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US 11,376,106 B2Granted
Powered toothbrush bristle head
AssigneeSunstar Americas, Inc.
InventorsSupinda Watcharotone, Toru Saito, Jonathan Gum
Life of this patent
Estimating the term…
Abstract
A powered toothbrush and toothbrush head comprise a transmission housing; a substantially disk-shaped bristle carrier; a plurality of first bristle tufts arranged on the bristle carrier along a first virtual circle; and a plurality of second bristle tufts arranged on the bristle carrier along a second virtual circle, the second virtual circle being concentric with and having a smaller diameter than the first virtual circle, wherein each of the plurality of first bristle tufts includes a plurality of bristles of a first type, having a tapered form.
Claims8
A toothbrush head, comprising:
- a transmission housing;
- a substantially disk-shaped bristle carrier;
- a plurality of first bristle tufts arranged on the bristle carrier along a first virtual circle;
- a plurality of second bristle tufts arranged on the bristle carrier along a second virtual circle, the second virtual circle being concentric with and having a smaller diameter than the first virtual circle, and
- a plurality of third bristle tufts arranged on the bristle carrier along a third virtual circle, the third virtual circle being concentric with and having a smaller diameter than the second virtual circle, wherein
- each of a pair of adjacent first bristle tufts of the plurality of first bristle tufts includes a plurality of bristles of a first type, each of the plurality of bristles of the first type having a tapered form,
- a first subset of the plurality of second bristle tufts includes a plurality of bristles of a second type, each of the plurality of bristles of the second type having a distal end with rounded corners, from a cross-section perspective,
- a second subset of the plurality of second bristle tufts includes a plurality of bristles of a third type,
- a second type bristle height is less than a first type bristle height and a third type bristle height, and a second type bristle thickness is less than a first type bristle thickness and less than a third type bristle thickness,
- each of the plurality of third bristle tufts includes a plurality of bristles of the second type, and
- each of the first type bristle height, second type bristle height, and third type bristle height is no greater than 8 mm.
8 more elements
A powered toothbrush comprising:
- a toothbrush head including:
- a transmission housing,
- a substantially disk-shaped bristle carrier,
- a plurality of first bristle tufts arranged on the bristle carrier along a first virtual circle,
- a plurality of second bristle tufts arranged on the bristle carrier along a second virtual circle, the second virtual circle being concentric with and having a smaller diameter than the first virtual circle, and
- a plurality of third bristle tufts arranged on the bristle carrier along a third virtual circle, the third virtual circle being concentric with and having a smaller diameter than the second virtual circle;
- and
- a power handle,
- wherein:
- each of a pair of adjacent first bristle tufts of the plurality of first bristle tufts includes a plurality of bristles of a first type, each of the plurality of bristles having a tapered form,
- a first subset of the plurality of second bristle tufts includes a plurality of bristles of a second type, each of the plurality of bristles of the second type having a distal end with rounded corners, from a cross-section perspective,
- a second subset of the plurality of second bristle tufts includes a plurality of bristles of the first type,
- a second type bristle height is less than a first type bristle height, and the second type bristle thickness is less than a first type bristle thickness,
- each of the plurality of third bristle tufts includes a plurality of bristles of the second type, and
- each of the first type bristle height and the second type bristle height is no greater than 8 mm.
12 more elements
Dependencies are inferred from the claim text.