Drilling system and method of using same
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United States of America Patent
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Apr 16, 2024
Grant Date -
Feb 9, 2023
app pub date -
Oct 20, 2022
filing date -
Oct 20, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A drilling system having retractable wings and method of using same. The system includes at least one wing, which can extend from the system once it engages in a casing and abuts against an abutment ring at the bottom end of the casing. When the system starts drilling a hole into the ground, the casing is installed down the hole. In one configuration, the at least one wing is at least partially retracted into the drilling system and locked in this position. In another configuration, the at least one wing extends from the drilling system and locks into an extended position. The system can be connected to a down-the-hole hammer, a top-hammer drilling rod, or any other suitable rock drilling tool/apparatus, and can be used with a single and a dual rotary drilling tool/apparatus.
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