Yarn adjuster for controlling evenness of yarn tufts
US4127078A · kind A · utility
40Cited by
3References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1977 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Jun 30, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05C15/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn adjuster positioned adjacent tufting needles in a tufting machine for engaging yarn in close proximity to the tufting needles and moving it a predetermined distance to thereby control the length of the yarn on each side of the needles which controls evenness of tufts particularly when dual tufting needles are utilized to tuft U-shaped tufts. The yarn adjuster may be driven by an improved coupler point drive featuring long dwell and fast rise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.