Drill bit having improved cutter configuration

Details Drill bit having improved cutter configuration Drill bit having improved cutter configuration

1988-06-09

1990-04-03

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

Magnetized or with magnet

51307, 175410, E21B 1046, E21B 1048

Patent

active

049132474

ABSTRACT:
The subject drill bits include a body member with cutter blades having a generally parabolic bottom profile. The cutter blades each include a diamond cutting face which increases in vertical height generally as a function of increased distance from the center line of the bit. The increased height allows the bits to provide a desired total diamond cutting volume at each radius of the bit, while allowing the diamond contact area to remain generally constant as the bit wears.

REFERENCES:
patent: 2740651 (1956-04-01), Ortloff
patent: 3127945 (1964-04-01), Bridwell et al.
patent: 3153458 (1964-10-01), Short
patent: 4554986 (1985-11-01), Jones
patent: 4696354 (1987-09-01), King et al.
patent: 4714120 (1987-12-01), King
patent: 4719979 (1988-01-01), Jones
patent: 4726718 (1988-02-01), Meskin et al.

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