Impregnation of fluid-permeable bodies

Details Impregnation of fluid-permeable bodies Impregnation of fluid-permeable bodies

B - Operations, Transporting

27

K

117/120, 32/25

B27K 3/02 (2006.01) B27K 3/08 (2006.01)

Patent

CA 1094894

A B S T R A C T A body, or stack of bodies, made of timber or of other organic fluid-permeable material is impregnated with an impregnant by introducing the body or stack into a receptacle of fluid-impermeable material through an opening therein, the flexible receptacle being supported by and secured (e.g. by springs) to a substantially rigid structure in such a way that the receptacle is held open for the introduction through said opening of the body or stack. The opening in the receptacle is sealed to form a fluid-tight enclosure and air is evacuated from within the enclosure and ???? voids in the or each body housed therein to cause the flexible receptacle to collapse around the body or stack. Impregnant is allowed to enter the evacuated enclosure and to flow through and impregnate the or each body.

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