Patent ID: 8147756

Claim:
Device for carrying out a chemical or physical treatment, comprising: a plurality of reaction vessels, a turntable comprising a circular plate having an external toothing attached to a vertical side circumference of said plate, the upper surface of said plate supports said plurality of reaction vessels, a stationary frame with said turntable arranged on the frame such that said turntable can rotate about a center axis, a valve assembly comprising a disk-shaped, rotatable valve part, which is arranged concentrically with respect to said center axis and is connected to said turntable, and a stationary valve part, which is positioned opposite said rotatable valve part and is connected to said frame, wherein rotation of said rotatable valve part moves ports of said rotatable valve part to be opposite ports of said stationary valve part, and connections are present between said rotatable valve part and said reaction vessels and between said stationary valve part and feed/discharge lines, and a motor is coupled to a toothed belt or chain, said toothed belt or chain is coupled to said external toothing of said turntable, to thereby impart an indexing movement to said rotatable valve part.