Fabric laundering using a select rinse fluid and wash fluids

Inactive Publication Date: 2005-05-05
WHIRLPOOL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015] It is an object of the invention to describe techniques and methods for minimizing the amount of select rinse

Problems solved by technology

There have been numerous attempts at making a non-aqueous laundering system; however, there have been many limitations associated with such attempts.
Traditional dry-cleaning solvents such as perchloroethylene are not feasible for in-home applications because they suffer from the disadvantage of having perceived environmental and health risks.
These solvents are environmentally friendly and have high vapor pressures leading to fast drying times, but these solvents don't currently provide the cleaning needed in such a system.
However, since these solvents are combustible and usually have low vapor pressures, it would be difficult to dry with traditional convection heating systems.
The solvents have low vapor pressures making evaporation slow thus increasing the drying time needed for such systems.
These safety codes limit the potential heat such solvents could see or the infrastructure needed to operate the machine.
In traditional washer/dryer

Method used

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  • Fabric laundering using a select rinse fluid and wash fluids
  • Fabric laundering using a select rinse fluid and wash fluids
  • Fabric laundering using a select rinse fluid and wash fluids

Examples

Experimental program
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Example

[0042] Modifications of the machine shown in U.S. patent application Ser. No. 10 / 699,262, “Non-Aqueous Washing Apparatus”, filed Oct. 31, 2003, has been used to test the efficacy of the washing and recovery operations depicted in the drawings and the specification should be incorporated herein for reference.

[0043]FIG. 1 depicts an embodiment of the wash unit 12, without the outer housing. Shown is a tub assembly 24, which includes a wash chamber 26 that is adapted to receive the contents to be washed, such as a fabric load (not shown). The tub assembly is connected to an outer structure via various suspension arms 25. The wash chamber 26 also includes a flexible boot 28 that circumferentially surrounds the opening 30 of the wash chamber 26. The boot 28 is adapted to provide a seal around the wash chamber 26 opening and also provide a conduit to the access door. The wash chamber 26 also includes a rear section 32. Inside the wash chamber 26 is a basket 34 that includes one or more p...

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PUM

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Abstract

Methods of laundering fabric with a wash fluid and rinse fluid and methods of recovery of the wash fluid and rinse fluid by selecting rinse wash fluids and rinse fluid with select properties that facilitate removal of the fluids from the fabric and separation of the fluids from each other while providing adequate laundering characteristics.

Description

CROSS-REFERENCE [0001] This application is a Continuation-in-part of application Ser. No. 10 / 699,159, filed Oct. 31, 2003, and related to patent application docket number US20040171, entitled “A Method for Laundering Fabric with a Non-Aqueous Working Fluid Using a Select Rings Fluid”; US20040172, entitled “A Fabric Laundering Apparatus Adapted for Using a Select Rinse Fluid”; and US20040173, “Method and Apparatus Adapted for Recovery and Reuse of Select Rinse Fluid in a Non-Aqueous Wash Apparatus”, filed concurrently herewith.TECHNICAL FIELD OF THE INVENTION [0002] The invention relates to a non-aqueous laundering machine, methods of using the machine, methods of rinsing, drying and recovery as well as apparatuses for the same. BACKGROUND OF THE INVENTION [0003] As defined by Perry's Chemical Engineers' Handbook, 7th edition, liquid extraction is a process for separating components in solution by their distribution between two immiscible phases. Such a process is also referred to as...

Claims

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Application Information

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IPC IPC(8): B08B3/14D06F43/00D06F43/08
CPCD06F43/00D06F43/085D06F43/08D06F43/007
Inventor LUCKMAN, JOEL A.SUNSHINE, RICHARD A.WRIGHT, TREMITCHELL L.LEITERT, ANDREW
Owner WHIRLPOOL CORP
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