Improvements in or relating to impregnation of fluid-permeable bodies.

摘要

An inexpensive, readily handled receptacle for use in the bulk impregnation of timber by vacuum impregnation is made offlexible fluid-impermeable material and, over parts of its walls, is of double thickness to form closed pockets 1 that can be inflated to form a container of rectangular shape hinged at 5 along one of its side faces to provide a sealable opening for loading and unloading. The pockets 1 have a valve (not shown) for inflating them with air; the receptacle has inlet and outlet ports (not shown) for evacuating the receptacle and introducing impregnant. Preferably, the receptacle is supported in a two-part rectangular frame hinged along one side face.