Stabilized filament drawing device for a meltspinning apparatus
US7320581B2 · kind B2 · utility
1Cited by
25References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2003 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Jan 19, 2025 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/0985
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A stabilized filament drawing device for a meltspinning apparatus. The stabilized filament drawing device applies a high-velocity flow of air to attenuate the filaments, which are discharged from a device outlet in a discharge direction. The filament drawing device includes multiple inclined guides adjacent to the outlet that cause the high-velocity flow of air to deviate from the discharge direction by the Coanda effect. The filaments, which are entrained in the high-velocity process air, likewise deviate from the discharge direction. The guides are arranged such that spaces are absent between adjacent guides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.