Rock bit with channel structure for retaining cutter segments

Details Rock bit with channel structure for retaining cutter segments Rock bit with channel structure for retaining cutter segments

2006-04-11

2006-04-11

Thompson, Kenneth (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Plural separable cutter elements

C175S373000, C175S432000, C076S108200

Reexamination Certificate

active

07025155

ABSTRACT:
A roller cone body defines a circumferential channel or race into which a plurality of cutter or wear segments are mounted. The wear segments may be of any appropriate contour or shape, such as for example chisel, spherical, or even flat face and are preferably made or carbide. The wear elements may be all the same within a channel or race, or they may be varied within a race as needed for a particular application.

REFERENCES:
patent: 1143275 (1915-06-01), Hughes
patent: 3599737 (1971-08-01), Fischer
patent: 3981370 (1976-09-01), Bingham et al.
patent: 4838366 (1989-06-01), Jones
patent: 5421423 (1995-06-01), Huffstutler
patent: 5454437 (1995-10-01), Estes
patent: 6167975 (2001-01-01), Estes
patent: 6435287 (2002-08-01), Estes
patent: 6823951 (2004-11-01), Yong et al.

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