Drill bit with detachable bit head
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 1, 2022
Grant Date -
Jul 16, 2020
app pub date -
Jul 17, 2018
filing date -
Jul 17, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A drill bit assembly for fluid-operated percussion drill tools. The assembly comprises a percussion bit comprising a bit head detachably connected to an axially extending shank and engagement means formed on an external wall of the shank engageable with complementary engagement means formed internally of a drive chuck whereby rotational drive from the chuck may be transmitted to the shank. At least one flushing channel extends between the external wall of the bit shank and a cutting face of the bit head, to provide a fluid path for a flushing medium between the external wall of the bit shank and the cutting face of the bit head.
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