Self-closing manually re-openable package
US10532856B2 · kind B2 · utility
0Cited by
33References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2015 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Dec 31, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D75/5805
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A package which may be opened and closed using only one hand, without the need for any tools or a second hand subsequent to initial opening, is provided as a hand-held sized, flexible thermoplastic bag having a self-closing, manually openable closure employing at least two resilient stays, each of which is covered at least in part by a cover film which may be a non-shrink film or a heat shrinkable film. The stays and cover films form in conjunction with the package body opposing rolled edges or package wall ridges that facilitate opening and create a close-fitting interior closure surface along the abutting cover films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.