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Automatic toothbrush

  • US 5,337,435 A
  • Filed: 09/18/1992
  • Issued: 08/16/1994
  • Est. Priority Date: 09/18/1992
  • Status: Expired due to Fees
First Claim
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1. An automatic toothbrush for brushing teeth of a user, each of the user'"'"'s teeth having first and second side surfaces, the toothbrush comprising:

  • a) a housing,b) a first set of brushes attached to the housing, the brushes of the first set being arranged in a first arc, each brush of the first set being positioned to contact the first side surface of one of the user'"'"'s teeth, all of the brushes of the first set being rotatable, each brush of the first set having an axis of rotation which is generally perpendicular to said first side surface, the brushes of the first set being connected to each other by a first set of gear means, such that rotation of one of the brushes of the first set causes rotation of all of the brushes of the first set,c) a second set of brushes attached to the housing, the brushes of the second set being arranged in a second arc generally parallel to the first arc, each brush of the second set being positioned to contact the second side surface of one of the user'"'"'s teeth, all of the brushes of the second set being rotatable, each brush of the second set having an axis of rotation which is generally perpendicular to said second side surface, the brushes of the second set being connected to each other by as second set of gear means, such that rotation of one of the brushes of the second set causes rotation of all of the brushes of the second set, at least one member of the first set of gear means being engaged with a member of the set of second gear means, wherein the brushes of the first and second sets are positioned such that a given tooth is contacted on its first side surface by a brush of the first set and on its second side surface by a brush of the second set, andd) means for imparting rotation to a member of the first set of gear means.

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