Quick change drill bit
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United States of America Patent
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Jun 21, 2005
Grant Date -
N/A
app pub date -
Nov 6, 2002
filing date -
Nov 6, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A quick-change core drill includes an adapter and a generally tubular drill barrel. The adapter comprises a first end adapted to be removably connected to a drill spindle and a second end adapted to be removably connected to the drill barrel. The drill barrel includes an inside diameter D1, a first end, and a second end having a crown with an inside diameter D3. The first end of the drill barrel is adapted to be removably connected to the second end of the adapter such that the inside diameter D1 is at least as large as the inside diameter D3. Upon detection of a jammed core inside the drill barrel, the user can quickly and easily remove the jammed core from the drill barrel by disconnecting the drill barrel from the adapter. Since there are no obstructions present, the user can simply remove the jammed core from the first end of the drill barrel.
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