Center press outer seal bowl lid
US4471880A · kind A · utility
123Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1983 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Oct 3, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2543/00842
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A resilient plastic lid closure (10) for the upper rim (20) or a bowl (15) or the like, said lid having a downturned periphery (16) terminating in an outer rim flange (18) for snapping over the rim (20) when pressed downwardly at the medial portion (11) of the lid, thereby forming a tight seal with the outer surface of the bowl rim (20) when pressure on the medial portion (11) of the lid (10) is released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.