Drilling unit
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Apr 16, 2024
Grant Date -
Sep 22, 2022
app pub date -
Aug 25, 2020
filing date -
Aug 25, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A drilling unit for drilling a hole, wherein the drilling unit comprising a drilling head (1). Said drilling head (1) further comprising pulling means (2) for pulling a casing (7) into the hole, a pilot bit (3) for drilling a center hole, connecting means and a ring bit assembly (4) for reaming the center hole for the casing (7). Said ring bit assembly (4) being connected to said pilot bit (3) by the connecting means and to said casing (7) by the pulling means (2). Said ring bit assembly (4) comprising a carrier (5) comprising carrier coupling means (23) and a plurality of ring bit segments (6) movably attached to said carrier coupling means (23).
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