Automatic air heating system for vending machines
US5419239A · kind A · utility
29Cited by
37References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Feb 22, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/0078
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention relates to a heating system which includes a product dispensing assembly, a heating basket mounted for rotation within a closed-loop air heating system, a separator for removing entrained particulates from the circulating air stream, and an air exchange system for refreshing air in the closed-loop air heating system. The product dispensing assembly accurately meters a portion of the product, and includes a hopper with an helix auger, a weigh scale and a trap door for dispensing the metered product into the heating basket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.