Patent ID: 6997400

Claim:
A distribution manifold for distributing gas and/or liquid phase substance from an inlet to multiple outlets with reduced variations in distribution comprising: a. a body; b. an inlet to the body; c. a plurality of outlets from the body; d. a member comprising an external rotatable fluid pathway including an entry end in fluid communication with the inlet of the body and an exit end in fluid communication with the plurality of outlets of the body, the member comprising a rotatable impeller which includes an intermediate portion which includes the fluid pathway, which is defined at least in part by surfaces of the impeller, the surfaces on the intermediate portion comprising a wall of an external supply groove, wherein the cross-sectional area of the supply groove is generally equal to the cross sectional area of the inlet of the body; e. a distribution void in fluid communication between the exit end of the fluid pathway and the plurality of outlets; f. so that the substance passes through and out the exit end of the fluid pathway and is distributed to the plurality of outlets through the distribution void.