Film cartridge ejector for photographic system
US5530504A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1995 |
| Grant date | Jun 25, 1996 |
| Priority date | — |
| Expiry date | May 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/268
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ejector mechanism is provided for use in any system which uses photographic film, such as cameras, film development equipment and any other systems designed for film cartridges. One embodiment of the ejector mechanism includes an ejector slide, an ejector slide spring, a trigger lever, a trigger lever spring, a cover plate and a loading chamber. The ejector slide includes a spring hook, a first guide pin, a second guide pin, a trigger lever tab, a trigger lever notch and a film cartridge pin. The trigger lever includes a trigger lever spring attachment, a trigger lever slot, a pawl, a trigger lever head and a trigger control tab. The cover plate includes a ejector spring attachment, a trigger spring hook, a first guide slot and a trigger control ramp. The first guide slot engages the first guide pin attached to the ejector slide to support first guide pin movement along the first guide slot. The first guide slot further includes a latch tab and a latch slot. The loading chamber, which receives a film cartridge endwise, i.e. axially, includes a second guide slot, a trigger lever guide pin and a film cartridge access slot. The second guide slot engages the second guide pin attache…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.