Microwave food heating package with accordion pleats
US5334820A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1992 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Feb 28, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S99/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A microwave food heating package for food pieces such as french fried potatoes or fish sticks is described. The package includes one or more susceptor sheets folded in alternately opposite directions to provide accordion folds therein which define V-shaped pockets that serve as heating chambers for individual pieces of food. The susceptor sheet is formed from a microwave energy-absorbing material adapted to heat, brown or crispen the surfaces of the food sticks. The heating chambers preferably enclose the food sticks on all major surfaces and can be made by layering, i.e. stacking, segments of the accordion-pleated susceptor sheet material one above another to form individual heating chambers for the food pieces to crispen, toast or brown their surfaces during heating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.