Ribbon tensioning mechanisms
US7441970B2 · kind B2 · utility
0Cited by
37References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2005 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Nov 10, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J33/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Identity document processing equipment with a mechanism designed to maintain tension in a ribbon used in a processing operation in the processing equipment. The tension maintaining mechanism is separate from the supply roll and the take-up roll for the ribbon, eliminating the need for clutches or brakes attached to the supply or take-up rolls to achieve tensioning. Since the tension maintaining mechanism is separate from the supply roll and the take-up roll, the inertia of the supply roll or the take-up roll does not affect the tension on the ribbon during use of the processing equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.