Tunnel-type conveyor oven having two types of heat sources
US5906485A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1998 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Feb 27, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D99/0035
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A tunnel-type conveyor oven having two types of heat sources is provided. The oven includes a conveyor for carrying items through the oven along a conveyor path. The conveyor has first and second opposite sides. A plurality of radiant heaters are located transverse to and extend across the conveyor path. The radiant heaters are spaced apart in a direction of the conveyor path. Each radiant heater includes an inner tube having a wall with a plurality of openings defined therethrough, an open first end and a second end. A burner is directed into the open first end of the inner tube. An outer tube is located around the inner tube. The outer tube has an outer surface which is adapted to radiate heat, a first end and a second end. An exhaust outlet is located on the second end of the outer tube. The radiant heaters are arranged such that with every other heater, the burners are located on the first side of the conveyor, and with the remaining heaters, the burners are located on the second side of the conveyor for uniform radiant heat distribution across the conveyor. An exhaust manifold is connected to the exhaust outlet of at least one of the heaters. A penthouse chamber is located abo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.