Actuator for moving a tool
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United States of America Patent
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Jun 9, 2009
Grant Date -
Jun 12, 2008
app pub date -
Oct 31, 2007
filing date -
Sep 8, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An actuator for moving a tool is disclosed, comprising a housing in which a tappet carrying a tool holder is guided axially movable, wherein the tappet is movable by means of a fast drive, e.g. by a piezo drive or by a nanotube drive, which is biased against a restoring force and which is dampened by a dampening element. Herein the fast drive may at least partially be received within a recess of the tappet which leads to a very compact design, in particular in combination with a coaxial dampening element. For guiding the tappet in axial direction alternatively a roller guide may be used (FIG. 3).
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