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US 4,744,298 AGranted
Safing and arming device and method
OwnerDragolyoub Popovitchinventor
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OwnerDragolyoub Popovitchinventor
Estimating the term…
A safing and arming device mounted inside the shell of small caliber ammunition for normally forming a barrier between a detonator and an explosive train contained in the shell. A soft wire of lead, aluminum or plastic material, embedded in a groove in the top of the barrier normally holds it against movement. As the result of high spin, the barrier is forced to move so as to open a path between said detonator and explosive train to enable arming after a safe delay. The barrier may be two halves tied together by the soft wire of stretchable material which will slowly stretch as the result of high spin and ultimately break, allowing the halves to move apart radially to open the path. A modification of the barrier is to normally position it eccentrically of the center of gravity, at which location it forms a barrier. High spin will effect cutting of the wire and movement of the barrier to a non-blocking position.
Safing and arming means for mounting inside the shell of small caliber ammunition for normally forming a barrier between a detonator and an explosive train contained in said shell, said barrier comprising two halves held together by a wire of soft stretchable material which will slowly stretch and ultimately break, allowing said halves to move apart radially as the result of high spin and resulting centrifugal forces, enabling arming after a safe delay.
Safing and arming means for mounting inside the shell of small caliber ammunition for normally forming a barrier between a detonator and an explosive train contained in said shell, a set of two fingers normally holding said barrier against movement, said barrier being radially moveable as the result of high spin, and means for severing said two fingers as a consequence of high spin to enable arming after a safe delay.
Safting and arming means for mounting inside the shell of small caliber ammunition for normally forming a barrier between a detonator and an explosive train contained in said shell, a carrier comprising a cup-shaped bottom on the trailing end of a projectile and an inverted cup-shaped cover on the leading end thereof, said bottom and cover having coaxial central holes, a safing and arming stationary carrier block closely fitted between said bottom and cover and provided with an opening segment extending through less than 180 degrees of said bottom and cover so as to remain stationary therebetween, a radially movable barrier fitted in said opening and normally blocking said holes, said bottom having a cut out portion that is yieldable toward the trailing end as the result of setback which engages a notch at the bottom surface of said movable barrier, such that in response to a predetermined setback, said yieldable portion will unseat from said notch and allow said movable barrier to move radially outwardly as the result of spin;
Dependencies are inferred from the claim text.