Leaflet production
US8409067B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 11, 2009 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H29/008
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A leaflet is produced from a pre-printed sheet of material by folding the sheet with at least one crease-line along the line of advancement of the sheet but preferably with two or more such crease-lines so that the sheet is fan-folded. The crease-lines are squeezed by a roller nip and then the sheet is fed into a diametral slot in a mandrel of elliptical cross-section. The leading edge of the sheet is gripped within the slot and then the mandrel is rotated to wind the sheet around the outer surface thereof. The wound sheet is then removed from the mandrel and is squeezed through a roller nip so as to form a substantially flat folded leaflet. The leaflet may be converted to a booklet by joining together the overlying sheets along one folded edge of the compressed leaflet and slitting open the other folded edge of the compressed leaflet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.