Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chih-Ching Hsieh0
Date of Patent
October 15, 2019
0Patent Application Number
152279780
Date Filed
August 4, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A rotatable fastening device disclosed in the present disclosure includes a rotating seat and an impact element. The impact element is one-way pivoted at the rotating seat. The rotating seat is rotated along a rotation axis and detachably connected between a driving tool and an element to be rotated. The weight and kinetic energy of the impact element will provide a one-way tangential impact force around the rotation axis with of rotation.
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