Double-walled container
US12017825B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2020 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Jun 23, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/05
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A single piece container made of cardboard, paperboard or other flexible sheet material which provides improved strength properties, but without the need to laminate layers of sheet material together by having an outer shell comprising sidewall panels (3, 5, 7, 9) and a set of inner sidewall panels (11, 13, 15, 17) connected to the outer shell at foldlines. The set of inner sidewall panels includes a first inner sidewall panel in facing relationship with the inner surface of a first outer shell sidewall panel and integrally connected to one of the outer shell sidewall panels along a foldline, and a first set of further inner sidewall panels integrally connected to the first inner sidewall panel along a foldline, the sidewall panels of the set of further inner sidewall panels being hingedly connected to one another about respective foldlines. The set of inner sidewall panels also includes a second set of further inner sidewall panels integrally connected to the first inner sidewall panel along a foldline, the sidewall panels of the second set of further inner sidewall panels being hingedly connected to one another about respective foldlines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.