Importance

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Abstract

A method and apparatus for combining and mixing together a plurality of liquids to form a blend. The invention discloses reservoir supplied intermittently operated servo driven pumps, and optionally discrete liquid flow meters, and precise, encoded, fast-acting flow shut-off devices to create and define repeated time synchronized ratio defined doses of the liquids. One or more liquids, designated secondary streams, are synchronously dosed into a secondary streams injection assembly which is located generally at the suction port of the primary liquid stream dosing pump. The primary stream pump, during its synchronized intermittent operation, withdraws ratio defined primary stream and secondary stream liquids from the injection assembly. The primary stream pump serves also to propel the combined liquids ratio dosed streams into and through mixing structure on the discharge of the primary stream pump. The mixed streams are then received by a final blend tank of desired capacity where blended liquids are available for use on a continuous stream or continuous flow basis, at any flow rate up to a defined maximum. The entire blender apparatus may be started at will and stopped at the completion of any given time synchronized streams ratio dose cycle.

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First Claim