Ribbon core and spindle
US6726144B2 · kind B2 · utility
10Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Dec 2, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/5122
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Core and spindle technology for use with ribbon materials. The invention has use in many environments in which a ribbon or sheet material is wound onto a core, for example in printers and related equipment used to produce data bearing identity documents. The core and spindle are constructed to prevent the core from locking on the spindle as a result of the core contracting as ribbon material is wound onto the core. The core and spindle permits contraction of the core without squeezing or binding the core to the spindle, so that the core can easily be removed from the spindle once the ribbon is wound onto the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.