US 6,712,239 B2 · System and method for accurately blending fluids

Abstract

A fluid delivery system includes one or more measure modules for measuring and delivering predetermined volumes of one or more different fluids. Each measure module includes a fluid inlet port, a retention vessel, an overflow aperture to allow fluid in excess of the desired volume to flow out of the vessel, and an outlet port for dispensing the retained fluid. A calibrating rod adjustably occupies a portion of the volume of the vessel to facilitate precise adjustment of the volume of fluid dispensed by the measure module. In one particular embodiment, a blender includes a plurality of measure modules whose outputs are coupled together to produce a mixture having a composition defined by the relative capacities of the vessels of the various measure modules. In another particular embodiment, one blender dilutes a chemical concentrate, and provides the diluted mixture to another blender, which further dilutes the mixture.

Claims41

Dependent claims

A fluid delivery system, including at least one measure module, said measure module comprising:

a fluid inlet port;
a vessel for receiving and retaining a fluid via said fluid inlet port;
an aperture positioned to define a predetermined retention capacity of said vessel by allowing excess fluid to flow out of said vessel;
a calibrating device for selectively adjusting said predetermined retention capacity of said vessel, whereby as said calibrating device is adjusted to occupy a greater volume of said vessel, said predetermined retention capacity decreases;
and
a fluid outlet port for dispensing said retained fluid.

3 more elements

Dependencies are inferred from the claim text.

System and method for accurately blending fluids

Life of this patent

System and method for accurately blending fluids

Life of this patent

Abstract

Claims41