Barrier carton with reclosable pour spout
US4768703A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1986 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Dec 1, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/54
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An open ended carton including a membrane liner and a cover having a peripherally depending flange which overlies a top end portion of the carton. A transverse score line in the cover and contiguous perforation lines in the flange divide the cover into first and second sections to provide a hinged pour spout. An extension panel attached to a peripheral edge of the carton includes a terminal section which is heat sealed to an interior section of the peripheral cover flange. Severance of a hinged section of the extension panel defines an indentation between a top panel in the cover and the terminal section which receives the hinged section for locking reclosure of the cover. The cover is locked in open position by inward flexing of sections of the peripheral cover flange which are received in the carton opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.