Tool member for a rotary drilling tool

Details Tool member for a rotary drilling tool Tool member for a rotary drilling tool

1984-10-16

1987-01-20

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Tooth mounted on helical head portion or head with helical...

299 90, 175378, E21B 1016

Patent

active

046376593

ABSTRACT:
A toothed tool body for a rotary drilling tool suitable not only for work normally performed with toothed roller bits or the like, but also advantageous in loamy or similar formations, has ribs extending peripherally between the teeth up to the tooth flanks and having a cross-section falling on both sides from a peak region, more particularly a roof-like cross-section. The peak region of the ribs is lower than the tips or edges of the teeth in the radial direction of the tool body.

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patent: 3358782 (1967-12-01), Bechem
patent: 4068688 (1978-01-01), Benson

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