Ablation process involving bristles on a mascara brush and the mascara brush obtained by such process
US6289902A · kind A · utility
13Cited by
11References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Feb 28, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B9/021
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The process according to the invention comprises twisting a plastically deformable wire, typically of metal, so that it imprisons fibers within it, with the parts of the fibers projecting from the wire forming bristles in a helicoidal spiral, and of shaving off some of the bristles in predefined angular sectors by using the twisted wire to guide the components causing the total or partial ablation of the bristles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.