Patent · US Expired

Film cassette for a photosensitive film strip

US4380382A · kind A · utility

1Cited by

3References

7Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Dieter Engelsmann · Unterhaching, DE
Franz Hoffacker · Langenfeld, DE
Guido Kovacic · Unkel, DE
Peter Lermann · Feldkirchen-Westerham, DE
Hermann Luhrig · Leverkusen, DE
Karl Wagner · Munich, DE

Key dates

Filing date	Jun 17, 1981
Grant date	Apr 19, 1983
Priority date	—
Expiry date	Jun 17, 2001

Classification

Technology area (CPC G)Physics
CPC primaryG03B2217/265
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a film cassette for a photosensitive film consisting of a light-proof, flat flexible case substantially equal in length to the strip of film and a cassette opening which extends perpendicularly of the length of the case and which is provided with light-sealing means whereby the top part and the bottom part of the cassette being fixedly interconnected solely in the vicinity of the cassette opening and the other three edges are displaceable relative to one another in light proof labyrinths, even if the case is bent, the strip of film retains its freedom of movement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.