Back to results
US 4,223,451 AGranted
Method for drying timber
OwnerErnesto G. Pagnozzi, Vincenzo Pagnozziinventors
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerErnesto G. Pagnozzi, Vincenzo Pagnozziinventors
Estimating the term…
A method of kiln drying timber in a kiln chamber by directing a restricted jet of hot air or gas over timbers in the stack and cyclically varying the direction of the jet in order to play the heated air or gas over the whole of the stack. A kiln for performing the method comprises a generally cylindrical kiln chamber having an elongate nozzle along one wall parallel to the axis of the cylinder and pivotable about an axis parallel to the axis of the cylinder; a group of fans arranged in a row parallel to the axis of the chamber draws gas or air from within the chamber and directs it along conduits one surface of which is a heat exchange surface to the nozzle where it is directed back into the kiln chamber. The heat exchange surface of the conduits may be heated in any known way, by means of heaters or by forming it as one surface of a water jacket.
A method for drying timber in a stack pervious to drying gas flow in a kiln including a drying chamber, heating means for heating said drying gas, nozzle means movably mounted in one side of said chamber for directing a jet of hot gas against a restricted region of a first side of said stack and periodically displacing said jet progressively over all regions of said first side of said stack and aspirating means for drawing said drying gas out of said chamber, comprising the following method steps:
Dependencies are inferred from the claim text.