High-strength container with interior button latch
US5979687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Jul 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/1033
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A plastic container comprises a lid and a base. The lid includes a top wall and a lid side wall extending downward from the top wall. The base includes a bottom wall and a base side wall extending upward from the bottom wall. In accordance with one aspect of the present invention, the lid includes a first stepped flange extending laterally outward from a lower portion of the lid side wall, and the base includes a second stepped flange extending laterally outward from an upper portion of the base side wall. Internal portions of the respective first and second stepped flanges form a button latch for securing locking the container in a closed position. In accordance with another aspect of the present invention, the lid side wall includes a plurality of facets interconnected at corners. The corners are arced outwardly in radial cross-sections taken generally perpendicular to the top wall and through the respective corners, and the facets are arced inwardly in a cross-section taken generally parallel to the top wall and through the facets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.