Turbodrill

Details Turbodrill Turbodrill

1981-09-10

1984-10-09

Purser, Ernest R.

Boring or penetrating the earth

With below-ground tool drive prime mover

Fluid rotary type

175 45, 415502, E21B 402

Patent

active

044756054

ABSTRACT:
A turbodrill comprising turbine sections, a spindle and a pipe assembly. According to the invention, the pipe assembly is formed by two coaxially arranged pipes provided between the spindle and the adjacent turbine section and coupled to components of the turbodrill.

REFERENCES:
patent: 2348047 (1944-05-01), Yost
patent: 2850264 (1958-09-01), Grable
patent: 2890859 (1959-06-01), Garrison
patent: 2908534 (1959-10-01), Rietsch
Van Nostrand's Scientific Encyclopedia, 5th Edition, Van Nostrand Reinhold Co., New York, 1976, p. 777.

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