Electric toothbrush
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United States of America Patent
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Apr 9, 1996
Grant Date -
N/A
app pub date -
Jul 8, 1994
filing date -
Mar 24, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A brush provided on an end surface of a handle is equipped with a drive device capable of producing a reciprocating rectilinear motion in the direction of a handle axis and a reciprocating motion about the handle axis, while also producing a reciprocating motion about an axis in the direction of brush projection. The brush moves in a combination of the reciprocating rectilinear motion in the direction of the handle axis, the reciprocating motion about the handle axis, and the reciprocating motion about the axis in the direction of brush projection, and therefore scrub area increases, by virtue of the motion of the brush, the brush does not become trapped between teeth, and cleaning of the entire tooth surface is possible.
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