System for charging and/or discharging X-ray film sheets into and/or from cassette, and a cassette for use in the system
US4783588A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1986 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Sep 11, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B42/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for automatic charging and discharging an X-ray film sheet into a cassette includes a bar code reader having an illumination device and a rotary scanning mirror. The cassette is provided on its top with a bar code label which irrespective of the format of the cassette is always located at a fixed distance from a leading edge and from a lateral guiding edge of the cassette. The cassette is insertable into an intake compartment and only after the cassette reaches an end position in the compartment a limit switch activates the scanning mirror and the illumination device of the reader, thus eliminating reading errors when reading bar codes on cassettes of different formats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.