One-time-use camera with lid flexed to uncover chamber when cassette forcibly ejected from chamber
US5748990A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1997 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | May 5, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2219/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera has a chamber for holding a film cassette and a lid for closing the chamber. An ingress opening to the chamber is located to admit an insertion tool into the chamber to push the cassette against the lid to move the lid to open the chamber, to permit the cassette to be pushed out of the chamber. The chamber and the lid have respective peripheries with mutually engaging light-trapping portions which engage to secure the lid to light-tightly close the chamber, but which are separated when the lid is moved to open the chamber. The lid is flexible and has a fixed projection which protrudes into the chamber to be pushed by the cassette to flex the lid partially out of the chamber to make the engaging portion of the lid separate from the engaging portion of the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.