Manufacture of rolls of fibrous web material
US4332324A · kind A · utility
10Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1980 |
| Grant date | Jun 1, 1982 |
| Priority date | — |
| Expiry date | Feb 6, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2301/414425
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The tail of a roll of fibrous web material is secured to underlying layers through penetration of the layers by a row of needles extending tangentially of the roll and in the same direction that the tail extends or is presented. Penetration is to a depth of about 6 layers, and is accompanied by punching out a very small tab of each layer and pushing it into the opening of the successive, underlying layer thereby to lock the tail in place. Pulling the tail to unwind layers from the roll pulls the tabs from succeeding layers in the direction of unwinding, without tearing the outer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.