Method and apparatus for lining containers
US4052931A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Sep 24, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2120/404
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A bag-type liner is applied interiorly of a container, such as a corrugated carton or box, by inserting an open end of the liner over an open end of the container and thereafter creating a vacuum within the container and liner to simultaneously draw the liner within the container. In a first apparatus embodiment of this invention, the vacuum is created by moving a partially opened bottom of the container over a vacuum opening formed in the platen. In a second apparatus embodiment of this invention, a pair of vacuum plenums are movably mounted adjacent to sides and upper portions of the container to draw the vacuum over and between upper closure flaps connected to the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.