Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent
1995-01-03
1997-06-10
Bagnell, David J.
Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
761084, 175374, 175431, F21B 1016, F21B 1050
Patent
active
056367007
ABSTRACT:
A roller cone rock bit (10) is provided that has improved cutter cone gauge face surface compacts. The roller cone rock bit (10) includes a bit body (12) having at least one downwardly extending arm (28) terminating in a spindle (30). A cutter cone (20) has a gauge face surface (24) and has a plurality of holes (45) formed in the gauge face surface (24). Each hole (45) in the plurality of holes has an axis (52) oriented at an acute angle with respect to the gauge face surface (24). A bearing assembly (32, 34 and 36) is disposed between the spindle (30) and the cutter cone (20) for rotary load-bearing engagement. A plurality of compacts (22) are disposed in the plurality of holes (45). Each compact (22) is oriented at an acute angle with respect to the gauge face surface (24) according to the axis (52) of each hole (45).
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Correspondence to Customers, MEGAdiamond, Megadiamond Announces a Unique Service, Oct. 6,1981 (4 pgs.).
"Kor King" Diamant Boart Stratabit, 1988.
"readily available fluid . . . " (No date).
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Bagnell David J.
Dresser Industries Inc.
LandOfFree
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