Laundry appliance

Patent metadata

Field	Value
Publication number	US-9534328-B2
Application number	US-201213476225-A
Country	US
Kind code	B2
Filing date	May 21, 2012
Priority date	Nov 8, 2005
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

A laundry machine configured to supply a first amount of water to the wash tub wherein a wash plate can be oscillated such that clothes items directly above and in contact with the impeller are frictionally dragged in a oscillatory manner with the wash chamber while continuing to oscillate said wash plate, an additional supply of water is added to said wash tub such that as cloth items lost frictional engagement with the wash plate, the cloth items continue to move along an inverse toroidal rollover path at higher water levels.

First claim

We claim:

1. A method of operating a laundry treating appliance having a wash basket for receiving laundry items rotatably supported within a wash tub, a wash plate disposed in the wash basket, and a motor drivingly connected with the wash basket and the wash plate, the method comprising:
supplying a first amount of liquid to the wash tub to a first liquid level in which the laundry items come into frictional contact with the wash plate;
oscillating the wash plate such that laundry items directly above and in contact with the wash plate are frictionally dragged in an oscillatory manner and the laundry items roll over within the wash basket along an inverse toroidal rollover path;
supplying a second amount of liquid to the wash tub to a second liquid level, greater than the first liquid level, in which the laundry items lose frictional contact with the wash plate; and
continuing to oscillate the wash plate during the supply of the second amount of liquid to maintain the rollover of the laundry items within the wash basket along an inverse toroidal rollover path as the laundry items lose frictional contact with the wash plate;
wherein the wash plate is oscillated according to a first drive profile during the supply of the first and second amounts of liquid, and a second drive profile subsequent to the first drive profile, and wherein the first drive profile comprises at least one of longer strokes, higher angular velocities or reduced ramp time than the second drive profile.

2. The method of claim 1 , further comprising intermittently oscillating the wash plate according to the first drive profile subsequent to the second drive profile.

3. The method of claim 1 , further comprising recirculating liquid during at least one of the first or second drive profiles.

4. The method of claim 1 wherein the first liquid level corresponds to a liquid to laundry items ratio of less than 10 liters/kg.

5. The method of claim 1 wherein the second liquid level corresponds to a liquid to laundry items ratio of greater than 15 liters/kg.

Assignees

• Duncan Anna Kathryn
• Hall Erin Louise
• Walker Geoffrey
• Duncan Gerald David
• Bernardino Flavio E
• Zeitler Mary Ellen
• Carr David Wayne
• Whirlpool Co

Inventors

• Duncan Anna Kathryn
• Hall Erin Louise
• Walker Geoffrey
• Duncan Gerald David
• Bernardino Flavio E
• Zeitler Mary Ellen
• Carr David Wayne

Classifications

• D06F39/083

  Liquid discharge or recirculation arrangements · CPC title

• D06F2202/085

  Textiles & Paper · mapped topic

• D06F2204/065

  Textiles & Paper · mapped topic

• D06F2202/10

  Textiles & Paper · mapped topic

• D06F23/04

  and rotating or oscillating about a vertical axis · CPC title