Apparatus for the wet processing of photographic sheet material
US5993082A · kind A · utility
3Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Jun 5, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D3/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The apparatus comprises a treatment vessel (112) having a path-defining roller (12) biased towards a reaction member (14) to define a nip (136) there-between through which a sheet material path (120) extends. The path-defining roller (12) comprises a core (56) having a covering of elastomeric material, an outer layer (60) of which is doped with a surface modifying material. The roller which is able to resist wear without significant loss to operating characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.