Vacuum cleaner and intake port unit thereof

• US 8,056,181 B2
• Filed: 12/12/2006
• Issued: 11/15/2011
• Est. Priority Date: 12/13/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Choi, Jay Ho, Park, Sung Il, Kim, Hyoung Jun, Chung, Choon Myun
• Primary Examiner(s): GRANT, ALVIN J
• Application Number:
  US11/609,516
• Publication Number:
  US 20070130720A1
• Time in Patent Office: 1,799 Days
• Field of Search: 153/20, 153/401, 153/402, 153/21, 15/501, 15/98
• US Class Current: 15/320
• CPC Class Codes: A47L 11/34 Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
• CPC Class Codes: A47L 11/4086 Arrangements for steam generation
• CPC Class Codes: A47L 11/4094 Accessories to be used in combination with conventional vacuum-cleaning devices
• CPC Class Codes: A47L 5/36 Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
• CPC Class Codes: A47L 9/02 Nozzles suction nozzles for fluid transport B65G51/00
• CPC Class Codes: A47L 9/0686 Nozzles with cleaning cloths, e.g. using disposal fabrics for covering the nozzle
• CPC Class Codes: F22B 1/284 with water in reservoirs

Abstract

A vacuum cleaner and an intake port unit thereof are disclosed, by which a steam cleaning can be conducted together with a vacuum cleaning. The intake port unit includes a housing. A vacuum intake passage is provided within the housing for passage of air sucked in from the exterior of the housing, and a steam generator is provided within the housing to generate steam. A steam discharge passage is provided within the housing for passage of steam discharged to the exterior of the housing. The steam discharge passage is partitioned from the vacuum intake passage.

Claims

1. An intake port unit for a vacuum cleaner, comprising:

a housing;

a vacuum intake passage provided within the housing for passage of air sucked in from the exterior of the housing;

a steam generator provided within the housing to generate steam; and

a steam discharge passage provided within the housing for passage of steam discharged to the exterior of the housing, wherein the steam discharge passage is partitioned from the vacuum intake passage;

wherein the steam generator comprises;

a water tank provided within the housing; and

a boiler that heats water supplied from the water tank, the boiler comprising;

a boiler case storing the water supplied from the water tank;

a heater provided in the boiler case to heat the water in the boiler case to generate steam; and

a steam discharge pipe having an upper end positioned within the boiler case, spaced from an upper wall of the boiler case, and a lower end communicating with the steam discharge passage.

2. The intake port unit of claim 1, further comprising:

a vacuum intake port provided on one side of a bottom of the housing to suck in exterior air, the vacuum intake port being connected to the vacuum intake passage; and

a steam discharge port provided on another side of the bottom of the housing spaced from the vacuum intake port to discharge steam, the steam discharge port being connected to the steam discharge passage.

3. The intake port unit of claim 2, wherein a floorcloth is detachably attached to the bottom of the housing over the steam discharge port.

4. The intake port unit of claim 1, wherein the vacuum intake passage is configured to be connected to a vacuum source outside of the housing.

5. The intake port unit of claim 1, wherein a floorcloth is detachably attached to a bottom of the housing.

6. The intake port unit of claim 1, wherein the water tank is configured to be removed from and inserted into the housing.

7. The intake port unit of claim 6, the steam generator further comprising a valve for connecting the water tank and the boiler, wherein the valve is configured to be opened when the water tank is inserted into the housing, and closed when the water tank is removed from the housing.

8. The intake port unit of claim 1, the boiler further comprising a shield positioned between the upper end of the steam discharge pipe and the upper wall of the boiler case to prevent condensed water from entering the steam discharge pipe.

9. The intake port unit of claim 8, wherein the shield has a conical shape with a downwardly increasing circumference to prevent condensed water on the upper wall of the boiler case, and condensed water on a bottom of the shield, from entering the steam discharge pipe.

10. A vacuum cleaner comprising:

a vacuum unit containing a suction source;

a pipe extending from the vacuum unit to provide a passage for air intake; and

an intake port unit connected to an end portion of the pipe to suck in exterior air from a surface to be cleaned, the intake port unit containing a steam generator that generates steam, and a steam discharge passage through which steam is discharged toward the surface to be cleaned,

wherein the intake port unit comprising;

a housing containing the steam generator and the steam discharge passage; and

a vacuum intake passage provided within the housing for passage of air sucked in from the exterior of the housing,

wherein the steam discharge passage is partitioned from the vacuum intake passage,

the steam generator comprises;

a water tank provided within the housing and

a boiler that heats water supplied from the water tank, the boiler comprising;

a boiler case storing the water supplied from the water tank;

a heater provided in the boiler case to heat the water in the boiler case to generate steam; and

a steam discharge pipe having an upper end positioned within the boiler case, spaced from an upper wall of the boiler case, and a lower end communicating with the steam discharge passage.

11. The vacuum cleaner of claim 10, further comprising a control unit provided on the pipe for selectively activating the suction source and the steam generator.

12. The vacuum cleaner of claim 10, wherein the intake port unit further comprises:

a vacuum intake port provided on one side of a bottom of the housing to suck in exterior air, the vacuum intake port being connected to the vacuum intake passage; and

a steam discharge port provided on another side of the bottom of the housing spaced from the vacuum intake port to discharge steam, the steam discharge port being connected to the steam discharge passage.

13. The vacuum cleaner of claim 10, wherein a floorcloth is detachably attached to a bottom of the housing.

14. The vacuum cleaner of claim 10, wherein the water tank is configured to be removed from and inserted into the housing.

15. The vacuum cleaner of claim 14, the steam generator further comprising a valve for connecting the water tank and the boiler, wherein the valve is configured to be opened when the water tank is inserted into the housing, and closed when the water tank is removed from the housing.

16. The vacuum cleaner of claim 10, the boiler further comprising a shield positioned between the upper end of the steam discharge pipe and the upper wall of the boiler case to prevent condensed water from entering the steam discharge pipe.