Apparatus for feed-out of leading film end from roll film cartridge
US4826102A · kind A · utility
6Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1986 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Nov 18, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/113
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A roll film feed-out apparatus of the present invention has a pressure roller which rotates freely in obedience to the movement of the film. The pressure roller, which is pressed against the film surface when film feed-out operation is executed, enhances the reliability of the film feed-out operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.