BIT Russian patent published in 1995 - IPC

Abstract RU 2026951 C1

FIELD: mining. SUBSTANCE: bit body is made in form of tube. Plate is installed to separate the tube sectional area into segments. Plate may be installed parallel to tube axis behind the diametrical plane. Plate may be pointed in its upper part. In width the plate may be larger than tube outer diameter. Plate may be installed at angle to tube axis. Front face of plate is located on the side of tube upper end. Plate front face adjoins tube inner surface. EFFECT: higher efficiency. 3 cl, 4 dwg

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RU 2 026 951 C1

Authors

Popov A.N.

Dates

1995-01-20—Published

1991-04-01—Filed