One-time-use camera has driver for closing film cassette which is broken to disable camera after completed use
US5579070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1996 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Jan 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/265
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera for use with a film cassette having a movable light lock supported within a film egress/ingress slot to be moved closed after a filmstrip is wound into the cassette, comprises a cassette-receiving chamber, and a movable driver to be moved to close the light lock before the cassette is removed from the chamber. An exterior ingress opening to the chamber is provided to admit an insertion tool into the chamber to push the cassette out of the chamber. The driver has a weakened portion and is located for the tool to push the driver to force the cassette out of the chamber. Fixed means is located to break the weakened portion during movement of the driver, whereby the camera will be disabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.