Photosensitive material processing apparatus
US4954838A · kind A · utility
8Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Mar 24, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D3/132
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photosensitive material processing apparatus adaptable for occasional operation is provided, comprising a processing tank filled with processing solution and an adjustable closure for controlling access to the tank through its top opening. The adjustable closure includes a fixed lid, a movable lid, and a drive for the movable lid. The operating openness, which is the surface area of the solution open to the ambient atmosphere divided by the volume of the solution, is set in a specific range and the quiescent openness is up to 70% of the operating openness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.