Method and apparatus for wrapping a folio ream of paper
US9290283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Jul 4, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B51/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for wrapping a folio ream. The method comprises pre-creasing a wrap sheet and driving the ream into the wrap sheet toward a fold position. A bubble of wrap is formed in the wrap sheet, which is cut while the ream advances, such that a lower flap of the wrap sheet extends beyond the rear edge of the ream. An upper flap fold is formed on the rear edge of the ream, and glue is applied to the lower flap as it is held flat via a vacuum. The lower flap of the wrap sheet is then folded in an upward direction, while the vacuum simultaneously applies a force to an opposite side of the lower flap to keep it flat during folding. The ream is reversed to compress the glue between the lower and upper flaps, forming a rear edge seam on the folio ream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.