Brush section for an electric toothbrush

  • US 6,021,538 A
  • Filed: 12/05/1997
  • Issued: 02/08/2000
  • Est. Priority Date: 06/24/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A brush section for an electric toothbrush having a handle section, the brush section comprising:

  • a first end adapted to be connected to the handle section;

    a second end remote from the first end, the second end including a disk-shaped bristle carrier, the bristle carrier having an end surface which includes bristles arranged in the form of tufts, the tufts being disposed at least on one central ring and on one outer ring, the bristle carrier being mounted on the second end of the brush section so as to be rotatable about an axis of rotation in an alternating oscillating fashion from a central position, the axis of rotation being aligned at an angle to a longitudinal center line of the brush section, wherein the outer ring includes tufts having bristles of different lengths, and adjacent tufts on the outer ring form clusters of tufts, wherein each cluster of tufts has bristles of a length different from bristles of tufts of at least one other cluster.

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