Textile spreader roller
US4021894A · kind A · utility
13Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Jun 30, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49549
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spreader roller for textiles which is fabricated by positioning a smooth cylindrical supporting member coaxially within a corrugated tube having inner and outer helical ridges, the outer ridges on one longitudinal half of the tube being of opposite hand to the outer ridges on the other half of the tube. The corrugated tube is fastened to the supporting member along the inner helical ridges, preferably by plug welding at spaced points along the inner ridges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.