Hydro-percussive mechanisms for drilling systems
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United States of America Patent
Stats
-
Mar 6, 2012
Grant Date -
May 27, 2010
app pub date -
Nov 23, 2009
filing date -
Nov 26, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A down-the-hole assembly includes a housing assembly having a head end and a bit end. The housing assembly further includes an inlet joint having an inlet channel defined therein, a sealing portion positioned toward the bit end relative to the inlet joint, and an outlet portion positioned toward the bit end relative to the sealing portion. A hammer assembly including a piston has a piston channel defined therein that includes an inlet in fluid communication with the inlet channel and an outlet in fluid communication with the housing assembly.
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