Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 5, 2019
Patent Application Number
13162710
Date Filed
June 17, 2011
Patent Citations Received
Patent Primary Examiner
Patent 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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