Method of and apparatus for breaking rock
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United States of America Patent
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-
May 6, 2008
Grant Date -
Jun 23, 2005
app pub date -
Jul 1, 2004
filing date -
Jan 3, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus for breaking rock includes a cartridge with a base and a wall which extends from the base, the base and the wall forming an enclosure, a propellant inside the enclosure and means for igniting the propellant, and wherein at least the wall is made from a malleable material adapted to reinforce the wall of a hole in the rock in which the cartridge is located.
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