Impact borer for embedding lines, anchoring cables and sinking w

Details Impact borer for embedding lines, anchoring cables and sinking w Impact borer for embedding lines, anchoring cables and sinking w

1992-05-21

1993-10-19

Novosad, Stephen J.

Boring or penetrating the earth

Below-ground impact members

Fluid-operated

175 19, 175 92, 175 62, 173 91, E21B 414, E21B 726

Patent

active

052537226

ABSTRACT:
An impact borer, a connector, a method for embedding lines and an improved method for sinking geothermal wells. The impact borer has a shell, which has a longitudinal bore. An anvil closes one end of the bore. A ram is reciprocally slideable within the bore, against and away from the anvil. The ram divides the bore into front, rear, and ram chambers. A director is joined to the shell. The director is monolithic. The director isolates the front and rear chambers in alternation upon reciprocation of the ram. The director defines an inlet passage communicating with the ram chamber and an outlet passage communicating with the rear chamber.

REFERENCES:
patent: 4821813 (1989-04-01), Jenne et al.
patent: 4840237 (1989-06-01), Roemer
patent: 4913243 (1990-04-01), Jenne et al.
patent: 4932483 (1990-06-01), Rear
patent: 5025868 (1991-06-01), Wentworth et al.
patent: 5096000 (1992-03-01), Hesse

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