Mining drill

Details Mining drill Mining drill

1982-02-08

1984-02-28

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

Plural separable cutter elements

175418, E21B 1062

Patent

active

044337396

ABSTRACT:
In a mine tool having a drive body, an insert is detachably held to the drive body in a slot formed by forwardly projecting flanges.

REFERENCES:
patent: 1106966 (1914-08-01), Pauli
patent: 1318958 (1919-10-01), Bernay
patent: 2246447 (1941-06-01), Maclean
patent: 3434552 (1969-03-01), Bower, Jr.
patent: 3434553 (1969-03-01), Weller

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