Spring dye tube
US4872621A · kind A · utility
6Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1988 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Oct 25, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B23/042
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spring dye tube has a pair of end rings and at least one support ring intermediate these rings and concentric therewith. A plurality of spaced, rigid V-shaped ribs are integrally formed with the rings and define therewith an initially rigid network or 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 upon the application of a predetermined force thereon. A non-collapsible rigid, torque resistant section extends from each end ring to strengthen the structure. Straight parallel members add rigidity and extend from one end ring to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.