Tamper evident resealable closure
US7963413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2006 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Nov 11, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container for a food product including a tamper-evident closure which forms an opening of a container. The closure comprises a sealing layer, adhesively sealed to the top of the container around the opening. The sealing layer is releasable from the container by pulling back on the sealing layer and resealable against the top layer to seal the opening when the sealing layer is moved back against the top. The tamper-evident feature comprises a portion of the top adjacent the opening and covered by the sealing layer, which extends from a position spaced from, and extends towards and terminates at the opening of the container. A portion of the tamper-evident feature falls into the container after the sealing layer has been pulled back for a first time to thereby indicate that the container has been previously opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.