Self-stemming cartridge
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United States of America Patent
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Jan 1, 2013
Grant Date -
Nov 4, 2010
app pub date -
Oct 17, 2007
filing date -
Oct 19, 2006
priority date (Note) -
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Abstract
A cylindrical casing (18) has first and second ends (33 and 31), the first end (33) being closed. The casing (18) encloses an accelerant (22) disposed adjacent the first end (33), at least one stemming mechanism (21), and a fuse (14 or 14′) extending from the accelerant (22) out of the second end (31) of the cylindrical casing (18). The cartridge (12) is made of a rupturable cylindrical casing (18) with accelerant (22) and self-stemming mechanism (22) inserted therein. A method of breaking hard (R) materials involves detonating a self-stemming cartridge (12) disposed in a borehole (B).
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