Film assembly apparatus and method for single-use camera employing film securement web
US5412446A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1994 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Feb 17, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B19/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A single-use camera comprises a main body portion having an exposure opening, a rotatable spool at one side of the exposure opening in the main body portion, a film cassette having a leading section of a filmstrip protruding from the cassette at another side of the exposure opening, a rotatable sprocket wheel between the spool and the film cassette for engaging the leading section of the filmstrip, and an elongate web attached to the spool and longitudinally extending from the spool to a location beyond the sprocket wheel. To load the camera, a leading section of the filmstrip is positioned beneath the web in engagement with the sprocket wheel. The sprocket wheel is rotated in engagement with the leading section of the filmstrip to advance the leading section beneath the web onto the spool. Then the spool is rotated to wrap the web about the spool and secure the leading section of the filmstrip to the spool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.