Paperboard container for liquids including an improved structure to prevent fitment rotation
US5803346A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D77/065
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An upright tubular shell has a top end, a bottom end, and a plurality of side-by-side sidewalls. The shell is constructed of a plurality of layers of paperboard material. A first one of the sidewalls defines a first portion adjacent a first upright edge of the first sidewall and has a thickness less than the thickness of the adjacent portion of the first sidewall. The first portion also comprises less than all of the plurality of layers of the paperboard material. The first portion overlaps and is attached to a second one of the sidewalls. A flexible impervious liner with an attached fitment is located within the shell. An outer opening is defined in one of the sidewalls proximate the bottom end for receiving a portion of the fitment. A bottom cap defines a first opening, a second opening, and a third opening. The first opening overlays the second opening. The outer opening is interdisposed between and aligned with the third and first openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.