Fluid dispensing device

Claim 1

A fluid dispensing device for providing a controlled ratio of a mixture of fluids introduced to the device comprising: a container having an inlet section and an outlet section; means within said container for treating a fluid mixture introduced through the inlet section; inlet means on said inlet section adapted to be connected to a source of a first fluid; said inlet section having at least one opening therein of a predetermined size and configuration; a sleeve movably mounted on said inlet section and having at least one opening therein of a predetermined size and configuration and positioned so that movement of said sleeve with respect to said inlet section will determine the relative alignment of said openings whereby exposure of the at least one opening in the inlet section to a source of a second fluid will be varied and the ratio of second fluid with respect to first fluid in the mixture introduced to the container is controlled; outlet means at said outlet section for discharging the treated fluid mixture; indicator means positioned on the container and responsive to the position of the openings in said sleeve and said inlet section to indicate the relative percentages of the first and second fluids in the mixture; the inlet section includes a cylindrical throat section and the openings in the inlet section being lateral openings in the cylindrically shaped throat section; the sleeve being substantially cylindrical in shape and in surrounding engagement with the cylindrical throat section and having its openings laterally positioned thereon; said cylindrical sleeve being rotatable about said cylindrical throat section to bring the lateral openings in the throat section and the sleeve into and out of alignment with one another; at least two lateral openings in the cylindrical throat section and being spaced about the circumference of the throat section and at least one being irregular in configuration to facilitate introduction of a multiplicity of different accurate percentages of fluid mixtures; the irregularly shaped lateral opening being of substantially gradually increasing diameter as it extends around the circumferential surface of the throat section thereby providing for gradual and closely controlled adjustment of the ratio between the fluids in the mixture; and the indicia on the annular flange arranged to coincide with the various alignments between the openings in the cylindrical throat section and the sleeve so as to provide readings of percent of the first fluid in the mixture of 30 percent and at least four other accurate and discrete percentages of first fluid.