Drilling device and drilling method utilizing dual drives

Boring or penetrating the earth – With means to feed drive

Reexamination Certificate

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Details

C175S162000

Reexamination Certificate

active

07905300

ABSTRACT:
The invention relates to a drilling device and a related drilling method, in which provision is made for a mast, a drilling carriage that is guided along the mast in a displaceable manner and a drive unit for moving the drilling carriage on the mast. In accordance with the invention the drive unit has both a hydraulic cylinder drive and a rope winch drive. The drilling carriage can be coupled with the hydraulic cylinder drive and with the rope winch drive.

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