Method and apparatus for wet/dry, small bore hole explosive devi

Details Method and apparatus for wet/dry, small bore hole explosive devi Method and apparatus for wet/dry, small bore hole explosive devi

1992-11-09

1993-11-09

Nelson, Peter A.

Ammunition and explosives

Blasting

Patterned blasting

102313, 102319, 102321, 102323, 102324, F42B 300

Patent

active

052593169

ABSTRACT:
A wet/dry explosive assembly for use with small diameter bore holes is disclosed. The device utilizes a small diameter watertight inner containment vessel to house a predetermined amount of blasting agent, such as ammonium nitrate with fuel oil (AN/FO). A rigid stiffener material surrounds the inner containment vessel and extends the length of an outer containment vessel. The outer containment vessel is of sufficient length and diameter to accommodate the inner containment vessel, the stiffener material and the blast detonation components necessary for proper detonation. The device is designed to accommodate bore holes of one inch (1") to three inches and one half (3.5") in diameter and up to one hundred feet (100') in length.

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patent: 4898066 (1990-02-01), Marz
patent: 5105743 (1992-04-01), Tano et al.

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