Easy open flexible bag filled with compressed flexible articles and method and apparatus for making same
US4934535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Apr 4, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D85/07
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An easy open flexible bag containing one or more stacks of flexible articles maintained in a state of compression in a direction substantially parallel to their thickness. For products such as disposable absorbent baby diapers, catamenial pads, incontinent briefs and the like, the degree of compression within the bag may be as much as 50% or more when compared to the uncompressed thickness of the stack of articles in question. In a particularly preferred embodiment, the bag totally encloses the stack or stacks of compressed flexible articles exhibits a substantially rectilinear shape. The bag preferably includes an integral carrying handle. The end panels and at least one pair of either the front and back or the top and bottom panels of the bag are subject to tension imposed by the stack of compressed flexible articles. This leaves at least one pair of panels, preferably the top and bottom panels, in a substantially untensioned condition. One of the substantially untensioned top and bottom panels contains an easily visible, unobstructed tear initiating device which comprises a portion of the easy open device for the bag. The tear initiating device can be readily activated by the en…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.