Combination powder applying and/or infrared drying attachment for printing presses
US4827843A · kind A · utility
0Cited by
19References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1988 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Jul 29, 2008 |
Classification
- Technology area (CPC —)General
Abstract
The attachment is selectively usable to apply heat, anti-offset powder, or both heat and powder to freshly printed sheets passing to the sheet collection station of a printing press. Operation of the heat and/or powder applying assemblies is changed automatically to compensate for changes in the press speed. The location at which heat is applied to the sheets is upstream from that at which powder is applied, and is spaced from the collection station. Shields and air currents assist in regulating heat transfer. A compact housing assembly supports both heat and powder applying components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.