Pump camera
US5737656A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1995 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B19/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera includes a body portion having a cartridge chamber for retaining a film cartridge and a film chamber for retaining a filmstrip a pump cover coupled to the body portion and movable in opposite directions between an opened and a closed position, as well as a rotatable film winding for engaging the film cartridge to wind filmstrip into the film cartridge as the gear is rotated. An engageable locking lever prevents the gear from being rotated until disengaged by movement of the cover in one of the opposite directions in which a movable gear rack having a set of engagement teeth engages the unlocked film winding gear and rotates the film winding gear when the cover is moved in one of the opposite directions to wind film into a film cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.