Tear-open packing means, particularly for liquids such as oil or the like
US4154346A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1977 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Oct 18, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D77/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The packing means of this invention includes a liquid impervious inner bag that is sealed at its upper end and which is closed at its bottom end. The bag is positioned within a tubular folding box which is closed at the bottom and which has, at its upper end, closure flaps hinged to three of the sidewalls. One of the closure flaps is adhesively secured to the sealed end of the inner bag so that when the adhesively secured closure flap, or a portion thereof, is torn away the inner bag is automatically opened and a pouring spout is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.