Brush element for an acoustic toothbrush
First Claim
1. A brushhead for use with a vibrating toothbrush which uses fluid to produce an acoustic cleaning effect on the teeth beyond the reach of the bristles, wherein the vibrating toothbrush has an operating frequency in the range of 200 Hz to 300 Hz, the brushhead comprising:
- a brushhead base member; and
a plurality of bristle portions, at least some of the bristle portions being shorter than the remaining, longer bristle portions, wherein the remaining bristle portions have a natural resonant frequency such that the operating frequency of the toothbrush is within the range of 0.60 to 0.95 of said natural resonant frequency of the remaining bristle portions and wherein the shorter bristle portions have a natural resonant frequency significantly greater than the longer bristle portions.
6 Assignments
0 Petitions
Accused Products
Abstract
The brush element (10) includes a base (14), the base (14) including a connecting portion (18) at one end (16) thereof, which is capable of receiving the lever arm (15) of a vibrating toothbrush. Successive lateral rows of spaced bristles (19-27) are anchored in the brush base (14), in a pattern comprising two successive rows of full length bristles which are configured so that the tips of each two rows form a peak, followed by a third row of shorter bristle portions which are approximately 0.2 inch shorter than the full length bristles.
145 Citations
10 Claims
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1. A brushhead for use with a vibrating toothbrush which uses fluid to produce an acoustic cleaning effect on the teeth beyond the reach of the bristles, wherein the vibrating toothbrush has an operating frequency in the range of 200 Hz to 300 Hz, the brushhead comprising:
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a brushhead base member; and a plurality of bristle portions, at least some of the bristle portions being shorter than the remaining, longer bristle portions, wherein the remaining bristle portions have a natural resonant frequency such that the operating frequency of the toothbrush is within the range of 0.60 to 0.95 of said natural resonant frequency of the remaining bristle portions and wherein the shorter bristle portions have a natural resonant frequency significantly greater than the longer bristle portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification