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Electric toothbrush

  • US 5,504,958 A
  • Filed: 12/01/1994
  • Issued: 04/09/1996
  • Est. Priority Date: 12/17/1993
  • Status: Expired due to Term
First Claim
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1. A brush unit for an electric toothbrush, said brush unit comprising:

  • a housing;

    a camshaft rotatably mounted in said housing;

    a first mounting pin extending approximately parallel to the camshaft;

    a series of bristle holders disposed approximately transversely relative to and in contact with the camshaft, a first group of said series of bristle holders being pivotally mounted on said first mounting pin and being movable in a motion about the first mounting pin by rotation of the camshaft; and

    tufts of bristles mounted on said series of bristle holders, wherein said first mounting pin is disposed outside an imaginary first plane aligned approximately parallel to the bristle tufts and extending lengthwise through the camshaft.

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