Cloth-board reel
US3967800A · kind A · utility
2Cited by
4References
5Claims
0Family size
Inventors
Key dates
| Filing date | Nov 10, 1975 |
| Grant date | Jul 6, 1976 |
| Priority date | — |
| Expiry date | Nov 10, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H75/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A new and improved cloth-board reel is disclosed which utilizes two corrugated sheets bonded together eliminating the need for an intermediary sheet which was previously considered necessary. The cloth-board reel of the present invention provides the required strength without the more expensive construction previously considered necessary. The corrugated sheets are covered with a wrapper sheet which forms a smooth surface for the cloth and adds to the strength of the cloth-board reel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.