Dispenser

Patent metadata

Field	Value
Publication number	US-10070759-B2
Application number	US-201514923884-A
Country	US
Kind code	B2
Filing date	Oct 27, 2015
Priority date	Oct 27, 2015
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

A dispenser includes a housing, a cartridge, and a pump assembly. The housing defines an internal volume. The cartridge is coupled with the housing. The pump assembly includes a tube that extends through the cartridge and into the internal volume of the housing. The tube includes a first inlet through which a first liquid is drawn into the tube from the internal volume when the pump assembly is actuated, and a second inlet through which a second liquid is drawn into the tube from the cartridge when the pump assembly is actuated.

First claim

What is claimed is:

1. A dispenser, comprising:
a housing defining an internal volume;
a cartridge coupled with the housing;
a pump assembly comprising a tube extending through the cartridge and into the internal volume of the housing, wherein the tube includes a first inlet through which a first liquid is drawn into the tube from the internal volume when the pump assembly is actuated, and a second inlet through which a second liquid is drawn into the tube from the cartridge when the pump assembly is actuated;
wherein the cartridge comprises a first portion having the second liquid disposed therein, and a second portion defining a bore through which the tube extends;
a connecting member that couples the first portion to the second portion, wherein the connecting member provides a flowpath from the first portion to an annulus formed between the tube and the second portion.

2. The dispenser of claim 1 , wherein the first portion is positioned radially-outward from the second portion.

3. The dispenser of claim 1 , wherein the tube, the first portion, and the second portion are concentric with one another.

4. The dispenser of claim 1 , wherein the connecting member provides a flowpath from the first portion to the second portion.

5. The dispenser of claim 1 , wherein the second inlet in the tube is axially-aligned and in fluid communication with the annulus.

6. The dispenser of any one of claims 1 , 2 - 3 , 4 and 5 , wherein the first liquid and the second liquid are combined inside the tube to form a mixture.

7. The dispenser of claim 6 , wherein the mixture is ejected from the pump assembly as a foam hand soap.

8. A method for using a dispenser, comprising:
pouring a first liquid into a housing;
coupling a cartridge with the housing, wherein a second liquid is disposed in the cartridge, wherein the cartridge comprises a first portion having the second liquid disposed therein, and a second portion defining an axial bore through which a tube of a pump assembly extends through the cartridge and into an internal volume of the housing, the cartridge further comprising a connecting member that couples the first portion to the second portion, wherein the connecting member provides a flowpath from the first portion to an annulus formed between the tube and the second portion;
inserting the tube of the pump assembly through the axial bore;
coupling a lid of the pump assembly to the housing; and
actuating the pump assembly, thereby causing the first liquid to be drawn into the tube from the internal volume of the housing through a first inlet in the tube and the second liquid to be drawn into the tube from the cartridge through a second inlet in the tube.

9. The method of claim 8 , wherein pouring the first liquid into the housing comprises pouring the first liquid through an axial opening in the cartridge after the cartridge is placed at least partially into the housing, wherein the axial opening is positioned radially-between the second portion of the cartridge and the first portion of the cartridge.

10. The method of claim 8 , further comprising:
decoupling the lid of the pump assembly from the housing;
separating the pump assembly from the housing; and
pouring additional first liquid into the housing through an axial opening in the cartridge.

11. The method of any one of claims 8 - 9 , further comprising:
decoupling the lid of the pump assembly from the housing;
separating the pump assembly from the housing;
removing the cartridge from the housing; and
placing a new cartridge at least partially into the housing.

Assignees

• Colgate Palmolive Co

Inventors

• Toh Kiat-Cheong
• Knorr Joseph

Classifications

• B05B11/1081

  Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping · CPC title

• A47K5/14 Primary

  Foam or lather making devices · CPC title

• A47K5/1205

  Dispensing from the top of the dispenser with a vertical piston · CPC title

• B05B11/0097

  Means for filling or refilling the sprayer (through additional openings in the container B05B11/0056) · CPC title

• B05B11/0054

  Cartridges, i.e. containers specially designed for easy attachment to or easy removal from the rest of the sprayer (attachment arrangements between pump and container B05B11/1043) · CPC title