Ammunition and explosives – Igniting devices and systems
Patent
1978-09-11
1980-12-23
Brown, David H.
Ammunition and explosives
Igniting devices and systems
102 216, 403100, 403292, 403341, F42B 302
Patent
active
042403499
ABSTRACT:
A foldable linear explosive charge (FLEC) comprising a plurality of similar tubular members which are hinged to each other at their ends so that they can be extended co-linearly to form a long tubular member or can be hinged and relatively rotated 180.degree. from each other to form a zig-zag folded system suitable for transport or storage. While in extended form, with the tubular members co-linear, they are wound with a helix of linear explosive compound (LEC). At the joints between each pair of tubular members, the LEC passes directly over the hinge, so when that joint is rotated from closed (folded) to open (linear) position, the explosive member is not moved, except for a rotation, in which it returns from a slight torsion. The FLEC is carried in a container in the folded condition and when it is to be inserted into a drilled shot hole, each successive pair of sticks is unfolded into a co-linear position and lowered into the shot hole.
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Brown David H.
Silverman Daniel
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