DRILLING BIT FOR CUTTING AND CHOPPING ACTION Russian patent published in 1996 - IPC

Abstract RU 2065918 C1

FIELD: rock crushing tools. SUBSTANCE: drilling bit shank has several passages located symmetrically relative to shank axis. Outlet parts of passages are inclined to horizontal plane so that projections of their axes to this plane are tangential to circumference symmetrical relative to shank axis and are directed opposite to direction of bit rotation. EFFECT: high efficiency. 2 dwg

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RU 2 065 918 C1

Authors

Ishbaev G.G.

Baluta A.G.

Akchurin Kh.I.

Alekseev L.A.

Tashbulatov R.F.

Khusainov M.M.

Dates

1996-08-27—Published

1994-08-03—Filed