Apparatus and method for drying stacks of sheet material
US5522157A · kind A · utility
1Cited by
19References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Oct 11, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D15/027
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Stacks (16) of sheet material are moved on a conveyor (12, 14) between air manifolds (18, 20) and guide pins (19, 21); so that, drying gas is directed between the sheets of the stacks to cause the stacks to expand to form fluffed stacks 28 through which air moves readily to dry the sheets. A compression roller (26) is used to expel air from the fluffed stack and return the stack essentially to its original height. A reduction in tendency to curl is achieved in low relative humidity environments for sheets of photographic film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.