Diamond cutters having modified cutting edge geometry and drill

Details Diamond cutters having modified cutting edge geometry and drill Diamond cutters having modified cutting edge geometry and drill

1992-06-05

1995-08-01

Britts, Ramon S.

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175434, E21B 1046

Patent

active

054373433

ABSTRACT:
A diamond cutting element including a substantially planar diamond table having a periphery defined by a multiple chamfer. The angle of the outermost chamfer may be oriented to provide a bearing surface on the cutting element at the place of engagement with the formation being drilled.

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patent: 4682663 (1987-07-01), Daly et al.
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patent: 4858707 (1989-08-01), Jones et al.
patent: 4987800 (1991-01-01), Gasan et al.
patent: 5016718 (1991-05-01), Tandberg
patent: 5131481 (1992-07-01), Smith
Grandia, et al, Diamond Tool-Tip for Ultrasonic Drilling, IBM Technical Disclosure Bulletin, vol. 13. No. 11, Apr. 1971, p. 3285.

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