Breakaway drive system
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United States of America Patent
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Jul 1, 2014
Grant Date -
Apr 12, 2012
app pub date -
Oct 7, 2011
filing date -
Oct 8, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Certain embodiments provide a breakaway drive system that includes an actuator, an actuator breakaway, a shaft breakaway and a drive shaft. The actuator breakaway is operably connected to the actuator and is configured to rotate when the actuator is displaced. The shaft breakaway includes a breakaway mechanism for disengagingly connecting the actuator breakaway to the shaft breakaway. The shaft breakaway rotates in unison with the actuator breakaway when the shafts are operably engaged and does not rotate in unison with the actuator breakaway when the shafts are disengaged. The drive shaft is operably connected to the shaft breakaway such that rotation of the shaft breakaway causes rotation of the drive shaft. An external force on the drive shaft that exceeds a threshold causes rotation of the shaft breakaway such that the breakaway mechanism disengages the shaft breakaway and the actuator breakaway.
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