Electric toothbrushes
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United States of America Patent
Stats
-
Jul 28, 1998
Grant Date -
N/A
app pub date -
Dec 30, 1996
filing date -
Dec 30, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric toothbrush has a drive shaft with an off-set finger. A pivotably supported wobble plate has a fork at one end and an arcuate drive gear at another end. The drive gear meshes with a gear rotatably fixed to a brush holder so that in use the brush holder is caused to oscillate. The arrangement provides more flexibility in design and in particular enables the maximum arc of oscillation to be significantly increased over similar prior art toothbrushes.
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Family
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