Method and apparatus for making bag-type packages
US4448010A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1981 |
| Grant date | May 15, 1984 |
| Priority date | — |
| Expiry date | Dec 14, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2160/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for making bag-type packages from strip web material in which a lead end portion of strip web material is formed around a forward end portion of a mandrel and the sleeve is advanced with the mandrel during at least a portion of the forward stroke of the mandrel. A sleeve opening device on the lead end of the mandrel is extended through the end of the sleeve to open the sleeve and the mandrel is retracted and transversely sealed and severed at a location inwardly of its open end to form a bag. A turret is provided for gripping the open end of the bag at a bag loading station and transferring the bag with its open end up sequentially to a bag filling station and to a top closing and sealing station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.