Brush head for an electric toothbrush
First Claim
1. A brush head of a power-driven toothbrush comprising:
- a support structure;
a plurality of bristle tufts attached to the support structure and extending upwardly therefrom, said plurality of bristle tufts including;
a first series of bristle tufts forming an outer ring of bristle tufts having major and minor axes;
a second series of bristle tufts forming an intermediate ring of bristle tufts;
a third series of bristle tufts forming an inner ring of bristle tufts;
wherein said first, second and third series of bristle tufts are located generally concentrically with respect to each other and about a center point of the support structure;
wherein the second and third series of bristle tufts have equal numbers of bristle tufts with the second and third series of bristles tufts each including only six bristle tufts;
wherein each of the bristle tufts of the third series is located between a pair of bristle tufts of the second series; and
wherein two of the bristle tufts of the third series of bristle tufts lie on the major axis and none of the remaining four bristle tufts lie on the minor axis.
3 Assignments
0 Petitions
Accused Products
Abstract
A brush head for an electric toothbrush having a support structure rotatably oscillated by a motor in the handle of the toothbrush. A plurality of bristle tufts are mounted on the support structure in three ring-like series concentrically about a center point of the support structure. The bristle tufts are arranged in a unique arrangement whereby no more than two of the bristle tufts in the intermediate series and innermost series lie on a diameter line passing through the center point. The outermost and intermediate series of bristle tufts may be arranged in oval-shaped rings and the bristle tufts of the inner series may have a circular arrangement. All of the tufts preferably have the same height and diameter.
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Citations
11 Claims
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1. A brush head of a power-driven toothbrush comprising:
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a support structure; a plurality of bristle tufts attached to the support structure and extending upwardly therefrom, said plurality of bristle tufts including; a first series of bristle tufts forming an outer ring of bristle tufts having major and minor axes; a second series of bristle tufts forming an intermediate ring of bristle tufts; a third series of bristle tufts forming an inner ring of bristle tufts; wherein said first, second and third series of bristle tufts are located generally concentrically with respect to each other and about a center point of the support structure; wherein the second and third series of bristle tufts have equal numbers of bristle tufts with the second and third series of bristles tufts each including only six bristle tufts; wherein each of the bristle tufts of the third series is located between a pair of bristle tufts of the second series; and wherein two of the bristle tufts of the third series of bristle tufts lie on the major axis and none of the remaining four bristle tufts lie on the minor axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification