Molded plastic pail with double lock
US6688483B2 · kind B2 · utility
37Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Nov 21, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2543/0099
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A molded plastic container and closure is provided with a double lock, the top lock being formed by the container rim and a protrusion on the inside of the closure channel. The bottom lock is formed by a segmented flange on the container sidewall and a second annular protrusion on the inside of the closure skirt. A zig-zag tear line allows the second lock to be removed thereby to create alternating areas of greater and lesser clearance between the newly formed skirt edge and a second, lower flange on the container sidewall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.