Impeller having a sweeper

Patent metadata

Field	Value
Publication number	US-10100452-B2
Application number	US-201514885153-A
Country	US
Kind code	B2
Filing date	Oct 16, 2015
Priority date	Oct 16, 2015
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

An impeller with vanes extending above the upper surface of the impeller base plate along with a sweeper which extends beyond an outer periphery of the base plate. The sweeper pulls clothes from the basket that may have become stuck or lodged in a wet state back in toward the center of the impeller and in turn pushes them up by the impeller vane design.

First claim

The invention claimed is:

1. A laundry treating appliance for treating laundry according to an automatic cycle of operation, comprising:
a tub defining a liquid-holding reservoir;
a basket located within the reservoir and comprising a bottom wall from which extends a peripheral wall, and a corner that transitions between a substantially flat portion of the bottom wall and a vertical portion of the peripheral wall, which collectively define at least a portion of a treating chamber for receiving laundry to be treated;
an impeller located within the treating chamber and rotatable about a vertical rotational axis and comprising:
a base plate having an upper surface and an outer periphery; and
at least one vane assembly having a vane extending above the upper surface and a sweeper extending from the vane beyond the outer periphery and overlying at least a portion of the corner to pick up any laundry items that become lodged to the basket;

wherein the vane has a first body plane with a vertical orientation, and the sweeper is rigid and has a second body plane with a horizontal orientation.

2. The laundry treating appliance of claim 1 wherein the sweeper and vane form a unitary structure.

3. The laundry treating appliance of claim 2 wherein the sweeper and vane are integrally formed as the unitary structure.

4. The laundry treating appliance of claim 1 wherein the vane extends radially outward toward the periphery and terminates in a radially outwardly diverging portion, and the sweeper extends radially outwardly from the outwardly diverging portion.

5. The laundry treating appliance of claim 4 wherein the sweeper terminates in an outwardly extending rounded tip.

6. The laundry treating appliance of claim 5 wherein the rounded tip defines an arc.

7. The laundry treating appliance of claim 6 wherein the rounded tip is shaped to define an upturned lip in side profile.

8. The laundry treating appliance of claim 7 wherein the upturned lip follows a corresponding profile of the basket.

9. The laundry treating appliance of claim 8 wherein the corresponding profile of the basket is a curve.

10. The laundry treating appliance of claim 1 wherein the sweeper defines an upturned lip in side profile.

11. The laundry treating appliance of claim 10 wherein the upturned lip follows a corresponding profile of the basket.

12. The laundry treating appliance of claim 11 wherein the corresponding profile of the basket is a curve.

13. The laundry treating appliance of claim 1 wherein the at least one vane assembly comprises multiple, radially spaced vane assemblies.

14. A laundry treating appliance for treating laundry according to an automatic cycle of operation, comprising:
a tub defining a liquid-holding reservoir;
a basket located within the reservoir and comprising a bottom wall from which extends a peripheral wall, and a corner that transitions between a substantially flat portion of the bottom wall and a vertical portion of the peripheral wall, which collectively define at least a portion of a treating chamber for receiving laundry to be treated; and
an impeller located within the treating chamber and rotatable about a rotational axis and comprising:
a base plate having an upper surface and an outer periphery;
a vane extending above the upper surface; and
a rigid sweeper having a horizontal orientation and extending from the vane beyond the outer periphery and overlying at least a portion of the corner to pick up any laundry items that become lodged to the basket.

15. The laundry treating appliance of claim 14 wherein the sweeper defines an upturned lip in side profile.

16. The laundry treating appliance of claim 15 wherein the upturned lip follows a corresponding profile of the basket.

17. An impeller for a clothes washer having a basket comprising a bottom wall from which extends a peripheral wall, and a corner that transitions between a flat portion of the bottom wall and a vertical portion of the peripheral wall, the impeller comprising:
a base plate having an upper surface and an outer periphery; and
at least one vane assembly having a vane extending above the upper surface and a sweeper extending from the vane beyond the outer periphery and overlying at least a portion of the corner to pick up any laundry items that become lodged to the basket;
wherein the vane has a first body plane with a vertical orientation, and the sweeper is rigid and has a second body plane with a horizontal orientation.

18. The impeller of claim 17 wherein the sweeper defines an upturned lip in side profile.

19. The impeller of claim 17 wherein the sweeper is integrally formed with the vane.

Assignees

• Whirlpool Co

Inventors

• Burgess Brent
• Mueller Dale
• Vaive Nicholas

Classifications

• F04D29/2288

  for comminuting, mixing or separating · CPC title

• D06F17/10 Primary

  Impellers · CPC title

• D06F37/40

  for driving the receptacle and an agitator or impeller, e.g. alternatively {(D06F37/304, D06F37/308 take precedence)} · CPC title

• D06F37/14

  Ribs or rubbing means forming part of the receptacle · CPC title

• D06F23/04

  and rotating or oscillating about a vertical axis · CPC title