Method and apparatus for deregistering multi-filament tow and product thereof
US5422180A · kind A · utility
3Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1993 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Aug 10, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for deregistering drawn crimped nylon multifilament tow includes the steps of stretching the tow under constant controlled tension at a temperature below the glass transition temperature of the nylon. The apparatus includes means for sensing the tension of the tow between the feed and draw sections of a stretching device and producing a signal representative of the tension sensed and a controller for changing the speed of the draw section actuated by said signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.