Cartridge for generating high-pressure gases in a drill hole
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United States of America Patent
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Jun 16, 1998
Issued Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Jun 5, 1992
priority date (Note) -
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Abstract
The present invention is directed to a cartridge for use in fracturing materials, such as rock. The cartridge includes a base member, a body member, a propellant, and a device for sealing a surface of the cartridge to the surface of a hole in the material. Upon ignition of the propellant, gas pressure rapidly rises in the hole due to the sealing device. The gas pressure causes the material to form a penetrating cone fracture. Various cartridge configurations are presented depending upon the specific needs of each application.
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