Steerable soil displacement hammer

Details Steerable soil displacement hammer Steerable soil displacement hammer

2007-09-18

2007-09-18

Thompson, Kenneth (Department: 3672)

Boring or penetrating the earth

Processes

Boring curved or redirected bores

C175S062000, C175S073000

Reexamination Certificate

active

10399834

ABSTRACT:
The invention relates to a steerable soil displacement hammer for horizontal ground boring, comprising a body that can be rotated by means of a longitudinal element, and a thrust head that is mounted rotationally in relation to the body. A rotation of the body in relation to the thrust head causes the thrust head to pivot out into an asymmetrical constellation or to pivot to a symmetrical constellation. The invention also comprises a retaining feature which provides a hold in the environment and which permits a relative rotation of the body and simultaneous pivoting of the thrust head. The soil displacement hammer can be driven forwards or backwards and the retaining feature is situated in the area of the pivot axis of the thrust head.

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