Selectively closeable plastic film bag
US6012844A · kind A · utility
Inventors
Key dates
| Filing date | Feb 16, 1999 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Feb 16, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A selectively closeable plastic film bag is formed with front and rear plastic film panels. The bag includes a bottom and side edges and each of the front and rear panels include a top edge whereat an opening is provided into the bag cavity. An adhesive strip is provided on the inside surface of the front or rear panels extending longitudinally thereacross between the bag side edges. The adhesive strip is placed in a pattern extending at an angle upwardly from each of the side edges to a generally linear portion therebetween. A release liner is provided between the front and rear panels and is located partially over or above the adhesive strip at the side edges and below the linear adhesive strip portion. The adhesive strip portion covered by the release liner is prevented from coming in contact with the other bag panel thereby retaining the bag open. The release liner is detachably attachable to the adhesive strip. For closing the bag, the release liner is pulled out from between the panels causing the adhesive strip to come in contact therewith. The adhesive strip extends uninterrupted from side edge to side edge thereby making the closure leakproof. Pocket panels are attached to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.