Method and apparatus for continuous package making
US5052166A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | May 24, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/067
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of continuously making packages from groups of stacked items includes the steps of advancing consecutive groups of flat, edgewise standing, stacked items on a conveyor while supporting each item group by holders engaging each article group; during the advancing step, wrapping a wrapper sheet about an item group by a wrapper folding device, whereby the wrapper sheet supports and holds together the items in consecutive item groups; removing the holders from a just-wrapped article group; drawing the wrapper sheet, together with an item group wrapped in the wrapper sheet for conveying the item groups after the holders are removed therefrom; and withdrawing air from the wrapper sheet at a suction location where at least a partial wrapping has been completed, for generating a vacuum inside the wrapper sheet for causing the wrapper sheet to be pressed against edges of items in wrapped item groups downstream of the suction location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.