Electric toothbrush with drive release
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 9, 1996
Grant Date -
N/A
app pub date -
Aug 16, 1994
filing date -
Aug 16, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric toothbrush includes a handle section having a motor drive and a drive shaft coupled to the motor drive by a translating device, and a brush section having bristle assembly and a transmission shaft unit coupled to the drive shaft and driven by it to turn the bristle assembly back and forth alternatively, the transmission shaft unit consisting of a driving member, a connecting member, a driven member, and a compression spring, wherein the transmission shaft unit disengages from the drive shaft upon an overpressure to prevent damage to the bristles.
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Family
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Cited Art Landscape
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