Ventilated produce package, and method of making the same
US5171593A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Oct 15, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2205/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of wrapping a tray of produce or other articles requiring ventilation is provided. A ventilated package produced in accordance with the method is also provided. In accordance with the method, a sheet of flexible plastic film is applied to an open ended tray. The sheet includes a perforated portion which is bounded by non-perforated lateral edge portions. The sheet is positioned with respect to the tray such that the perforated portion is located over the open end of the tray while the non-perforated lateral edge portions extend over opposing portions of the rim of the tray and down the side walls thereof. The sheet is stretched in such a manner that the non-perforated lateral edge portions are subject to more severe stretching than the perforated portion of the sheet. The sheet accordingly will not tend to tear despite the presence of perforations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.