Separately opening dust containers

• US 20070289267A1
• Filed: 12/01/2006
• Published: 12/20/2007
• Est. Priority Date: 06/16/2006
• Status: Active Grant

• Current Assignee: Techtronic Floor Care Technology Limited (Techtronic Industries Company Limited)
• Original Assignee: Royal Appliance Manufacturing Company (Techtronic Industries Company Limited)
• Inventors: Makarov, Sergey V., Paliobeis, Steven J., Loebig, Jeffrey C.
• Granted Patent: US 7,604,675 B2
• Time in Patent Office: Days
• US Class Current: 55/345
• CPC Class Codes: A47L 5/28 Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle A47L5/24 takes precedence
• CPC Class Codes: A47L 9/1625 for series flow
• CPC Class Codes: A47L 9/1641 for parallel flow
• CPC Class Codes: A47L 9/1683 Dust collecting chambers; Dust collecting receptacles
• CPC Class Codes: B04C 5/185 Dust collectors
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

The present invention relates to a home cleaning appliance including a housing including a nozzle having a main suction opening and a brush. An air stream suction source, mounted to the housing, includes a suction airstream inlet and a suction airstream outlet. The suction source selectively establishes and maintains a suction airstream from the nozzle main suction opening to the airstream outlet. A cyclone main body is mounted to the housing and is in communication with the nozzle main suction opening. The cyclone main body includes an upstream, first, cyclonic separator for separating dust from dust-laden air, and at least one downstream, second, cyclonic separator for separating remaining dust particles from the air. A dirt cup is connected to the cyclone main body. The dirt cup includes a first particle collector communicating with the first separator for collecting dust particles separated by the first separator, and a second particle collector communicating with the at least one second separator for collecting dust particles separated by the at least one second separator. The first particle collector and the second particle collector are configured to empty independently of each other.

Claims

1. A home cleaning appliance comprising:

a housing comprising a nozzle, including a main suction opening and a brush;

an air stream suction source, mounted to said housing and including a suction airstream inlet and a suction airstream outlet, said suction source selectively establishing and maintaining a suction airstream from said nozzle main suction opening to said airstream outlet;

a cyclone main body, mounted to said housing and in communication with said nozzle main suction opening, said cyclone main body including;

an upstream, first, cyclonic separator for separating dust from dust-laden air, and

at least one downstream, second, cyclonic separator for separating remaining dust particles from the air; and

a dirt cup connected to said cyclone main body, said dirt cup including;

a first particle collector communicating with said first separator for collecting dust particles separated by said first separator, and

a second particle collector communicating with said at least one second separator for collecting dust particles separated by said at least one second separator, wherein said first particle collector and said second particle collector are configured to empty independently of each other.

2. The appliance of claim 1, further comprising:

a first closure member operably secured to said cyclone main body for emptying of said first particle collector, and

a second closure member operably secured to said cyclone main body for emptying of said second particle collector.

3. The appliance of claim 2, wherein at least one of said first particle collector and said second particle collector can be selectively detached from said dirt cup.

4. The appliance of claim 1, wherein at least one of said first separator and said at least one second separator is selectively detachable from said housing.

5. The appliance of claim 4, wherein at least one of said first particle collector and said second particle collector is selectively detachable from said dirt cup.

6. The appliance of claim 1, wherein said cyclone main body is selectively detachable from said housing and wherein at least one of said first particle collector and said second particle collector is selectively detachable from said cyclone main body.

7. The appliance of claim 1, wherein said second particle collector includes an upper collection section in communication with a lower collection section, said upper collection section generally surrounding an upper portion of said first separator, a bottom portion of said upper collection section being tapered to promote sliding and transferring of remaining dust particles separated by said at least one second separator from said upper collection section into said lower collection section.

8. The appliance of claim 1, further comprising:

a perforated tube extending along a longitudinal axis of said first separator, and

an air manifold disposed above said cyclone main body, said perforated tube and said air manifold fluidly connecting said first separator to said at least one second separator.

9. The appliance of claim 8, wherein said perforated tube includes at least one internally mounted fin configured to eliminate cyclonic flow inside said perforated tube.

10. The appliance of claim 9, wherein said air manifold includes an inlet passage in communication with an outlet of said perforated tube, at least one of said inlet passage and said perforated tube includes a varying cross-sectional area for allowing air stream to be drawn into said perforated tube by way of the venturi effect.

