Apparatus for popping popcorn
US4438682A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1982 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Dec 6, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23L7/183
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A popcorn popping machine adapted for cyclic operation has a feed conveyor for transporting unpopped corn from the reservoir to the base of the popping tube. A heating chamber has a plurality of heating elements over which air flows on its way through conveying ducts to the popping tube. A manually operable selector switch is adapted to be set at a plurality of positions. This switch controls electric circuitry which controls the operation of the feed conveyor for different preselected segments of a cyclic time period. The number of heating elements which are energized are also controlled by the setting of the selector switch. The selector switch also controls the setting of a damper in the air flow conveying duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.