Clamshell package with curved card
US6330945A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Dec 18, 2001 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D75/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hanging clamshell package has a thermoformed plastic blister with a cover pivotally connected by a hinge to a base. The cover has a curved rearwardly opening front wall. A product bubble protrudes frontwardly from the cover front wall and has a curved front face. A bubble top wall extends between the cover front wall and the bubble front face, and beneath the bubble top wall, a bubble bottom wall extends between the cover front wall and the bubble front face, the forward extension of the bubble top wall is less than the forward extension of the bubble bottom wall, tending to counteract the visual impact of product settling. The base has a curved rearwardly opening base front wall of approximately the same curvature as the cover front wall. A card is clasped between the cover front wall and the base front and is thereby conformed to a curvature approximately matching that of the cover front wall. When a peg is inserted though a package hang hole above the product bubble, the low center of gravity of the loaded package causes it to pivot rearwardly, bringing the curved front wall of the cover to a more nearly vertical orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.