Method and apparatus for cleaning laundry

Patent metadata

Field	Value
Publication number	US-11879202-B2
Application number	US-202017128947-A
Country	US
Kind code	B2
Filing date	Dec 21, 2020
Priority date	Sep 14, 2018
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

A laundry washing machine having: a casing, a washing tub located within the casing, a drum mounted within the washing tub and configured to rotate relative to the casing, a door attached to the casing and being openable to provide access to the drum, an additive loading and supply system configured to receive loose detergent, one or more valves configured to selectively provide water to the additive loading and supply system, a tub supply pipe fluidly connecting the additive loading and supply system to the drum, a receptacle configured to receive a unit dose package comprising a water soluble pouch containing a dose of cleaning product, and means for breaking the unit dose package outside the additive loading and supply system.

First claim

The invention claimed is:

1. A laundry washing machine comprising:
a casing;
a washing tub located within the casing;
a drum mounted within the washing tub and configured to rotate relative to the casing;
a door attached to the casing and configured to be openable to provide access to the drum;
an additive loading and supply system comprising a dispenser tray having at least one receptacle configured to receive one or more cleaning products therein;
one or more valves configured to selectively provide water to the additive loading and supply system; and
a tub supply pipe fluidly connecting the additive loading and supply system to the drum, the tub supply pipe having:
a first portion extending from the additive loading and supply system,
a retainer comprising one or more openings therethrough, the retainer being configured to hold an unbroken unit dose package vertically on top of and abutting the one or more openings, wherein the retainer is configured to allow water to pass vertically through the one or more openings, prevent an unbroken unit dose package from passing through the one or more openings, and allow only a broken unit dose package to pass through the one or more openings, and
a second portion extending from the retainer to the washing tub.

2. The laundry washing machine of claim 1 , wherein the retainer comprises a perforated plate.

3. The laundry washing machine of claim 1 , wherein the retainer comprises a wire mesh.

4. The laundry washing machine of claim 1 , wherein the retainer comprises one or more rods or ribs.

5. The laundry washing machine of claim 1 , further comprising one or more nozzles configured to direct a flow of water onto the unbroken unit dose package held on the retainer.

6. The laundry washing machine of claim 1 , further comprising one or more knives or pins located adjacent to the retainer and configured to break the unbroken unit dose package held on the retainer.

7. The laundry washing machine of claim 6 , wherein the one or more knives or pins are positioned on a movable mount, and configured to selectively move into contact with the unbroken unit dose package held on the retainer.

8. The laundry washing machine of claim 1 , wherein the retainer comprises one or more knives or spikes configured to break the unbroken unit dose package held on the retainer.

9. The laundry washing machine of claim 1 , wherein the retainer is selectively retractable to be flush with an interior wall of the tub supply pipe.

10. The laundry washing machine of claim 1 , wherein the tub supply pipe comprises an openable compartment located between the first portion and the second portion, and the retainer is located in the openable compartment.

11. The laundry washing machine of claim 10 , wherein the openable compartment comprises a drawer.

12. The laundry washing machine of claim 10 , further comprising one or more nozzles configured to direct a flow of water onto the unbroken unit dose package held on the retainer.

13. The laundry washing machine of claim 1 , further comprising one or more nozzles in the first portion and oriented to direct a flow of water onto the unbroken unit dose package while the unbroken unit dose package is moving through the first portion.

14. The laundry washing machine of claim 1 , wherein at least one of the receptacles is configured to receive the unbroken unit dose package, and the first portion is configured to allow the unbroken unit dose package to pass through the first portion from the dispenser tray to the retainer.

15. The laundry washing machine of claim 14 , wherein the one or more valves are fluidly connected to one or more nozzles configured to direct the water to the dispenser tray to flush the unbroken unit dose package into the first portion.

16. The laundry washing machine of claim 1 , wherein the retainer is configured to hold the unbroken unit dose package at least partially directly vertically on top of the one or more openings.

17. The laundry washing machine of claim 1 , wherein the retainer is located downstream of the first portion of the tub supply pipe, and upstream of the second portion of the tub supply pipe.

18. The laundry washing machine of claim 1 , wherein:
the dispenser tray comprises a plurality of receptacles configured to receive one or more cleaning products therein; and
the tub supply pipe is configured to convey respective contents of each of the plurality of receptacles from the dispenser tray to the washing tub.

19. The laundry washing machine of claim 18 , wherein the dispenser tray is slidably mounted to extend from and retract into the casing.

20. The laundry washing machine of claim 1 , wherein the tub supply pipe comprises a continuous vertical flow path extending from the additive loading and supply system, through the retainer, and to the washing tub.

21. A laundry washing machine comprising:
a casing;
a washing tub located within the casing;
a drum mounted within the washing tub and configured to rotate relative to the casing;
a door attached to the casing and configured to be openable to provide access to the drum;
an additive loading and supply system comprising a dispenser tray having at least one receptacle configured to receive one or more cleaning products therein;
one or more valves configured to selectively provide water to the additive loading and supply system; and
a tub supply pipe fluidly connecting the additive loading and supply system to the drum, the tub supply pipe having:
a first portion extending from the additive loading and supply system,
a retainer comprising a wire mesh having one or more openings therethrough, the retainer being configured to hold an unbroken unit dose package vertically on top of the one or more openings, wherein the retainer is configured to allow water to pass vertically through the one or more openings, prevent an unbroken unit dose package from passing through the one or more openings, and allow only a broken unit dose package to pass through the one or more openings, and
a second portion extending from the retainer to the washing tub.

22. A laundry washing machine comprising:
a casing;
a washing tub located within the casing;
a drum mounted within the washing tub and configured to rotate relative to the casing;
a door attached to the casing and configured to be openable to provide access to the drum;
an additive loading and supply system comprising a dispenser tray having at least one receptacle configured to receive one or more cleaning products therein;
one or more valves configured to selectively provide water to the additive loading and supply system;
a tub supply pipe fluidly connecting the additive loading and supply system to the drum, the tub supply pipe having:
a first portion extending from the additive loading and supply system,
a retainer comprising one or more openings therethrough, the retainer being configured to hold an unbroken unit dose package at least partially directly vertically on top of and abutting the one or more openings, wherein the retainer is configured to allow water to pass vertically through the one or more openings, prevent an unbroken unit dose package from passing through the one or more openings, and allow only a broken unit dose package to pass through the one or more openings, and
a second portion extending from the retainer to the washing tub; and

further comprising:
one or more nozzles configured to direct a flow of water onto the unbroken unit dose pa

Assignees

• Electrolux Appliances AB

Inventors

• Romito Helena
• White Allison
• Li Yihong
• Madalena Oscar

Classifications

• D06F39/028 Primary

  Arrangements for selectively supplying water to detergent compartments · CPC title

• D06F21/04

  within an enclosing receptacle · CPC title

• D06F33/00

  Control of operations performed in washing machines or washer-dryers  (D06F31/00 takes precedence; details of control systems therefor D06F34/00; control of operations performed in domestic laundry dryers D06F58/32) · CPC title

• D06F34/18

  Condition of the laundry, e.g. nature or weight · CPC title

• D06F37/04

  adapted for rotation or oscillation about a horizontal or inclined axis · CPC title