Method and apparatus for reducing air entrapment in rotary inking systems
US4263848A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1980 |
| Grant date | Apr 28, 1981 |
| Priority date | — |
| Expiry date | Feb 8, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F31/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Method of reducing air entrapment in rotary inking systems of the type wherein an inking cylinder rotates through an inking reservoir, including defining a plurality of curvate baffles transversely within said reservoir and tangentially with respect to the path of the inking cylinder, so as to squeeze entrapped air out of the ink; venting excess air from the reservoir and scraping the surface of the rotating cylinder after inking. A suggested diffusion structure includes a plurality of transverse rods positioned in the reservoir in an arcuate array tangential to the path of rotation of the inking cylinder, such that ink is "squeezed" between each rod and the rotating inking cylinder surface to force out entrapped air bubbles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.