10 with each upper end being retained in the support plate 11 and suitably connected to a spray gun the strainer basket 15 corresponds essentially to the strainer basket 15 of fig3 and encloses both pipes 10 at a distance thereto depending on circumstances and requirements it is certainly possible to provide the powder fluidizing and transferring apparatus with any of the other strainer baskets shown in fig2 and 5 in order to enclose the pipes 10 in accordance with fig7 it will be appreciated by persons skilled in the art that the entire arrangement of fluidizing and transferring apparatus and spray guns may contain additional elements which do not appear in the foregoing figures for example in order to allow each spray gun to be individually supplied with powder the connection of each pipe 10 to the pertaining spray gun may be controlled by a suitable control and valve mechanism also the suction and transport pipe may be part of a pump or an injector in order to allow withdrawal of the powder from the container and transport to the spray gun however these elements like other necessary elements are not part of the invention and have been omitted from the figures for the sake of simplicity apart from possible modifications of the shape size and arrangement of the strainer basket and the arrangement of the vibrators it is also possible to separate the suction and transport pipe 10 from the unit comprised of strainer basket 15 and fluidizing unit 13 14 14a in this case this unit can be introduced into the powdered material first and subsequently the pipe or pipes 10 may then be separately inserted while the invention has been illustrated and described as embodied in a method.