Drive point device

Details Drive point device Drive point device

1995-04-05

1996-11-05

Tsay, Frank

Boring or penetrating the earth

Boring without earth removal

Combined with earth removal

175 22, 166157, E21B 720

Patent

active

055707475

ABSTRACT:
Described is a device for driving into the ground which includes a drive point, a fluid passage section, an annular seal and an annular drive rod. The annular seal is the widest member and fits snugly in a borehole formed after the device is driven into the ground to form a seal. Specially configured drive points are also described.

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