Vacuum cleaner equipped with dirt cup and separate filter drawer

• US 7,305,735 B2
• Filed: 10/10/2003
• Issued: 12/11/2007
• Est. Priority Date: 10/11/2002
• Status: Expired due to Fees

• Current Assignee: Panasonic Corporation Of North America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation Of North America (Panasonic Holdings Corporation)
• Inventors: Overvaag, Chad D.
• Primary Examiner(s): Redding, David
• Application Number:
  US10/683,188
• Publication Number:
  US 20040074042A1
• Time in Patent Office: 1,523 Days
• Field of Search: None
• US Class Current: 15/352
• CPC Class Codes: A47L 9/122 flat
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

A vacuum cleaner includes a housing, a nozzle inlet, a suction generator, a dirt cup and a filter assembly. The suction generator, dirt cup and filter assembly are all carried on the housing. The dirt cup includes an inlet and an outlet that provide fluid communication between the nozzle inlet, the dirt cup and the suction generator. The filter assembly is also provided in fluid communication with the nozzle inlet, the suction generator and the dirt cup. The filter assembly includes a filter holder displaceable between an open position and a closed position and a filter element that is held in the filter holder.

Claims

1. A vacuum cleaner, comprising:

a housing;

a nozzle inlet;

a suction generator carried on said housing;

a dirt cup carried on said housing and having an inlet and an outlet, said inlet and said outlet providing fluid communication between said nozzle inlet, said dirt cup and said suction generator;

said outlet is provided in a bottom wall of said dirt cup; and

a filter assembly positioned outside said dirt cup and in fluid communication with said nozzle inlet, said suction generator and said dirt cup, said filter assembly including a filter holder and a filter element held in said filter holder, wherein said filter assembly and dirt cup are removable as one assembly from the housing.

2. The vacuum cleaner of claim 1 wherein said dirt cup includes a sidewall.

3. The vacuum cleaner of claim 2, wherein said inlet is provided in said sidewall.

4. The vacuum cleaner of claim 2, wherein said dirt cup includes a dirt collection chamber that is substantially cylindrical in shape and said inlet is tangentially directed relative to said dirt collection chamber.

5. The vacuum cleaner of claim 2, wherein said dirt cup includes an open top and a lid closing said open top.

6. The vacuum cleaner of claim 5, wherein said filter assembly includes an internal filter chamber and an inlet in fluid communication with said filter chamber.

7. The vacuum cleaner of claim 6, wherein said filter holder includes a cavity receiving said filter element.

8. The vacuum cleaner of claim 7, wherein said filter holder includes a grating allowing air to flow through said filter element.

9. The vacuum cleaner of claim 7, wherein said filter holder is a drawer that slides in and out of said filter assembly.

10. The vacuum cleaner of claim 1, wherein a screen is provided in said dirt cup across said outlet.

11. The vacuum cleaner of claim 1, wherein said filter assembly includes an internal filter chamber and an inlet in fluid communication with said filter chamber.

12. The vacuum cleaner of claim 11, wherein said filter holder includes a cavity receiving said filter element.

13. The vacuum cleaner of claim 12, wherein said filter holder includes a grating allowing air to flow through said filter element.

14. The vacuum cleaner of claim 1, wherein said filter assembly is directly connected to said dirt cup and removable from said housing with said dirt cup.

15. The vacuum cleaner of claim 1, wherein said housing includes a nozzle section including said nozzle inlet and a canister section.

16. The vacuum cleaner of claim 15, wherein said dirt cup is received in said canister section.

17. The vacuum cleaner of claim 16, wherein said suction generator and said filter assembly are received in said canister section.

18. The vacuum cleaner of claim 17, wherein said nozzle section and said canister section are pivotally connected together.

19. The vacuum cleaner of claim 1, wherein the filter holder is displaceable between an open position and a closed position.

20. A vacuum cleaner, comprising:

a housing including a nozzle section having a nozzle inlet and a canister section;

a suction generator carried on said housing;

a dirt cup carried on said housing and having an inlet and an outlet, said inlet and said outlet providing fluid communication between said nozzle inlet, said dirt cup and said suction generator; and

a filter assembly positioned outside said dirt cup and in fluid communication with said nozzle inlet, said suction generator and said dirt cup, said filter assembly including a filter holder and a filter element held in said filter holder, wherein said filter assembly and dirt cup are removable as one assembly from the housing.

21. The vacuum cleaner of claim 20, wherein said dirt cup is received in said canister section.

22. The vacuum cleaner of claim 21, wherein said suction generator and said filter assembly are received in said canister section.

23. The vacuum cleaner of claim 22, wherein said nozzle section and said canister section are pivotally connected together.

24. The vacuum cleaner of claim 20, wherein the filter holder is displaceable between an open position and a closed position.