Device for sealing a drill hole and for discharging drillings or stripped extraction material
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United States of America Patent
Stats
-
Mar 14, 2006
Grant Date -
Aug 14, 2003
app pub date -
May 15, 2001
filing date -
May 17, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
In a device for sealing a bore hole and discharging drill cuttings and stripped excavation material, including a housing adapted to receive sealing elements and an opening capable of being connected to the bore hole, one side wall of the housing is provided with at least one opening for the connection of a haulage duct, wherein the housing end side facing the bore hole is equipped with a lockable, particularly screwable, sealing flange (13) for the detachable connection with a bore hole lining (11). The sealing flange (13) is rotationally and sealingly mounted within the housing and carries projections, in particular an annular brim (15) which is overlapped by a stop (14) of the housing.
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