Granted Patent B2

US 9,480,995 · App. 12/966,958 · Granted Nov 1, 2016

Abstract

Claims (58)

1. A method of dispensing different concentrations of chemical concentrate from a concentrate container at different flow rates, the method comprising:

providing a stream of water and a chemical concentrate to be diluted in the stream of water between an inlet of a body member and an outlet of the body member to provide a fluid concentration dispensable from the outlet at one of a plurality of flow rates;

rotating at least a portion of an eductor to vary one of a volume of chemical concentrate and the flow rate;

sliding the eductor to vary the other of the volume of chemical concentrate and the flow rate; and

selectively dispensing the fluid concentration through the outlet.

2. The method of claim 1 , further comprising

moving the eductor to a first dispensing position; and

dispensing the fluid concentration from the outlet at a first flow rate.

3. The method of claim 2 , further comprising

moving the eductor to a second dispensing position; and

dispensing the fluid concentration from the outlet at a second flow rate different from the first flow rate.

4. The method of claim 3 , further comprising moving the eductor from a non-dispensing position to one of the first dispensing position and the second dispensing position.

5. The method of claim 3 , further comprising engaging an interlock with the eductor while the eductor is in one of the first dispensing position and second dispensing position to prevent rotation of eductor.

6. The method of claim 1 , wherein sliding the eductor includes actuating a trigger member.

7. The method of claim 1 , further comprising

rotating at least a portion of an eductor to select one of a plurality of volumes of chemical concentrate; and

sliding the eductor to vary the flow rate.

8. A method of dispensing different concentrations of chemical concentrate from a concentrate container at different flow rates, the method comprising:

providing a stream of water and a chemical concentrate to be diluted in the stream of water between an inlet of a body member and an outlet of the body member to provide a fluid concentration dispensable from the outlet at one of a plurality of flow rates;

rotating at least a portion of an eductor to select one of a plurality of volumes of chemical concentrate for dilution in the stream of water;

sliding the eductor to a first dispensing position to dispense the fluid concentration from the outlet at a first flow rate;

sliding the eductor to a second dispensing position to dispense the fluid concentration from the outlet at a second flow rate different from the first flow rate; and

selectively dispensing the fluid concentration through the outlet at one of the first flow rate and the second flow rate.

9. The method of claim 8 , further comprising

actuating a trigger member; and

sliding the eductor from a non-dispensing position to one of the first dispensing position and the second dispensing position.

10. The method of claim 8 , further comprising engaging an interlock with the eductor while the eductor is in one of the first dispensing position and second dispensing position to prevent further rotation of eductor.

11. The method of claim 8 , wherein sliding the eductor includes aligning a guide member with one of a plurality of notches in the eductor.

12. The method of claim 8 , further comprising

directing the stream of water through a converging fluid passage of the eductor;

directing the stream of water through a diverging fluid passage of the eductor to reduce the pressure of the stream of water; and

diluting the chemical concentrate with the stream of water in the diverging fluid passage.

13. A method of dispensing different concentrations of chemical concentrate from a concentrate container at different flow rates, the method comprising:

providing a stream of water and a chemical concentrate to be diluted in the stream of water between an inlet of a body member and an outlet of the body member to provide a fluid concentration dispensable from the outlet at one of a plurality of flow rates;

rotating at least a portion of an eductor to select one of a plurality of volumes of chemical concentrate for dilution in the stream of water;

sliding the eductor between a non-dispensing position, a first dispensing position corresponding to a first flow rate, and a second dispensing position corresponding to a second flow rate higher than the first flow rate to selectively dispense the fluid concentration from the outlet.

14. The method of claim 13 , further comprising

actuating a trigger member;

sliding the eductor from the non-dispensing position to one of the first dispensing position and the second dispensing position; and

selectively dispensing the fluid concentration through the outlet at one of the first flow rate and the second flow rate.

15. The method of claim 13 , further comprising

rotating the eductor to provide a first volume of chemical concentrate;

sliding the eductor to the first dispensing position;

directing the stream of water at the first flow rate through a fluid passage of the eductor;

diluting the first volume of chemical concentrate in the stream of water to form a first fluid concentration; and

dispensing the first fluid concentration from the outlet.

16. The method of claim 15 , further comprising

sliding the eductor to the second dispensing position;

directing the stream of water at the second flow rate through the fluid passage of the eductor;

diluting the first volume of chemical concentrate in the stream of water to form a second fluid concentration; and

dispensing the second fluid concentration from the outlet.

17. The method of claim 15 , further comprising

rotating the eductor to provide a second volume of chemical concentrate different from the first volume of chemical concentrate;

sliding the eductor to one of the non-dispensing position, the first dispensing position, and the second dispensing position; and

selectively diluting the second volume of chemical concentrate in the stream of water to form a second fluid concentration.

18. The method of claim 13 , wherein rotating the eductor includes selectively fluidly connecting one of a plurality of concentrate passages with the stream of water.

19. The method of claim 13 , further comprising engaging an interlock with the eductor while the eductor is in one of the first dispensing position and second dispensing position to prevent further rotation of eductor.

20. The method of claim 13 , wherein sliding the eductor includes aligning a guide member with one of a plurality of notches in the eductor.

Assignments (11)