11. The appliance of claim 8, wherein said at least one second separator includes a plurality of cyclonic separators and said manifold includes a plurality of separate air conduits for directing a volume of partially cleaned air generally tangentially into an inlet of each second stage separator.

12. The appliance of claim 1, wherein said first separator includes a dirty air inlet, a top wall and a sidewall having an outer surface and an inner surface, wherein said outer surface of said sidewall forms at least a part of an external surface of said housing.

13. The appliance of claim 1, wherein said at least one second separator includes a dust blocking member which is inclined at an acute angle relative to a longitudinal axis of said at least one second separator.

14. An upright vacuum cleaner comprising:

a nozzle base having a main suction opening;

a housing pivotally mounted on said nozzle base;

an airstream suction source mounted to one of said housing and said nozzle base for selectively establishing and maintaining a suction airstream from said nozzle main suction opening to an exhaust outlet of said suction source; and

a cyclone main body mounted to said housing, said cyclone main body comprising;

a first upstream cyclone part for separating coarse dust from dust-laden air, and

a second downstream cyclone part for separating remaining dust particles from the air;

a first particle collector mounted to said housing and communicating with said first cyclone part for collecting a first portion of dust particles, said first particle collector including a first closure member operably secured to said first particle collector for emptying said first particle collector; and

a separate second particle collector mounted to said housing and communicating with said second cyclone part for collecting a second portion of dust particles, said second particle collector including a second closure member operably secured to said second particle collector for independent emptying of said second particle collector.

15. The vacuum cleaner of claim 14, wherein at least one of said first particle collector and said second particle collector can be selectively detached from said housing.

16. The vacuum cleaner of claim 14, wherein at least one of said first cyclone part and said second cyclone part can be selectively detached from said cyclone main body.

17. The vacuum cleaner of claim 14, wherein said second cyclone part includes a plurality of cyclonic separators arranged in parallel.

18. A household vacuum cleaner, comprising:

a first housing section including a suction opening, and at least one wheel to allow said first housing section to roll over a subjacent surface;

a second housing section connected to said first housing section;

an airstream suction source mounted to one of said first and second housing sections;

a cyclone main body mounted to said second housing section and including;

an upstream separator stage including an upstream cyclone, and

a downstream separator stage including a plurality of downstream cyclones;

wherein said airstream suction source communicates with said first housing section suction opening via said cyclone main body so that an airstream flows from said suction opening through said upstream cyclone, said plurality of downstream cyclones and to an inlet of said airstream suction source;

a first particle collector communicating with said upstream cyclone; and

a second particle collector communicating with said plurality of downstream cyclones, wherein said second particle collector is configured to empty independently of said first particle collector.

19. The vacuum cleaner of claim 18 further comprising a closure member for selectively closing said second particle collector.

20. The vacuum cleaner of claim 19 further comprising a fastening member cooperating with said closure member of said second particle collector to selectively maintain said closure member in a closed position.

21. A home vacuum cleaner including:

a housing in fluid communication with a main suction opening and a brush roll rotatably mounted in said main suction opening;

an airstream suction source mounted to said housing for selectively establishing and maintaining a suction airstream flowing from said main suction opening to an exhaust outlet of said suction source; and

a dirt collector mounted to said housing, said dirt collector comprising;

a first upstream cyclone part for separating dust from dust-laden air,

a second downstream cyclone part for separating remaining dust particles from the air,

a first particle collector communicating with said first cyclone part for collecting dust particles,

a second particle collector communicating with said second cyclone part for collecting dust particles, said first particle separator generally surrounding said second particle collector, wherein said first particle collector and said second particle collector are configured to independently store and separately empty dirt and dust particles separated by the respective first and second cyclone parts.

22. The vacuum cleaner of claim 21, wherein said second cyclone part includes a plurality of cyclonic separators arranged in parallel.

23. The vacuum cleaner of claim 21, wherein said second particle collector is selectively removable from said dust collector.

24. The vacuum cleaner of claim 21, further including:

a first closure member operably secured to said first particle collector, and

a separate second closure member operably secured to said second particle collector.

25. The vacuum cleaner of claim 24, wherein said first closure member includes a top surface and said second closure member includes a bottom surface, said bottom surface being spaced from said top surface.

26. The vacuum cleaner of claim 24, wherein said first closure member has a diameter which is larger than a diameter of said second closure member.