Dye tube
US4789111A · kind A · utility
7Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1987 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Nov 5, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B23/042
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dye tube has a pair of end rings and at least one support ring intermediate these rings and concentric therewith. A plurality of alternate, rigid V-shaped and inverted V-shaped ribs are integrally formed with the rings and defined therewith an initially rigid network of winding yarn to be dyed through which dye can flow. The ribs are arranged in separate spaced groups so as to tend to collapse axially in opposite directions upon the application of a predetermined force thereon. A non-collapsible torque resistant section extends from each end ring to strengthen the structure and prevent it from buckling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.