Laundry treating apparatus with solvent supply part for dry-cleaning solvent

Patent metadata

Field	Value
Publication number	US-9567700-B2
Application number	US-200913260123-A
Country	US
Kind code	B2
Filing date	Sep 11, 2009
Priority date	May 4, 2009
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A laundry treating apparatus includes a casing, a tub provided in the casing ( 10 ), and a rotatable drum ( 20 ) provided in the tub. The laundry treating apparatus also includes a water supply part provided in the casing to supply water to the rotatable drum and a solvent supply part supplying dry-cleaning solvent to the rotatable drum. The laundry treating apparatus further includes a condensation device that condenses a gaseous portion of the solvent into a liquid form and supplies the solvent in the liquid form to the solvent supply part.

First claim

The invention claimed is:

1. A laundry treating apparatus comprising:
a casing;
a tub provided in the casing;
a rotatable drum provided in the tub;
a water supply part provided in the casing to supply water to the rotatable drum;
a hot air supply device to supply hot air to the rotatable drum, the hot air supply device comprising a guide duct connected to a lower surface of the tub and an upper surface of the tub to circulate air in the tub, a heating device provided in the guide duct to generate the hot air supplied to the rotatable drum, and a fan provided in the guide duct to blow the generated hot air through the guide duct into an upper portion of the tub;
a condensation device provided in the guide duct under the tub to condense dry-cleaning solvent discharged through the guide duct from a lower portion of the tub from a gaseous portion of the dry-cleaning solvent into a liquid form of the dry-cleaning solvent, wherein cooled air separated from the dry-cleaning solvent by having passed the condensation device is moved toward the heating device along the guide duct and heated by the heating device prior to being supplied into the tub; and
a solvent supply part to supply the dry-cleaning solvent to the rotatable drum, wherein the solvent supply part comprises a solvent receiving part configured to store the dry-cleaning solvent and connected to a lower portion of the condensation device to store solvent condensate condensed by the condensation device, and a pump connected to the solvent receiving part to supply the dry-cleaning solvent to the rotatable drum via a solvent supply pipe.

2. The laundry treating apparatus as claimed in claim 1 , wherein the solvent supply part further comprises:
a spraying device connected to the pump to spray the dry-cleaning solvent into the rotatable drum.

3. The laundry treating apparatus as claimed in claim 1 , further comprising:
a closable valve provided between the condensation device and the solvent receiving part to control a flow of the solvent condensate.

4. The laundry treating apparatus as claimed in claim 1 , further comprising a filter part provided in the guide duct, wherein the filter part comprises a replaceable filter cartridge that is able to be inserted in the casing.

5. The laundry treating apparatus as claimed in claim 4 , further comprising:
a surfactant receiving part provided alongside the solvent receiving part to receive surfactant; and
a supply groove that is formed in front of the casing and that exposes a cover, wherein the cover is provided in the solvent receiving part and the surfactant receiving part to open the solvent receiving part and the surfactant receiving part, respectively.

6. The laundry treating apparatus as claimed in claim 5 , further comprising:
a cover member rotatably coupled to an outer portion of the casing to prevent the filter cartridge or the cover from being exposed outside.

7. The laundry treating apparatus as claimed in claim 1 , wherein:
the laundry treating apparatus comprises a washing machine and a drying machine;
a spraying device provided in the tub or the casing of the washing machine to spray the dry-cleaning solvent toward an opening of a rotatable drum of the washing machine; and
the openings of the rotatable drums of the washing machine and the drying machine defining entrances through which laundry enters the respective rotatable drums.

8. The laundry treating apparatus as claimed in claim 7 , wherein the solvent supply part is provided in the casing of the washing machine.

9. The laundry treating apparatus as claimed in claim 7 , wherein:
supporting compartments are provided under the casings of the washing machine and the drying machine, respectively, to heighten an installation height of the rotatable drums, the supporting compartments being partitioned off from the casings; and
the solvent receiving part is provided in the supporting compartments.

10. The laundry treating apparatus as claimed in claim 9 , wherein the solvent supply part is provided in the supporting compartment of the washing machine.

11. The laundry treating apparatus as claimed in claim 9 , wherein:
the solvent supply part comprises the solvent receiving part to receive the dry-cleaning solvent and a surfactant receiving part to receive surfactant; and
a front of the supporting compartment of the washing machine comprising:
a supply groove exposing predetermined portions of the solvent receiving part and the surfactant receiving part to enable the dry-cleaning solvent or the surfactant to be supplied; and
an attachment groove to enable a filter cartridge of a filter part to be replaceable.

12. The laundry treating apparatus as claimed in claim 11 , wherein a cover member covering the solvent receiving part and the filter part is rotatably coupled to the front of the supporting compartment.

13. The laundry treating apparatus as claimed in claim 1 , wherein the dry-cleaning solvent is silicone oil.

14. The laundry treating apparatus as claimed in claim 1 , further comprising:
a filter part that is provided in the guide duct and that is configured to filter foreign substances included in the gaseous portion of the dry-cleaning solvent, wherein the condensation device is provided under the filter part.

15. The laundry treating apparatus of claim 14 , wherein:
the condensation device is connected to the filter part and provided under the filter part such that air passes through the filter part prior to reaching the condensation device;
a front surface of the solvent receiving part is exposed at a front side of the casing for the solvent receiving part to receive the dry-cleaning solvent; and
a portion of the filter part is exposed at a front side of the casing and is slidingly detachable.

16. The laundry treating apparatus of claim 14 , wherein the condensation device is directly connected to the solvent receiving part through a valve such that the solvent condensate condensed by the condensation device falls directly to the valve through which it passes directly to the solvent receiving part.

Assignees

• Hong Sang Wook
• Chang Jae Won
• Park Sun Young
• Koo Bon Kwon
• Kang Ki Young
• Kim Ji Hee
• Lg Electronics Inc

Inventors

• Hong Sang Wook
• Chang Jae Won
• Park Sun Young
• Koo Bon Kwon
• Kang Ki Young
• Kim Ji Hee

Classifications

• D06F39/125

  Supporting arrangements for the casing, e.g. rollers or legs · CPC title

• D06F43/088

  Condensing arrangements · CPC title

• D06F39/022 Primary

  in a liquid state (D06F39/024 takes precedence) · CPC title

• D06F35/00

  Washing machines, apparatus, or methods not otherwise provided for · CPC title

• D06F43/085

  Filtering arrangements; Filter cleaning; Filter-aid powder dispensers · CPC title