Inventors:
Henry W. Schuette - Tigard OR
Martin N. Nye - Vancouver WA
Assignee:
Wellons, Inc. - Sherwood OR
International Classification:
F26B 2106
Abstract:
In a dry kiln, a plurality of in-tandem air control compartments and a fan between each pair of adjacent compartments. The fans are rotated in one direction only. The compartments have lateral air flow ports in which air valves are mounted. The fans are of opposite pitch and the valves are so alternately operated that although the fans blow the air unidirectionally, the air can be controlled to flow in one direction through the drying chamber of the kiln, or optionally in the opposite direction, for uniform drying purposes.