Crack-resistant container lid having opening
US6338421B1 · kind B1 · utility
6Cited by
38References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1999 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Nov 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container lid that is adapted to be placed on a container includes an upstanding side wall and a top wall. The top wall is provided with an opening or through hole for allowing the contents within the container to be mixed while the lid remains on the container. The top wall of the container lid is configured to strengthen and increase the rigidity of the portion of the top wall surrounding the opening. The container lid can also be provided with characteristics allowing the portion of the lid surrounding the opening to flex when a force is applied to the periphery of the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.