False twist device and method of producing a textured yarn or the like
US3998041A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1976 |
| Grant date | Dec 21, 1976 |
| Priority date | — |
| Expiry date | Mar 1, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of, and apparatus for, fabricating a textured yarn or the like comprising a false twist device containing a number of friction disks arranged in spaced coaxial relationship with respect to one another in succession and thread guide elements helically distributed along the circumference of the false twist device. The thread guide elements extend into the space between the disks and are helically arranged along the circumference of the false twist device in such a manner that a yarn contacting the disks and guided by the thread guide elements contacts the false twist device along a helix, the helix angle or pitch of which decreases in the direction of travel of the yarn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.