Method and device for drilling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 25, 2000
Grant Date -
N/A
app pub date -
Feb 26, 1998
filing date -
Aug 28, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods and devices are provided for drilling with impregnated diamond drill bits in which the drill bit (30) automatically continues cutting. The speed of a drilling device (3) along a feed device (2) is determined, and the measured value is used for continuously controlling the feed cylinder (10) and a flushing medium pump (29) such that a substantially constant feed rate is achieved while simultaneously maintaining the rotational speed of the drill bit (30) within predetermined limits.
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