Inserts for drilling bits

Details Inserts for drilling bits Inserts for drilling bits

1980-06-05

1982-06-15

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175410, E21B 1016, E21B 1056

Patent

active

043345867

ABSTRACT:
Inserted hard metal cutting elements are disclosed which are advantageous for inserting into the cutters of drilling bits used in drilling underground formations. The inserted cutting elements comprise asymmetrical inserts placed in at least one row of a cutter in alternating alignment circumferentially therearound.

REFERENCES:
patent: 3385385 (1968-05-01), Kucera et al.
patent: 4058177 (1977-11-01), Langford et al.
patent: 4086973 (1978-05-01), Keller et al.
patent: 4108260 (1978-08-01), Bozarth

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