Oral care implement and filament for the same
US10244857B2 · kind B2 · utility
23Cited by
18References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2016 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Jun 9, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A mechanically tapered bristle filament for an oral care implement. The filament is characterized by a long thin tapered end portion. The tapered end portion has a taper length and tip diameter comparable to chemically tapered filaments. The areal surface roughness of the tapered end portion however is greater than chemically tapered filaments thereby producing increased scrubbing action against the surfaces of the teeth. The foregoing taper and roughness characteristics of the present filament enhance inter-dental cleaning effectiveness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.