Composite core
US6719242B2 · kind B2 · utility
28Cited by
34References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2000 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Dec 1, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/515
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composite core tube is provided for the winding of a web of material. A hollow cylindrical core is covered by a water-resistant rigid sleeve in a heat fit manner to provide a winding surface. The sleeve is selected and finished to control the winding characteristics of the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.