Feeding apparatus for paperboard sheets
US4643413A · kind A · utility
9Cited by
19References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1984 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Mar 7, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H3/124
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet feeder for corrugated paperboard sheets utilizing timed intermittently rotatable belts against which either the top or bottom sheet, depending on the configuration chosen, of a stack is brought into contact to feed such sheet in synchronism with adjacent processing machinery and utilizing continuously applied negative atmospheric pressure to hold such sheet against the belts without the need for valving or otherwise breaking the suction pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.