Flipper arm drive
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United States of America Patent
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Sep 27, 2011
Grant Date -
Aug 13, 2009
app pub date -
Jan 15, 2007
filing date -
Jan 18, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to an arrangement on a spreader for lifting containers, the arrangement comprising a flipper arm which is supported at the corner of the spreader such that the flipper arm is pivotable between an upraised rest position and a lowered operative position wherein the flipper arm is effective for positioning of the spreader corner relative to the corresponding corner of a container upon connecting the spreader to the container. The arrangement is characterized in that the flipper arm is carried on a rotatable shaft and driven by a motor, and wherein a power transmission is inserted between the motor and the flipper arm, the power transmission being effective for the transfer of torque from the motor to the flipper arm upon energizing the motor, and operative for locking the flipper arm in its pivoted position upon non-energizing the motor.
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