Steel body rotary drill bits including support elements...

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Reexamination Certificate

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Details

C175S428000

Reexamination Certificate

active

07070011

ABSTRACT:
A steel body rotary drag bit for drilling a subterranean formation includes a plurality of support elements affixed to the bit body, each forming at least a portion of a cutting element pocket. Each of a plurality of cutting elements has a substantially cylindrical body and is at least partially disposed within a cutter pocket. At least a portion of the substantially cylindrical body of each cutting element is directly secured to at least a portion of a substantially arcuate surface of the bit body. At least a portion of a substantially planar surface of each cutting element matingly engages at least a portion of a substantially planar surface of a support element.

REFERENCES:
patent: 4014395 (1977-03-01), Pearson
patent: 4199035 (1980-04-01), Thompson
patent: 4200159 (1980-04-01), Peschel et al.
patent: 4271917 (1981-06-01), Sahley
patent: 4334585 (1982-06-01), Upton
patent: 4351401 (1982-09-01), Fielder
patent: 4382477 (1983-05-01), Barr
patent: 4453605 (1984-06-01), Short, Jr.
patent: 4505342 (1985-03-01), Barr et al.
patent: 4529048 (1985-07-01), Hall
patent: 4538690 (1985-09-01), Short, Jr.
patent: 4553615 (1985-11-01), Grainger
patent: 4782903 (1988-11-01), Strange
patent: 4877096 (1989-10-01), Tibbitts
patent: 5007493 (1991-04-01), Coolidge et al.
patent: 5056382 (1991-10-01), Clench
patent: 5213171 (1993-05-01), Clench et al.
patent: 5279375 (1994-01-01), Tibbitts et al.
patent: H001566 (1996-08-01), Azar
patent: 5558170 (1996-09-01), Thigpen et al.
patent: 5678645 (1997-10-01), Tibbitts et al.
patent: 5890552 (1999-04-01), Scott et al.
patent: 5906245 (1999-05-01), Tibbitts et al.
patent: 6302224 (2001-10-01), Sherwood, Jr.
patent: 2084219 (1982-04-01), None

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