Cores for compressed core wound paper products
US5318235A · kind A · utility
4Cited by
24References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Dec 8, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/532
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A core for compressed core wound paper products such as toilet tissue and paper toweling is disclosed. The core is selectively cut and scored to form folding tab portions that fold radially inward when the core is in a generally flattened configuration. Upon rerounding of the core to a generally cylindrical configuration, the folding tab portions can be unfolded to form circular arcs conforming to the core inner and outer surfaces. The folding tab portions enable the core to reround to a generally cylindrical configuration that resists reflattening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.