Directional drill head

Details Directional drill head Directional drill head

2005-11-18

2008-08-19

Bates, Zakiya W. (Department: 3676)

Boring or penetrating the earth

Means traveling with tool to constrain tool to bore along...

Normally curved guide or shaft

C175S393000

Reexamination Certificate

active

07413033

ABSTRACT:
A drill head is shown that provides improved steering in difficult ground conditions such as dry and compacted soil. A drill head is shown with features that include a narrow front portion, a sharp hardened insert such as a carbide point, and a curved rear portion of the drill head. Angled porting of liquid is included in selected configurations of the drill head. Porting of liquid within a recess portion is included in selected configuration of the drill head.

REFERENCES:
patent: 6390087 (2002-05-01), Wentworth et al.

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