Safety Priming Device for Rotating Ammunition
AssigneeJunghans T2M SAS
InventorJean-Luc Renaud-Bezot
Life of this patent
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Abstract
An ammunition safety priming device using silicon micro-mechatronic systems technology, having at least two priming safeties intended to be deactivated by as many external independent physical events, includes at least one movable element, along a translation axis, for deactivating at least one of the priming safeties by action on said movable element of one of the physical events. Said movable element is produced in a material other than silicon. The device has applications including ammunition, rocket stage separation devices, and airbags.
Claims9
An ammunition safety priming device using silicon micro-mechatronic systems technology having at least two priming safeties intended to be deactivated by as many external independent physical events, comprising at least one movable element, along a translation axis, for deactivating at least one of the priming safeties by action on said movable element of one of the physical events, the movable element being an inertial screw forming a first safety, the physical event acting on the movable element being an axial acceleration force along said translation axis EE′ of the movable element for deactivating the first safety, the axial acceleration force being caused by a translation movement of the ammunition along the same translation axis, further comprising:
- a central element held in a sandwich, along a plane S perpendicular to the translation axis between an upper closure element and a lower closure element, the central element having an opening forming with the upper closure element and lower closure element a recess containing a slide that can slide in the recess in the plane S of the sandwich, the slide forming a second device safety, this second safety being deactivated by the presence of a lateral acceleration force (Accl) perpendicular to the translation axis of the movable element caused by a rotation movement of said ammunition, the slide including a hole, with an axis VV′ perpendicular to the plane S of the sandwich, the slide being kept in position in the recess by the inertial screw inserted in the hole of the slide, the inertial screw being itself integral with the lower closure element.
Dependencies are inferred from the claim text.