False twist device
US6212867A · kind A · utility
0Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | May 26, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/082
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a false twist device for a synthetic multifilament yarn for use in false twist texturing machines. The false twist device comprises at least three sets of disks that are each arranged on an axle for rotation in the same direction. The axles are arranged to form an equilateral polygon such that the disks overlap in the center of the polygon. To keep a yarn tension as low as possible at a high yarn speed, the circumferential surface of the disks is the zone of a sphere or a torus with a circumferential surface radius that has a magnitude of at least 35 times the diameter of the twisted yarn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.