Impregnation tank for wood
OwnerNiels Moldrupinventor
Life of this patent
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Abstract
The apparatus and the method for impregnation of wood. The apparatus has a closable tank which defines our interior space and comprises a vessel with at least one door for closing the vessel to isolate the interior space from the exterior of the tank. The tank being capable of supporting a pressure difference between the interior space and the exterior of the tank. The apparatus contains a device for supplying liquid to and receiving from the interior space of the tank, a device for establishing a pressure difference between the interior space and the exterior of the tank, a structure which is disposed in the interior space for holding wood to be treated and a structure supporting the holding structure to permit rotation of the holding structure about a non-vertical axis while holding wood to be treated.
Claims6
A method for treatment of a timber in an enclosed vessel capable of sustaining pressure and/or vaccuum, which comprises sequentially:
- (a) placing the timber inside of the enclosed vessel;
- (b) rotating of said timber inside of said enclosed vessel containing a liquid, about a non-vertical axis of said vessel for at least several full revolutions in a such manner that the liquid content of said vessel is kept at a volume covering less than 100 percent of said timber at least during a part of each rotation;
- (c) removing said liquid from said vessel;
- (d) draining of said timber inside of said vessel by continuous rotating of said timber inside of said enclosed vessel about non-vertical axis of said vessel;
- (e) removing said timber from said chamber.
Dependencies are inferred from the claim text.