Suction cleaners

• US 7,479,173 B2
• Filed: 08/31/2005
• Issued: 01/20/2009
• Est. Priority Date: 09/02/2004
• Status: Expired due to Fees

• Current Assignee: Vax Ltd. (Techtronic Industries Company Limited)
• Original Assignee: Vax Ltd. (Techtronic Industries Company Limited)
• Inventors: Ivarsson, Bengt Ivar Anders, Proud, Reuben, Burnham, Gavin
• Primary Examiner(s): Hopkins; Robert A
• Application Number:
  US11/217,584
• Publication Number:
  US 20060107630A1
• Time in Patent Office: 1,238 Days
• Field of Search: 553/46, 553/49, 554/29, 55D/IG.3, 554/32, 554/33, 554/10, 153/53
• US Class Current: 55/349
• CPC Class Codes: A47L 9/1608 Cyclonic chamber constructions
• CPC Class Codes: A47L 9/1641 for parallel flow
• CPC Class Codes: A47L 9/1683 Dust collecting chambers; Dust collecting receptacles
• CPC Class Codes: A47L 9/1691 Mounting or coupling means for cyclonic chamber or dust receptacles

Abstract

A cyclonic separator for a suction cleaner comprises a cyclone body of which at least part is afforded by components which fit together at interfaces extending axially of the cyclone body. The components may also afford air inlet and dust outlet passages, and at least partially define a dust-collecting chamber.

Claims

1. A cyclonic separator for a suction cleaner, comprising a first cyclone body formed from at least two components that fit together at multiple interfaces extending axially along a longitudinal axis of the first cyclone body, wherein at least part of the interfaces between the first cyclone body components lies in a plane which also contains longitudinal axis of the first cyclone body.

2. A separator according to claim 1 wherein at least one of an air inlet and a dust outlet is formed by the first cyclone body components.

3. A separator according to claim 1 wherein portions of the first cyclone body components are either semi-cylindrical or tapered.

4. A separator according to claim 1 wherein a dust collecting chamber is provided in association with at least one of the first cyclone body components.

5. A separator according to claim 1 wherein at least one of the first cyclone body components includes at least one passage extending transversely through the first cyclone body.

6. A separator according to claim 5 wherein the first cyclone body components define a tangential air inlet passage and a tangential dust-outlet passage.

7. A separator according to claim 6 wherein the inlet passage is at or adjacent a first end of the first cyclone body and the dust outlet passage is at or adjacent a second end of the first cyclone body.

8. A separator according to claim 6 wherein an outlet passage for air leaving the separator is provided by an outlet member extending axially of the separator from the first end of the first cyclone body.

9. A separator according to claim 8 wherein the outlet member extends from the first end of the first cyclone body having the inlet passage.

10. A separator according to claim 9 further comprising a second cyclone body formed from at least two components that fit together at interfaces that lie in a plane which contains an axis of the second cyclone body, wherein the second cyclone body is connected to the first cyclone body.

11. A separator according to claim 10 wherein the second cyclone body includes an air inlet passage at or adjacent a first end of the second cyclone body and a dust outlet passage at or adjacent a second end of the second cyclone body, and an outlet passage for air leaving the separator is provided by an outlet member extending axially of the separator from the first end of the second cyclone body.

12. A cyclonic separator for a suction cleaner, comprising a first cyclone body formed from at least two components that fit together at multiple interfaces extending axially along the first cyclone body;

and

a second cyclone body formed from at least two components that fit together at interfaces that lie in a plane which contains an axis of the second cyclone body, wherein the first cyclone body is connected to the second cyclone body, wherein the first and second cyclone bodies are arranged in an end-to-end relationship with one another;

wherein the first cyclone body components define a tangential air inlet passage and a tangential dust-outlet passage, wherein the inlet passage is at or adjacent a first end of the first cyclone body and the dust outlet passage is at or adjacent a second end of the first cyclone body, and wherein an outlet passage for air leaving the separator is provided by an outlet member extending axially of the separator from the first end of the first cyclone body having the inlet passage;

wherein the second cyclone body includes an air inlet passage at or adjacent a first end of the second cyclone body and a dust outlet passage at or adjacent a second end of the second cyclone body, and an outlet passage for air leaving the separator is provided by an outlet member extending axially of the separator from the first end of the second cyclone body.

13. A separator according to claim 12 wherein the axis of the first cyclone body and the axis of the second cyclone body are in alignment with one another.

