Methods and equipment for forming tubes of fibrous material
US12030264B2 · kind B2 · utility
0Cited by
16References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2018 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Feb 2, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Equipment for forming a tubular rod from a bundle of fibrous material comprising a mandrel constructed to form a space within the bundle of fibres; the mandrel includes a passage for delivering a treatment fluid to facilitate the formation of the fibres into a tubular structure as the fibre bundle as the bundle passes over the mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.