Banknote validator
US5657847A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1994 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Aug 26, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/128
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The note path of a banknote validator has a U-shaped transverse cross section. A transverse strip of the note path is illuminated by light from a light transmitting station by means of a unitary light guide which has an arcuate portion conforming to the transverse cross section of the note path. Light reflected from a banknote, within the note path, is captured by the light guide and guided to a light receiving station. The light guide is shaped such that a transverse strip of the note path is substantially evenly illuminated. The U-shape of the note path also assists the insertion of notes into the validator, as an inserted note is caused to bow during insertion thereby increasing its rigidity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.