Patent ID: 7073531

Claim:
A valve block for a dosing device with an arrangement of dosing means, said valve block comprising, on a first face, a first pattern of first mouths ( 15 ) to be aligned with the dosing means and, on a second face opposite the first face, second mouths ( 16 ) each corresponding to one of the first mouths and a plurality of channel systems ( 20 ) each comprising at least one main connector ( 23 ), wherein the valve block ( 1 ) comprises a plurality of plates ( 10 , 11 , 12 , 13 ) superimposed in a stack and each of said plates defining a plurality of through holes ( 14 ) arranged in the first pattern, the plates being laterally displaceable relative to each other for selectively connecting the first mouths ( 15 ) with either a second mouth ( 16 ) each or with one of the channel systems, wherein an outermost plate in the stack is a connector plate ( 10 ) and all other plates are identical channel plates ( 11 , 12 , 13 ), wherein the channel plates, in addition to the through holes ( 14 ), comprise on a first face a channel system ( 20 ) with channels ( 21 ) running into a main connector ( 23 ) arranged on a narrow side of the channel plate, wherein all channels are trough-shaped and are closed by a second face of a superimposed plate and wherein the channels ( 21 ) are arranged in a second pattern, which is matched to the first pattern and laterally displaced relative to the first pattern.