Bi-component friction disc for yarn texturing
US4068457A · kind A · utility
0Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | Jul 13, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A bi-component friction disc for imparting false twist to yarn to texture the yarn comprising an inner surface having a first portion of ceramic material surrounded by a second portion of polyurethane or rubber. Typically, one of these discs is installed on each end of a hollow tube, and two sets of tubes and discs are used in order to allow the yarn being textured to make four passes over the discs to impart the false twist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.