Method and apparatus for producing tufts from different yarns in longitudinal lines
US5224434A · kind A · utility
74Cited by
7References
8Claims
0Family size
Inventors
Key dates
| Filing date | Aug 24, 1992 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Aug 24, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05C15/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Front and rear needle bars are provided with front and rear needles for inserting yarns into a backing material. An excess of front loopers are provided for the front needles and an excess of rear loopers are provided for the rear needles. The front loopers respectively face the rear loopers and are respectively aligned with each other. The needle bars are shifted laterally so as to provide longitudinal rows of tufts formed by the front needles providing spacing between the tufts of a longitudinal row which space is filled in by the tufts of rear needles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.