Device for filament end-rounding and a method for end-rounding (tooth)brush filaments
US10314389B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 2016 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 1, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46D9/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An end-rounding device comprises a movable body comprising an abrasive surface; a gearing for transferring a movement from a motor to the movable body; a providing unit for providing a plurality of bristle filament ends to the abrasive surface, wherein the providing unit comprises a clamping unit for clamping a bunch of filaments, wherein the bunch comprises a multiple of filaments of a bristle tuft; wherein the abrasive surface has a diameter from 80 mm to 300 mm and comprises a concave curvature oriented in the direction of the clamping unit; and wherein the clamping unit is movably spaced from the abrasive surface at a distance. A method of smoothening bristle filament ends utilizes the end-rounding device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.