Multi-pad film processing
US5440366A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1994 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Jul 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D9/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic film image carrying element is housed in a cartridge having a strip wound around a spool in the cartridge, where the strip includes a leader protruding from the cartridge, the image carrying element, a leader barrier for physically and chemically separating the leader from the image carrying element, a first reagent laden web, a first barrier for physically and chemically separating the image carrying element from the first reagent laden web, a second reagent laden web, and a second barrier for physically and chemically separating the first reagent laden web from the second reagent laden web. The second reagent laden web is attached to the spool. The photographic film image carrying element can be processed by: winding the image carrying element onto a first take-up reel; merging the image carrying element and the first reagent laden web by guiding the strip at the first barrier through a set of rollers then winding the merged image carrying element and first reagent laden web onto a second take-up reel; rewinding and separating, after a first predetermined time, the image carrying element onto the first take-up reel and the first reagent laden web onto the spool in …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.