Ink fountain dividing key
US4513662A · kind A · utility
12Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1983 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Oct 18, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F31/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink fountain dividing key for use in an ink fountain of a rotary printing machine is disclosed. The ink fountain dividing key has a front face that is spaced from the peripheral surface of the ink fountain roller and which is curved with a radius of curvature the same as the radius of the ink fountain roller. A groove is formed on this curved front face of the key with the groove being supplied with compressed air at a pressure suitable to prevent ink flow from one side of the key to the other through the space between the key and the peripheral surface of the ink fountain roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.