Side vented and shielded microwave pizza carton
US4567341A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Aug 2, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/903
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A microwave carton (2) including a bottom tray-shaped portion (4) having upstanding inner side wall panels (10,12,14,16) and a telescoping top portion (6) having downwardly extending side wall panels (30,32,34,36) wherein a layer (28) of microwave reflective material covers the entire interior surface of the top portion (6) and a vapor escape means (24) is provided for allowing vapor generated within the carton (2) to be vented to the exterior of the carton (2) by passing through a space formed between one inner side wall (10,12,13,16) and one outer side wall (30,32,34,36). The vapor escape means (24) may be formed by removing an upper portion of one of the inner side walls (10,12,14,16). One of each pair of corresponding sidewalls may be angled to for a space therebetween through which vapor may escape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.