Flexible storage bag with selectively-activatible closure
US6149304A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 1997 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | May 9, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/01
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention provides a flexible storage bag comprising at least one sheet of flexible sheet material assembled to form a semi-enclosed container. The bag has an opening and a closure means for sealing the opening to convert the semi-enclosed container to a closed container. The closure means comprises a strip of material forming at least a portion of the periphery of the opening having a first side facing inwardly toward the opening and a second side facing outwardly of the opening. The first side exhibits an adhesion peel force after activation by a user which is greater than an adhesion peel force exhibited prior to activation by a user. In a preferred embodiment, the flexible storage bag includes at least one auxiliary venting opening located remotely from the primary opening and having an auxiliary closure means for sealing the auxiliary opening. The auxiliary opening has a periphery, and the auxiliary closure means comprises a piece of material forming at least a portion of the periphery and having a first side facing inwardly toward the opening and a second side facing outwardly of the opening. The first side exhibits an adhesion peel force after activation by a use…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.