Liquid transfer system and method
US5546153A · kind A · utility
1Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1995 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Jan 12, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7501
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid transfer system particularly suited for transferring a processing chemical between a reservoir and a tank in a photographic processing apparatus, comprises a liquid reservoir having an outlet which is connectable to the tank in the processing apparatus. The reservoir is connected to a source of pressurized gas which forces liquid to be transferred from the reservoir to the tank. The outlet of the reservoir is provided with a valve arrangement which serves to close the reservoir outlet when the liquid level in the reservoir drops below a predetermined level and prevents pressurized gas from escaping from the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.