Speed restriction systems using eddy currents
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United States of America Patent
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Sep 4, 2018
Grant Date -
N/A
app pub date -
Oct 6, 2017
filing date -
Oct 6, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
The current subject matter describes a device and system including one or more movable arms containing one or more magnets that are caused to move relative to a non-ferrous material by motion of the device to generate eddy currents that cause a braking of the device. Devices of this disclosure may include a wheel with arms having magnets and that move from centrifugal force caused by rotation of the arms within a wheel. The applied braking force is controlled due, in part, to the configuration of the non-ferrous material in which eddy currents are generated. Devices may additionally or alternately include arms with magnets that move relative to a non-ferrous rail when the device moves to generate eddy currents that cause additional braking of the device.
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