Brush head for an electric toothbrush
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United States of America Patent
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Sep 15, 2015
Grant Date -
Jun 26, 2014
app pub date -
Feb 18, 2013
filing date -
Dec 20, 2012
priority date (Note) -
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Abstract
A brush head for an electric toothbrush having a support structure rotatably oscillated by a motor in the handle of the toothbrush. A plurality of bristle tufts are mounted on the support structure in three ring-like series concentrically about a center point of the support structure. The bristle tufts are arranged in a unique arrangement whereby no more than two of the bristle tufts in the intermediate series and innermost series lie on a diameter line passing through the center point. The outermost and intermediate series of bristle tufts may be arranged in oval-shaped rings and the bristle tufts of the inner series may have a circular arrangement. All of the tufts preferably have the same height and diameter.
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