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Electric toothbrush

  • US 5,020,179 A
  • Filed: 01/05/1990
  • Issued: 06/04/1991
  • Est. Priority Date: 01/11/1989
  • Status: Expired due to Term
First Claim
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1. A brush member for an electric toothbrush which is connectable at its lower end to a handle of the electric toothbrush, said brush member comprising:

  • an exchangeable insert comprising a plurality of axially rotatable bristle holders, each of said bristle holders comprising tufts of bristles extending from an upper portion of the bristle holders and an eccentric cam extending from a bottom portion of the bristle holders;

    a brush head at an upper end of the brush member, said brush head comprising means for removably receiving the exchangeable insert; and

    driving means for axially rotating said bristle holders, said driving means located within the brush head and comprising a plurality of substantially transverse grooves in a reciprocating connecting rod, said transverse grooves for engaging the eccentric cams of each of the bristle holders of an exchangeable insert received in the receiving means.

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