Reclosable fastener strip with tamper evident feature
US5964532A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Oct 15, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/2525
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A reclosable package comprises opposing wall panels and a reclosable seal. The opposing wall panels are joined on three sides such as to create a receptacle space having a mouth at one end. The reclosable seal extends along the one end and including a first track and a second track. The first track includes a first reclosable element and a first fin portion extending downward from the first reclosable element toward the receptacle space. The first track is joined to one of the wall panels. The second track includes a second reclosable element and a second fin portion extending downward from the second reclosable element toward the receptacle space. The second track is joined to the other of the wall panels. The first and second reclosable elements are releasably engageable to each other. In one embodiment, the first and second fin portions are joined to each other along a one-time breakable preferential area of weakness to prevent tampering with the package prior to being opened. In another embodiment, the mouth end is pleated and forms a one-time breakable preferential area of weakness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.