Dispenser for immiscible liquids

Claim 2

Apparatus for dispensing a pair of immiscible liquids, comprising a container adapted to receive and hold two immiscible liquids in stratified relationship with respect to each other; an exit nozzle for the container; and a tubular stem coupled with the exit nozzle for placing the latter in fluid communication with the interior of the container below the liquid level therein, said stem having a perforate, tubular segment and an imperforate sleeve in surrounding, spaced relationship to the segment, said sleeve having a closed upper end above the perforations of the stem and an open lower end and being adapted for isolating respective stratified portions of the two liquids from the main body of the container, said closed end of said sleeve preventing fluid communication between the perforations of the segment and the region above said liquid level, said segment extending throughout at least a major portion of the sleeve and being adapted for permitting the isolated liquids to flow thereinto from said sleeve and together toward the exit nozzle.

Claim 3

An apparatus as set forth in claim 1, wherein said sleeve has its closed end intermediate the ends of the stem and has its open end adjacent to the lower end of the stem.

Claim 4

In apparatus as set forth in claim 2, wherein said segment has a length sufficient to permit its lower end and the open end of the sleeve to be disposed adjacent to the bottom of the container.

Claim 5

In liquid dispensing apparatus of the type having a container and a fluid exit nozzle on the container, the improvement comprising: a tubular stem adapted to be coupled to the exit nozzle and to extend downwardly therefrom below the liquid level of the container, said stem including an imperforate sleeve for permitting a portion of a pair of liquids in the container to be isolated from the remainder of the liquids in the container and to be disposed in stratified relationship relative to each other, and a perforate segment within the sleeve and extending throughout a major portion of the length thereof, said sleeve having a closed upper end and an open lower end, the upper end of the sleeve being above the perforations of said segment, said closed end of said sleeve preventing fluid communication between the perforations of the segment and the region above said liquid level, said segment being adapted to permit the isolated liquids to flow together into and along the stem toward the exit nozzle when a force is exerted on the liquids in the container.

Claim 6

In liquid dispensing apparatus of the type having a container and a fluid exit nozzle on the container, the improvement comprising: a tubular stem adapted to be coupled to the exit nozzle and to extend downwardly therefrom below the liquid level of the container, said stem including an imperforate sleeve for permitting a portion of a pair of liquids in the container to be isolated from the remainder of the liquids in the container and to be disposed in stratified relationship relative to each other, and a perforate segment within the sleeve and extending throughout a major portion of the length thereof, said sleeve having a closed upper end and an open lower end, the upper end of the sleeve being above the perforations of said segment, said closed end of said sleeve preventing fluid communication between the perforations of the segment and the region above said liquid level, said segment being adapted to permit the isolated liquids to flow together into and along the stem toward the exit nozzle when a force is exerted on the liquids in the container.

Claim 7

In apparatus as set forth in claim 4, wherein the lengths of the stem and the tube are sufficient to position the open end of the tube adjacent to the bottom of the container when the stem is coupled with the exit nozzle.

Claim 8

The combination as set forth in claim 5, wherein said forcing means comprises a manually actuated pump device across the path of liquid flow toward the exit nozzle.

Claim 9

In combination: a container having a pair of immiscible liquids therein with the liquids being capable of becoming stratified relative to each other; an exit nozzle on the container adjacent to the upper portion thereof; means within the container for placing the nozzle in fluid communication with the interior of the container below the liquid level of the lower liquid when the liquids are stratified, said placing means including a tubular stem having an imperforate sleeve and a perforate segment within and extending throughout a major portion of the length of the sleeve, said sleeve having an upper, closed end above the perforations of said segment and a lower open end and being adapted for isolating portions of the liquids from the remainder of the liquids in the container, said closed end of said sleeve preventing fluid communication between the perforations of the segment and the region above said liquid level, said segment being adapted for permitting the isolated liquids in the sleeve to flow together toward the nozzle when an unbalanced force is exerted on the upper level of the upper liquid; valve means coupled with the placing means for controlling the flow of the liquids toward the nozzle; and means within the container for causing an unbalanced force to be exerted on the upper liquid.

Claim 10

In combination: a container having a pair of immiscible liquids therein with the liquids being capable of becoming stratified relative to each other; an exit nozzle on the container adjacent to the upper portion thereof; means within the container for placing the nozzle in fluid communication with the interior of the container below the liquid level of the lower liquid when the liquids are stratified, said placing means including a tubular stem having an imperforate sleeve and a perforate segment within and extending throughout a major portion of the length of the sleeve, said sleeve having an upper, closed end above the perforations of said segment and a lower open end and being adapted for isolating portions of the liquids from the remainder of the liquids in the container, said closed end of said sleeve preventing fluid communication between the perforations of the segment and the region above said liquid level, said segment being adapted for permitting the isolated liquids in the sleeve to flow together toward the nozzle when an unbalanced force is exerted on the upper level of the upper liquid; valve means coupled with the placing means for controlling the flow of the liquids toward the nozzle; and means within the container for causing an unbalanced force to be exerted on the upper liquid.

Claim 11

The combination as set forth in claim 7, wherein said forcing means comprises a pressurized gas in the container above the liquid level therein.