Process and apparatus for stacking sheets, such as plates, leaves and foils
US5522693A · kind A · utility
3Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1995 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Feb 17, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2301/4212
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Plates, leaves, foils or similar sheet material is led to a stack by a belt transporter, wherein a negative pressure holds the sheet to the moving belt. The source of negative pressure, such as a vacuum chamber, is continuously applied to the transport belt, but the negative pressure between the belt and the sheet is passively interrupted by the sheet itself, as the sheet is transported beyond a predetermined position. Once established, the predetermined position results in the sheets being deposited consistently on the stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.