Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
John Geoffrey Chan0
Date of Patent
July 15, 2008
0Patent Application Number
110525930
Date Filed
February 7, 2005
0Patent Primary Examiner
Patent abstract
An electric toothbrush is disclosed comprising a body, a head, and a neck extending therebetween. A motor, drive train, and one or more batteries impart motion to the collection of movable bristles. A spring component is provided in the drive train that is configured to absorb excessive loads that would otherwise be transmitted to the motor. Reducing or eliminating application of such excessive loads on the motor extends battery life.
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