Multiple function dispenser
View Patent ↗A dispenser for mixing and dispensing a liquid chemical concentrate with a dilutent from a container. The dispenser includes two slideable eductors one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjustment of concentration of the chemical concentrate. The dispenser has a high degree of accuracy of the amount of dilution of the chemical concentrate as well as positive positioning of the high and low flow rate.
1. A dispenser for dispensing different concentrations of chemical concentrate into a stream of water from a concentrate container at different flow rates comprising:
a body member having a through bore with an inlet end adapted to be connected to a source of pressurized water at one end and an outlet at the opposite end connected to the inlet end; and
an eductor at least partially disposed in the bore, the eductor being in fluid communication with a source of chemical concentrate and including a plurality of spaced apertures through which chemical concentrate flows, the eductor movable to different positions relative to the body member to provide control of both different concentrations of chemical concentrate and different flow rates of water and chemical concentrate to the outlet.
2. The dispenser of claim 1 wherein the eductor is composed of first and second parts, only one of which is rotatable.
3. The dispenser of claim 2 wherein the first part of the eductor is rotatable and extends from the body member.
4. The dispenser of claim 3 wherein the second part is nonrotatable, and the first and second parts of the eductor provide a fluid passage.
5. The dispenser of claim 4 further including a dilution adjustment member disposed on the first part, wherein the plurality of spaced apertures are circumferentially spaced on the dilution adjustment member for fluid communication with the fluid passage.
6. The dispenser of claim 5 further including a product passage and a vent passage in the body member and a seal constructed and arranged to seal both the product passage and the vent passage.
7. The dispenser of claim 5 wherein the dilution adjustment member includes a multiplicity of different sized passages.
8. The dispenser of claim 5 wherein the dilution adjustment member includes non-linear passages selectively connecting the plurality of apertures with the fluid passage.
9. The dispenser of claim 8 wherein the eductor includes first and second parts and a gap between the first and second parts, and wherein the passages are in communication with the gap.
10. The dispenser of claim 1 further including a valve assembly disposed upstream of the eductor, the valve assembly including a valve member having a plurality of passages to direct a flow of water to the eductor.
11. The dispenser of claim 10 wherein the valve member includes a first groove and a second groove, and wherein a flow control element is disposed in the first groove.
12. The dispenser of claim 11 wherein a seal is disposed in the second groove.
13. A dispenser for dispensing different concentrations of chemical concentrate into a stream of water from a concentrate container at different flow rates comprising:
a body member having a through bore with an inlet end adapted to be connected to a source of pressurized water at one end and an outlet at the opposite end connected to the inlet end;
an eductor at least partially disposed within the bore and defining a fluid passage, the eductor movable to different positions relative to the body member to provide control of different flow rates of water and chemical concentrate from the fluid passage to the outlet;
a product passage connected between the container and the body member to selectively provide chemical concentrate to the fluid passage;
a vent passage connected between the container and the bore; and
a seal constructed and arranged to selectively seal both the product passage and the vent passage when the eductor is moved.
14. The dispenser of claim 13 wherein the seal is movable with the eductor to expose the product passage and the vent passage when the eductor is moved from a first, non-dispensing position to a second, dispensing position.
15. The dispenser of claim 13 , further including a dilution adjustment member disposed on the eductor, and wherein the seal is disposed between the dilution adjustment member and the body member within the bore.