Apparatus for the wet processing of photographic sheet material
US5754914A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1996 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Dec 13, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D3/132
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for the wet processing of photographic sheet material comprises at least one treatment vessel (12, 12', 12") having upper and lower openings (17, 18). One of the openings constitutes a sheet material inlet and the other of the openings constitutes a sheet material outlet. A substantially vertical sheet material path (20) through the vessel is defined by the inlet and outlet and by a path-defining rotatable roller (28) biased towards a reaction surface (30) to form a roller nip (36) there-between through which the sheet material path extends. The path-defining roller (28) is in sealing contact along its length, with a rotatable sealing member (38). The reaction surface is preferably a further path-defining roller. The sealing of one vessel from the next and of the path-defining roller to the housing of the associated vessel is thereby achieved in a simple and reliable manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.