Bicycle chain tensioner device
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United States of America Patent
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Mar 5, 2019
Grant Date -
Dec 20, 2012
app pub date -
Jun 17, 2011
filing date -
Jun 17, 2011
priority date (Note) -
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Abstract
A bicycle chain tensioner device is basically provided with a base member, a pulley and an electrical storage unit. The pulley is supported by the base member. The pulley includes a dynamo that generates electrical energy in response to the pulley being rotated by a bicycle chain. The electrical storage unit is disposed on the base member and electrically coupled to the dynamo to store electrical energy generated by the dynamo.
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