VACUUM CLEANER

• US 20080052872A1
• Filed: 11/02/2007
• Published: 03/06/2008
• Est. Priority Date: 05/12/2005
• Status: Active Grant

• Current Assignee: Raycop Korea Inc.
• Original Assignee: Bukang Sems Co., Ltd.
• Inventors: Cho, Young-Man
• Granted Patent: US 7,836,548 B2
• Time in Patent Office: Days
• US Class Current: 15/421
• CPC Class Codes: A47L 5/26 with driven dust-loosening tools
• CPC Class Codes: A47L 9/02 Nozzles suction nozzles for fluid transport B65G51/00
• CPC Class Codes: A47L 9/04 with driven brushes or agitators
• CPC Class Codes: A47L 9/122 flat
• CPC Class Codes: A61L 2/10 Ultraviolet radiation

Abstract

The sterilizing vacuum cleaner for bed clothes includes a housing including an ultraviolet (UV) irradiating space depressed into a bottom surface thereof, a suction port formed in the UV irradiating space, a discharge port formed in a side surface thereof, an air passage for connecting the suction port and the discharge port, and a sticking prevention passage depressed into the bottom extending to the side surface to prevent an object to be sterilized from adhering to the bottom surface. A first UV light emitter is installed in the housing to irradiate ultraviolet rays to the UV irradiating space of the housing.

Claims

1. A vacuum cleaner, comprising:

a housing comprising a bottom, a top and a side interconnecting the top and the bottom;

at least one bottom opening formed in the bottom of the housing;

a cavity formed in the housing in fluid communication with the at least one bottom opening;

a suction passage formed in the housing and in fluid communication with the cavity so as to create a negative pressure in the cavity during operation of the vacuum cleaner, wherein the at least one bottom opening is configured to suck outside dust into the cavity when a negative pressure is created in the cavity;

at least one auxiliary opening formed on at least one of the side and the top, wherein the at least one auxiliary opening is in fluid communication with the cavity; and

wherein the at least one auxiliary opening is configured to permit a substantial air flow therethrough to the cavity throughout operation of the vacuum cleaner.

2. The vacuum cleaner of claim 1, wherein the housing comprises a plurality of ribs arranged so as to provide the at least one auxiliary opening.

3. The vacuum cleaner of claim 2, wherein the plurality of ribs further provide at least one air flow channel to connect to the cavity.

4. The vacuum cleaner of claim 1, wherein the top and the side of the housing do not have a discrete boundary therebetween.

5. The vacuum cleaner of claim 1, wherein the suction passage comprises an inlet open to the cavity.

6. The vacuum cleaner of claim 1, wherein the substantial air flow from the at least one auxiliary opening to the cavity is to prevent the negative pressure created in the cavity from being excessive.

7. The vacuum cleaner of claim 1, further comprising an ultra violet light source configured to irradiate ultra violet light to a surface under the bottom.

8. The vacuum cleaner of claim 1, further comprising an ultra violet light source configured to irradiate ultra violet light to air being transferred through the suction passage.

9. The vacuum cleaner of claim 1, further comprising a hitting duster configured to beat a surface under the bottom.

10. The vacuum cleaner of claim 9, wherein the hitting duster comprises a head configured to make repeated movements to the surface and back to the housing through a hitting duster opening formed in the bottom of the housing.

11. The vacuum cleaner of claim 10, wherein the hitting duster further comprises an actuator connected to the head and configured to actuate the movements of the head.

12. The vacuum cleaner of claim 1, further comprises:

a first filter located at a first position within the suction passage and configured to filter air flowing through the suction passage; and

a second filter located at a second position within the suction passage downstream the first position and configured to further filter the air flowing through the suction passage past the first filter.

13. The vacuum cleaner of claim 1, further comprising a heater configured to heat air being transferred through the suction passage.

14. A method of vacuum cleaning, comprising:

placing the vacuum cleaner of claim 1 over a surface such that the bottom faces the surface to clean; and

operating the vacuum cleaner so as to create a negative pressure in the cavity, thereby sucking dust and particles into the cavity from the surface via the at least one bottom opening, and thereby creating a substantial air flow into the cavity via the at least one auxiliary opening.

15. The method of claim 14, wherein the surface comprises a mattress surface or a bedding surface made of a fabric.

16. The method of claim 14, wherein the vacuum cleaner further comprises an ultra violet source, wherein the method further comprise irradiating ultra violet light onto the surface during the operation.

17. The method of claim 14, wherein the vacuum cleaner further comprises a hitting duster, wherein the method further comprise hitting the surface during the operation.

18. The method of claim 14, wherein the substantial air flow from the at least one auxiliary opening to the cavity is to prevent the negative pressure created in the cavity from being excessive.

19. The method of claim 14, wherein the housing comprises a plurality of ribs arranged so as to provide the at least one auxiliary opening.

20. The method of claim 14, wherein the suction passage comprises an inlet open to the cavity.