Fountain solution supply system
US5619920A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F33/0054
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A system for supplying dampening fluid to a lithographic press dampening system. The system prevents dampening fluid starvation at a metering nip located between dampening system rollers, and minimizes contamination of the dampening fluid in the dampening system. A pre-determined distance is maintained between (1) the surface of a roller partially immersed in dampening fluid and (2) several surfaces of a fluid collection pan, so as to move contaminants from a back region of the collection pan to a front region of the collection pan for removal. Sensors are used to determine the proper level of dampening fluid within the collection pan to avoid nip starvation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.