Patent ID: 6971947

Claim:
In an airless blaster arrangement for surface treatment of objects with blasting agent, said arrangement comprising: a blasting agent supply tube, an impeller wheel comprising several axially-positioned thrower blades that are attached to at least one side disk, wherein a blasting agent discharge area is enclosed between each pair of thrower blades, the improvement wherein a distributor with a star-shaped cross-section formed from several guide blades extends coaxially with the impeller wheel and is connected with it so that it rotates with the impeller wheel, said distributor being surrounded by a fixed shell tube which has an aperture in a sidewall thereof at its periphery to which the supply tube is connected; wherein each guide blade of the distributor is connected to a thrower blade of the impeller wheel; and wherein a blasting agent guide channel of the distributor formed between each guide blade opens into an inner blasting agent discharge area of the impeller wheel.