US 2018/0000237 A1 · TOOTHBRUSH

Abstract

The present invention is directed to a toothbrush that incorporates tapered bristle filaments in combination with tuft holes of a reduced size, such as between 1.3 mm to 1.4 mm in diameter. In another aspect, the invention provides a toothbrush that balances the number of tuft holes and the number of tapered bristle filaments within each tuft hole to achieve a unique ratio that reduces the cost of manufacture of the toothbrush while maintaining a mouth-feel that consumers associate with a quality product. In still another aspect, the present invention provides a toothbrush that incorporates tapered bristle filaments and also achieves a balance between reduced size tuft holes and the spacing between adjacent tuft holes to achieve a unique ratio that reduces the cost of manufacture of the toothbrush while maintaining a mouth-feel that consumers associate with a quality product.

Claims20

Dependent claims

A toothbrush comprising:

a handle;
a head having a first surface comprising a plurality of tuft holes having a diameter DTH, wherein DTH is in a range of 1.3 mm to 1.4 mm;
and
a bristle tuft mounted within and extending from each of the tuft holes, each of the bristle tufts formed by a plurality of tapered bristle filaments.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/705,733Filed 15 Sep 2017

Priority

10 Apr 2014

Published

4 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

A46B 9/04
Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups: arranged like in or for toothbrushes
A46B 3/00
Brushes characterised by the way in which the bristles are fixed or
A46B 9/028
Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups: bristle profile, the end of the…
A46D 1/0276
Bristles details: bristles having pointed ends

Toothbrush

Life of this patent

Toothbrush

Life of this patent

Abstract

Claims20