Cast explosive primer initiatable by low-energy detonating cord

Ammunition and explosives – Igniting devices and systems – Fuse cord

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Details

1022754, 1022757, 10227512, 102318, F42B 310, C06C 504

Patent

active

047762764

ABSTRACT:
An explosive primer unit in which the degree of energy coupling between a low-energy detonating cord (LEDC) and an explosive coupling element in a cast explosive primer is maximized; the unit contains (a) a substantially cylindrical charge of cast explosive having a perforation therein aligned substantially parallel to the charge's cylindrical axis, and sized to slidably receive a length of LEDC and (b) embedded in the cast explosive charge along the LEDC-receiving perforation, an explosive coupling element containing a shock-sensitive high-velocity detonating explosive having a tubular body having a wall that surrounds, and a bore that forms, the LEDC-receiving perforation over at least a portion of the perforation's length, the size of the bore of the coupling element's tubular body that forms the LEDC-receiving perforation in the cylindrical charge of cast explosive closely matching the outer diameter of a length of LEDC to be received therein.

REFERENCES:
patent: Re30621 (1981-05-01), Calder et al.
patent: 3747527 (1973-07-01), Griffith
patent: 4165691 (1979-08-01), Bowman et al.
patent: 4295424 (1981-10-01), Smith et al.
patent: 4383484 (1983-05-01), Morrey
patent: 4425849 (1984-01-01), Jorgenson
patent: 4637312 (1987-01-01), Adams et al.

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