Conical inserts for rolling cone rock bits

Details Conical inserts for rolling cone rock bits Conical inserts for rolling cone rock bits

1994-02-28

1995-05-16

Neuder, William P.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175430, E21B 1052, E21B 1058

Patent

active

054152445

ABSTRACT:
A conical insert is disclosed having a cutting tip which includes a spherically shaped apex and a substantially conical surface therebelow. The trailing side of the cutting tip is convex as seen in the longitudinal section taken normal to the apex. The leading side of the cutting tip is either a straight line segment or is concave as seen in the longitudinal section taken normal to the apex.

REFERENCES:
patent: 3442342 (1969-05-01), McElya et al.
patent: 4108260 (1978-08-01), Bozarth
patent: 4334586 (1982-05-01), Schumacher
patent: 4776413 (1988-10-01), Forsberg
patent: 5322138 (1994-06-01), Siracki

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