Tamper-evident, tear-open resealable package
US11254471B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 6, 2017 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Sep 6, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D77/30
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper-evident package utilizes a transparent resealable adhesive structure such as a tape or a label to cover the closure opening. Upon a first opening of the package frangible portions of the package front between adjacent arcuate cuts and slits defining the opening are torn. This tearing distorts the packaging film so that re-registration of the opposing lateral edges upon reclosing is not possible. This results in a package which is visually tamper-evident. The tamper-evident condition can be enhanced by graphics or other printing on the front of the package in the area of the closure to make the misalignment of a resealed closure viewed through the transparent structure more visually apparent. In one embodiment of the invention a series of arcuate cuts are centered laterally and are flanked on the right and left sides by two continuous wavy slits which form a portion of the closure opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.