Rock drill bit

Details Rock drill bit Rock drill bit

1989-11-14

1991-07-09

Dang, Hoang C.

Boring or penetrating the earth

Bit or bit element

With fluid conduit lining or element

175415, 175417, E21B 1038, E21B 1060

Patent

active

050296574

ABSTRACT:
A rock drill bit for continuous drilling through overburden and rock has a body with end and side surfaces. The drill bit is constructed for rotation in a predetermined direction. The body defines a conduit for compressed air which terminates at a port in the side surface of the body. The port is disposed to open in a direction facing generally away from the predetermined direction of rotation of the drill bit.

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