Helically wrapped yarn
US4346553A · kind A · utility
8Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1979 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | Nov 9, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G3/385
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A core yarn has a plurality of wrapper yarns wrapped under tension in both the clockwise and counterclockwise directions. The core is composed of staple fibers having substantially no twist so that the core has substantially zero tensile strength. The tensions on the wrapper yarns are balanced by each other and are so high as to compress the core and impart to the core a sinuous configuration along its length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.