Machine for horizontal percussion boring

Details Machine for horizontal percussion boring Machine for horizontal percussion boring

1997-10-23

1999-11-02

Schoeppel, Roger

Boring or penetrating the earth

With above-ground means to impact an earth-penetrating means

173131, E21B 102

Patent

active

059752211

ABSTRACT:
In a machine for horizontal or inclined percussion boring in the ground having a percussion boring string which has an oblique-face boring head at one end and an impact mechanism at the other end, the impact mechanism is mounted beside the rotary drive in order to reduce the length of the machine.

REFERENCES:
patent: 4690226 (1987-09-01), Schnizler et al.
patent: 5010965 (1991-04-01), Schmelzer
patent: 5289887 (1994-03-01), Puttmann
patent: 5310014 (1994-05-01), Mueller

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