Drilling head for an anchor

Details Drilling head for an anchor Drilling head for an anchor

2007-02-06

2009-08-18

Bagnell, David J (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Impact or percussion type

Reexamination Certificate

active

07575074

ABSTRACT:
A separate drilling head has a distal end which contacts the material to be drilled, and a proximal end which is attached to a drive mechanism. The drive mechanism drives the separate drilling head into the material. The separate drilling head is forcelockingly secured in a thin-walled hollow anchor tube, and the separate drilling head includes a hard metal cutter element, and a substantially axially-oriented, axial stop shoulder at the proximal end that passes into a circumferentially closed, outer cone.

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