Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent
1997-07-16
1999-03-16
Schoeppel, Roger
Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
175431, E21B 1000
Patent
active
058818294
ABSTRACT:
An earth-boring bit has a bit body with at least one bearing shaft depending inwardly and downwardly therefrom. A cutter is mounted for rotation on each bearing shaft and has a cutter shell surface and a plurality of cutting elements arranged on the shell surface in generally circumferential rows. At least one row of cutting elements includes at least one reduced-projection cutting element disposed between adjacent cutting elements. The row with the reduced-projection element is an inner row, but may include heel rows as well.
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Buechler Benton Jay
Dimond Carl Edward
Baker Hughes Incorporated
Bradley James E.
Schoeppel Roger
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