Apparatus for applying images, particularly security images to banknotes
US5618378A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1991 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Feb 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1734
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A security or other image, for example a hologram, is applied to a moving stock, e.g. banknote sheets, by carrying the images in the form of transfers on a web which is moved at the same speed as the stock during application but at a lower speed between application steps, so as to allow relatively close spacing of the images on the web. The web is retracted following each application to compensate for distance travelled during acceleration and deceleration during each cycle. The images are transferred by pressure cylinders which press the images on to adhesive patches provided on the stock at predetermined positions by applicator rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.