Film cassette
US4395107A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1981 |
| Grant date | Jul 26, 1983 |
| Priority date | — |
| Expiry date | May 15, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/265
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A film cassette for multi-exposure film strips has a body part with an inner compartment for a film strip and at least one opening for passage of the film strip therethrough between an initial position before exposure and a final position after exposure, and elements for preventing unintentional withdrawal of the film strip from the body part in at least one of these positions, the preventing elements arranged between the body part and the film strip. The preventing elements can be arranged so that they prevent unintentional withdrawal of the film strip in both positions. The preventing elements include a recess provided in one of the film strip and the body part, and a projection provided in the other of the film strip and the body part and engageable in the recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.