Laundry appliance

a technology for washing machines and laundry, applied in the field of laundry machines, can solve the problems of small load, machine likely to provide less effective wash action, and inability to reverse toroidal rollover motion,

Inactive Publication Date: 2011-01-25
WHIRLPOOL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]It is an object of the present invention to provide a laundry machine which goes some way toward overcoming the above disadvantages or which will at least provide the public with a useful choice.

Problems solved by technology

With too much water the inverse toroidal rollover motion is not achieved because the clothes lose frictional contact with the wash plate.
At higher water levels in which the machine cannot perform the inverse toroidal rollover pattern the inventors consider the machine is likely to provide a less effective wash action.
Where the laundry load does not rollover wash action of clothing against the wash plate is limited to a small fraction of the load and wash performance suffers.

Method used

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Examples

Experimental program
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Embodiment Construction

[0020]The present invention relates to improvements and adaptations on the wash system described in U.S. Pat. No. 6,212,722. The contents of that patent are incorporated herein by reference.

[0021]A laundry machine incorporating improvements and adaptations of the present application is illustrated in FIG. 1. The laundry machine includes a cabinet 100 with a lid 102 and a user console 104. A controller 106 is located within the body of the user console. The controller 106 includes a power supply and a programmed microcontroller. The power supply receives power from the mains supply and supplies power to the microcontroller, to a power supply bridge for the electric motor and to ancillary devices within the machine such as a pump and valves. Delivery of power to the motor 114 and the ancillary devices is at the control of microcontroller. The microcontroller receives inputs from a user interface on console 104.

[0022]A tub 120 is supported within the cabinet. The tub is preferably susp...

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PUM

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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.

Description

[0001]This application claims the benefit of Provisional application 60 / 734,728, filed on Nov. 8, 2005.FIELD OF THE INVENTION[0002]The present invention relates to laundry appliances and in particular to laundry washing machines for household use.BACKGROUND TO THE INVENTION[0003]U.S. Pat. No. 6,212,722 proposes an improved laundry washing machine for domestic use. This machine is of the top loading type having an outer bowl, a wash basket within the outer bowl and access to the wash basket through a top opening. A motor is provided to drive rotation of the wash basket within the outer bowl. A wash plate is provided in the lower portion of the wash basket to be rotated by the motor with the wash basket or independently of the wash basket. The patent proposes a combination of water level control, wash plate design, wash basket design and movement pattern for the wash plate which leads to an inverse toroidal movement of the laundry load during a wash phase. The sodden wash load is drag...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): D06F17/00
InventorDUNCAN, ANNA KATHRYNHALL, ERIN LOUISEWALKER, GEOFFREYDUNCAN, GERALD DAVIDBERNARDINO, FLAVIO E.ZEITLER, MARY ELLENCARR, DAVID WAYNE
OwnerWHIRLPOOL CORP