform for testing collisions or near-collision situations between a collision body, in particular a vehicle, and a test object. The platform has a base body, which has a bottom surface and an attachment surface formed opposite to the bottom surface, wherein an attachment device is formed on the attachment surface for attaching the test object. Furthermore, the platform has at least one roller element, which is arranged at the bottom surface, wherein the roller element is configured such that the base body is displaceable along a ground by the roller element. The base body is formed of an elastically deformable material having a thickness of less than 2500 kg/m.sup.3.

An opto-thermal laser detonator uses resonantly absorptive tuned nano-material associated with secondary explosives for optical absorption and initiation by an integral laser diode. The opto-thermal laser detonator includes main explosive material; resonantly absorptive tuned nano-material; secondary explosive material, wherein the resonantly absorptive tuned nano-material and the secondary explosive material are associated to form associated material made of the resonantly absorptive tuned nano-material and the secondary explosive material; and a laser diode operatively connected to the associated material, wherein the laser diode initiates the associated material which in turn initiates the main explosive material.