Sheet folding apparatus with vacuum grip
US5842964A · kind A · utility
21Cited by
20References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1997 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Jul 1, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H45/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sequentially timed vacuum grip system holds a sheet and transports it through a folding nip defined by a pair of folding cylinders. At the nip, the folded edge of the sheet is released and simultaneously picked-up by the paired companion cylinder. Additional folds are achieved in the same manner by the use of additional cylinder pairs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.