Drive device, particularly for a clockwork mechanism
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United States of America Patent
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Dec 22, 2009
Grant Date -
Dec 25, 2008
app pub date -
Sep 1, 2005
filing date -
Sep 3, 2004
priority date (Note) -
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Abstract
A drive device formed by etching a wafer. The drive device includes a drive element that can sequentially mesh with a driven element and an actuating element that can displace the drive element according to a hysteresis movement thereby driving the driven element. Placement of the drive element on an outer edge of the wafer enables an interfacing of the drive element with a driven element placed opposite therefrom. A clockwork mechanism including a drive device of the aforementioned type and an input gear that can be rotationally driven by the drive device is also provided.
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