Muffin tray and process for baking muffins
US5632924A · kind A · utility
17Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1994 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Oct 26, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S249/01
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A muffin tray made from modified crystalline polyethylene terephthalate has a plurality of baking wells with heat-transfer inhibiting bottoms, and protruding circumferential ridges to accommodate differential thermal expansion while limiting related distortion. The muffin tray is used in a baking process having a baking step using a spiral oven with a water bath therein. Hot air is directed into close surface contact with the water pool and then into cross-flow relationship with the muffin trays to effect baking of muffin batter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.