Header end tack seal for reclosable package
US7364362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2004 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Oct 12, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/2516
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper-evident reclosable package having a header that is tack sealed to the zipper. A light tack, in the form of a light weld, is made at the end of the package header. The header is the top portion of the package and is designed to shroud the zipper. The header serves as a tamper-evident feature, and also serves to maintain cleanliness and aesthetics of the package. The header must be tom before a person can gain access to the contents of the package. Typically, means for preferential tearing are provided for easy removal of the header. The tack seal contributes to the maintenance of the cleanliness and aesthetics of the package, while still allowing easy removal of the header. The tack is light (i.e., low bond strength or pull-off force) in order to not make it significantly more difficult to open the package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.