Impact excavation system and method with particle trap
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United States of America Patent
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Jul 15, 2008
Grant Date -
Aug 17, 2006
app pub date -
Aug 16, 2005
filing date -
Apr 16, 2003
priority date (Note) -
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Abstract
A system and method for excavating a subterranean formation, according to which a slurry of liquid and a plurality of impactors are introduced into at least one cavity formed in a body member and are discharged from the cavity so that the impactors remove a portion of the formation. The impactors are separated from at least a portion of the fluid and the materials removed from the formation, so that the impactors can be reused.
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