Heated food service system
US4052589A · kind A · utility
48Cited by
20References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1975 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | Aug 4, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47B2031/026
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A food service system for institutional or other use is provided by a stack of insulated trays and a cart. In one embodiment the cart includes a heating and/or cooling source with an outlet and a return. The trays are provided with openings to permit the passage of heated or cooled air from the outlet through the stack to the return. In another embodiment the trays and cart are combined with a refrigeration unit and a heating unit to permit simultaneous heating and cooling of food portions held in the trays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.