Tool driving or impacting – Impacting devices – Selective axial direction of impact
Reexamination Certificate
2007-01-02
2007-01-02
Nash, Brian (Department: 3721)
Tool driving or impacting
Impacting devices
Selective axial direction of impact
C173S102000, C173S103000, C173S112000, C173S122000, C173S166000, C173S131000, C310S323180, C310S323190
Reexamination Certificate
active
11001465
ABSTRACT:
Self drilling anchors and related methods and apparatus. In one embodiment an apparatus comprises a drill bit, a hammer mechanism for hammering the drill bit in a first direction and in a second direction, and a selection mechanism for controlling whether, at a given point in time, the drill bit is hammered in the first or second direction.
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Bar-Cohen Yoseph
Sherrit Stewart
Nash Brian
The United States of America as represented by the Administrator
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