Method and apparatus for evacuating shrink film packages
US6491166B1 · kind B1 · utility
12Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Nov 20, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B53/063
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A heat shrinkable film package and a method for packaging food and non-food products is disclosed which includes a valve through which the package is evacuated during the heat shrinking step of the packaging process. Employing the valve of the present invention precludes the need for puncturing the film prior to heat shrinking. Thus, a wide variety of food products may be packaged in a manner more typically reserved for non-food products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.