Head for an oral-care implement and oral-care implement
US10219611B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2016 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Nov 17, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A head for an oral-care implement having a longitudinal axis and comprises a bristle carrier having at least one tuft hole and at least one tuft being fixed in said tuft hole by an anchor. The at least one tuft comprises at least one filament having a longitudinal axis and a non-circular cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The at least one filament is bent around the anchor so that a first limb and a second limb extend from the bristle carrier. The first limb comprises a first free end, and the second limb comprises a second free end. Each free end is twisted around the longitudinal axis by a twisting angle α of about 80° to about 100°, preferably about 90°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.