14. A separator according to claim 12 wherein the first and second cyclone bodies are arranged with the air inlet of the first cyclone body and the air inlet of the second cyclone body adjacent to one another, and the dust outlet of the first cyclone body and the dust outlet of the second cyclone are located at the ends of the first and second cyclone bodies that are remote from one another.

15. A separator according to claim 14 further comprising a divided dust collecting chamber connected to both of the dust outlets.

16. A separator according to claim 14 wherein the air outlet member of the first cyclone body and the air outlet member of the second cyclone body comprise a combined air outlet member, the combined air outlet member having a portion extending into the first and the second cyclone bodies in opposite directions from the adjacent ends thereof.

17. A separator according to claim 16 wherein the combined air outlet member is a generally T-shaped pipe, with the oppositely-extending portions thereof connected to an outlet pipe lying between the adjacent ends of the first and second cyclone bodies.

18. A separator according to claim 17 wherein the outlet pipe extends transversely of the axes of the first and second cyclone bodies, for connection to a source of suction in a cleaner.

19. A separator according to claim 15 wherein the first and second cyclone bodies and the divided dust collection chamber are connected to form a unit removeably connected to a suction cleaner body.

20. A cyclonic separator for a suction cleaner, comprising a first cyclone body formed from at least two components that fit together at multiple interfaces extending axially along the first cyclone body, wherein the first cyclone body components define a tangential air inlet passage and a tangential dust outlet passage, wherein the inlet passage is at or adjacent a first end of the first cyclone body and the dust outlet passage is at or adjacent a second end of the first cyclone body, and wherein an outlet passage for air leaving the separator is provided by an outlet member extending axially of the separator from the first end of the first cyclone body having the inlet passage;

a second cyclone body formed from at least two components that fit together at interfaces that lie in a plane which contains an axis of the second cyclone body, wherein the first cyclone body is connected to the second cyclone body; and

an inlet member providing a branched passage leading to the air inlet passage of the first cyclone body and the air inlet passage of the second cyclone body.

21. A cyclonic separator for a suction cleaner, comprising a first cyclone body formed from at least two components that fit together at multiple interfaces extending along the longitudinal axis of the first cyclone body, wherein the first cyclone body comprises:

a tangential air inlet passage and a tangential dust outlet passage, wherein the inlet passage is at or adjacent a first end of the first cyclone body and the dust outlet passage is at or adjacent a second end of the first cyclone body; and

an outlet passage for air leaving the first cyclone body is provided by an outlet member extending along the longitudinal axis of the first cyclone body, the outlet member having a first and a second end, wherein the first end extends from the first end of the first cyclone body having the inlet passage and the second end is positioned within the first cyclone body at a distance closer to the second end than the first end; and

a removable plug attached to the second end of the first cyclone body for debris removal.

22. A separator according to claim 21, further comprising a second cyclone body formed from at least two components that fit together at multiple interfaces extending along the longitudinal axis of the second cyclone body, wherein the second cyclone body comprises:

a tangential air inlet passage and a tangential dust outlet passage, wherein the inlet passage is at or adjacent a first end of the second cyclone body and the dust outlet passage is at or adjacent a second end of the second cyclone body; and

an outlet passage for air leaving the second cyclone body is provided by an outlet member extending along the longitudinal axis of the second cyclone body, the outlet member having a first and a second end, wherein the first end extends from the first end of the second cyclone body having the inlet passage and the second end is positioned within the second cyclone body at a distance closer to the second end than the first end; and

a removable plug attached to the second end of the second cyclone body for debris removal.

23. A separator according to claim 22 wherein the first and second cyclone bodies are arranged in an end-to-end relationship with one another along their longitudinal axes.

24. A separator according to claim 23 wherein the first and second cyclone bodies are arranged with the air inlet of the first cyclone body and the air inlet of the second cyclone body adjacent to one another, and the dust outlet of the first cyclone body and the dust outlet of the second cyclone are located at the ends of the first and second cyclone bodies that are remote from one another.

25. A separator according to claim 24 further comprising a divided dust collecting chamber connected to the dust outlets of the first and second cyclone bodies.

26. A separator according to claim 24 wherein the air outlet member of the first cyclone body and the air outlet member of the second cyclone body comprise a combined air outlet member, the combined air outlet member having a portion extending into the first and the second cyclone bodies in opposite directions from the adjacent ends thereof.

27. A separator according to claim 26 wherein the combined air outlet member is a generally T-shaped pipe, with the oppositely-extending portions thereof connected to an outlet pipe lying between the adjacent ends of the first and second cyclone bodies.