Drilling system drive steel

Details Drilling system drive steel Drilling system drive steel

1999-03-01

2000-12-19

Schoeppel, Roger

Boring or penetrating the earth

Bit or bit element

With fluid conduit lining or element

175324, 1753252, 299 399, 299 411, 299 55, 299 813, E21B 400

Patent

active

061616354

ABSTRACT:
A drive steel member for driving engagement with a rotary drilling machine, including a chuck adapter having main body and chuck seating elements and being constructed and arranged in fixed, sealing relation on on one end of the drive steel member.

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patent: 4497185 (1985-02-01), Shaw
patent: 4682661 (1987-07-01), Hughes et al.
patent: 4863355 (1989-09-01), Odagiri et al.
patent: 5004382 (1991-04-01), Yoshino
patent: 5046932 (1991-09-01), Hoffmann
patent: 5074025 (1991-12-01), Willard

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