Rock boring bit with novel teeth and geometry

Details Rock boring bit with novel teeth and geometry Rock boring bit with novel teeth and geometry

1981-04-01

1983-07-19

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175378, 175376, E21B 1016

Patent

active

043939481

ABSTRACT:
A rock boring bit assembly which includes a body configured for engagement with associated driving mechanism. At least one roller cutter is rotatably mounted on the body. The roller cutter includes a plurality of cutting member disposed about the entire face or surface thereof in generally upstanding relationship. The cutting members are arrayed over the roller cutter surface with no channel between adjacent arrays of cutting members. The cutters have generally rectilinear edges and each of the edges is disposed in substantially oblique relationship to a plurality of other rectilinear edges of other cutting members disposed proximate thereto.

REFERENCES:
patent: 1856627 (1932-05-01), Fletcher
patent: 1885085 (1932-10-01), Dalzen
patent: 2038386 (1936-04-01), Scott et al.
patent: 2177332 (1939-10-01), Reed
patent: 2216938 (1940-10-01), Crum
patent: 4202419 (1980-05-01), Youngblood

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