Arrangement for the light-projection of indicia onto X-ray films
US3962585A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1975 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Mar 20, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/244
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An arrangement for the light-projection of indicia onto X-ray films, consisting of an X-ray film cassette having a window provided in a cassette wall extending in parallel with the film plane, including a magnetically-openable slide plate adapted to maintain the window in the closed position thereof in a light-sealed closeable condition, which is at least partly constituted of ferromagnetic material and is retained in a closed position by means of a resilient tongue and is supported so as to be rotatable about a pivot axis oriented perpendicularly to the film plane, a carrier for the indicia which are to be projected, and a light projecting device including a magnet at the entry path of the X-ray film cassette having its location correlated to the location of the window of the inserted X-ray film cassette.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.