Drilling apparatus and method
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United States of America Patent
Stats
-
Oct 28, 2003
Grant Date -
May 29, 2003
app pub date -
Nov 26, 2001
filing date -
Nov 26, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides a drilling apparatus and method for drilling a hole in a workpiece. The drilling apparatus includes means for rotating a drill bit and means for advancing the rotating drill bit into a workpiece to a first depth. The drilling apparatus further includes means for dwelling the drill bit within the workpiece at the first depth for a dwell time and means for further advancing the rotating bit to a second depth after the dwell time has expired. The drilling method includes rotating a drill bit and advancing the rotating drill bit into the workpiece to a first depth. The method farther includes dwelling the drill bit within the workpiece at the first depth for a dwell time and further advancing the rotating bit to a second depth after the dwell time has expired.
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