Mechanically nutating drill driven by orbiting mass oscillator

Details Mechanically nutating drill driven by orbiting mass oscillator Mechanically nutating drill driven by orbiting mass oscillator

1979-08-06

1981-04-14

Leppink, James A.

Boring or penetrating the earth

With below-ground tool drive prime mover

With mechanical motion-converting means

175 55, 175107, 74 61, E21B 724

Patent

active

042614252

ABSTRACT:
A drill bit is coupled at its upper end to an orbiting mass oscillator. The oscillator is mounted and connected to the bit such that the oscillator describes a conical orbiting path. The drill bit follows this conical orbiting path of the oscillator which results in a rolling nutating action of the bit cutters on the work material.

REFERENCES:
patent: 747869 (1903-12-01), Drake
patent: 1580001 (1926-04-01), Bicknell
patent: 2902258 (1959-09-01), Hildebrandt
patent: 3049185 (1962-08-01), Herbold
patent: 3603407 (1971-09-01), Clark
patent: 3746310 (1973-07-01), Fransson et al.

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