Internal air circulation system for lanham oven
US5040974A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1990 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Mar 27, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA21B1/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A bakery oven of the type employing a continuous conveyor therein for carrying goods to be baked through an oven enclosure includes an air distribution system adapted to direct heated air from near the top wall of the oven enclosure to the bottom and sides thereof. The air distribution means includes a fan mounted on the top wall of the oven which includes at least one fan blade located within the oven enclosure, a fan shaft secured to the fan blade and extending through the enclosure top. The fan shaft is mounted on the top of the oven for rotation and is driven by a separate motor also mounted on the top of the enclosure in spaced relation to the shaft. A drive belt is provided to transmit rotary power from the motor to the shaft. As a result, the shaft is fully exposed for air cooling and heat from the interior of the oven is not transmitted to the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.