Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
August 25, 2015
0Patent Application Number
134130150
Date Filed
March 6, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Embodiments of the present invention may include a power tool having a driving motor, a spindle with a front tool and a continuously variable transmission mechanism. The driving motor is configured to output any number of output rotations. The continuously variable transmission mechanism is configured to shift the number of rotations from the driving motor in any ratio and output the shifted rotation to the spindle. The driving motor changes the number of output rotations. The continuously variable transmission mechanism changes the ratio. Both the driving motor and the continuously variable transmission mechanism serve to alter the rotational speed of the spindle.
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