Oil well drilling bit

Details Oil well drilling bit Oil well drilling bit

1981-05-18

1983-12-13

Leppink, James A.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175376, 175378, E21B 1016

Patent

active

044200501

ABSTRACT:
An oil well drilling bit is disclosed of the type utilizing hard metal inserts in the rolling cutters wherein each row of inserts on each cutter is located thereon in a sinusoidal or varying pattern rather than the strictly circumferential pattern of the prior art.

REFERENCES:
patent: 2122759 (1938-07-01), Scott
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patent: 2749093 (1956-06-01), Peter
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patent: 2990025 (1961-06-01), Talbert et al.
patent: 3385385 (1978-05-01), Kucera et al.
patent: 3696876 (1972-10-01), Ott
patent: 3727705 (1973-04-01), Neuman
patent: 3952815 (1978-05-01), Dysart
patent: 4108260 (1978-08-01), Bozarth

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