Height-adjustable actuation device
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United States of America Patent
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Jan 28, 2014
Grant Date -
Jul 21, 2011
app pub date -
Jan 18, 2011
filing date -
Jan 18, 2010
priority date (Note) -
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Abstract
A height-adjustable actuation device comprises a drive for height adjustment of the actuation device; a casing having a longitudinal axis; a hollow spindle arranged in the casing for displacement of a first lid arranged on the hollow spindle along the longitudinal axis; an internal spindle arranged inside the hollow spindle for displacement of a second lid arranged on the internal spindle along the longitudinal axis, with the hollow spindle and the internal spindle being non-rotatably connected to each other in terms of a rotation about the longitudinal axis, and with the hollow spindle and the internal spindle being displaceable relative to each other along the longitudinal axis.
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