Drive device
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United States of America Patent
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Jul 16, 2013
Grant Date -
May 17, 2012
app pub date -
Nov 22, 2011
filing date -
Jul 17, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A driving device for adjusting an activating element of a throttle, of a valve, of a connecting device, of a metering device or the like in particular in the field of oil and gas exploration with at least one rotary gear movably connected to the activating element and a gear arranged between the rotary gear and at least one motor. To improve such a drive device in that the structure is simple and compact and efficiency is increased wherein simultaneously high axial forces are avoided and only a small number of assembly parts are necessary, the gear unit comprises a reduction gear assigned to the rotary gear in particular the so called harmonic drive gear, and a spare gear assigned to the motor which is in particular self locking.
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