Method and apparatus for securing a sheet material to a rotating vacuum drum using a sealing strip
US5090685A · kind A · utility
5Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Oct 2, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H5/226
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In a drum having a flexible sheet material removably held on to an outer surface thereof, a method for reducing aerodynamic lift of an edge of the material, comprising the step of introducing a thin sealing strip between the outer surface of the drum and an inner surface of the film at the edge of the material. The lift may be caused by the natural tendency of the sheet material to curl at its edges and may be exacerbated by the flow of air under the edges as the drum rotates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.