DIRT CUP ASSEMBLY FOR VACUUM CLEANER

• US 20020088209A1
• Filed: 01/11/2001
• Published: 07/11/2002
• Est. Priority Date: 01/11/2001
• Status: Active Grant

• Current Assignee: Royal Appliance Manufacturing Company (Techtronic Industries Company Limited)
• Original Assignee: Royal Appliance Manufacturing Company (Techtronic Industries Company Limited)
• Inventors: Kalman, Jeffrey M., Stephens, Paul D., Thur, Charles J.
• Granted Patent: US 6,436,160 B1
• Time in Patent Office: Days
• US Class Current: 55/337
• CPC Class Codes: A47L 9/165 Construction of inlets
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: B01D 50/20 Combinations of devices covered by groups B01D45/00 and B01D46/00
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

A dirt cup assembly for a vacuum cleaner includes a dirt cup having a dust collection chamber, a first inlet duct, and a second inlet duct spaced from the first inlet duct. A dirt cup lid can be removably secured to the dirt cup, or can be associated with the vacuum cleaner upper assembly. The dirt cup lid includes a center portion extending over the dust collection chamber, a first wall portion extending over the first inlet duct, and a second wall portion extending over the second inlet duct. A filter assembly is removably positioned within the dust collection chamber.

Claims

1. A dirt cup for a vacuum cleaner, the dirt cup comprising:

an outer wall;

a first inner wall that cooperates with a first portion of the outer wall to define a first inlet duct;

a second inner wall that cooperates with a second portion of the outer wall to define a second inlet duct;

the first and second inner walls cooperating with a third portion of the outer wall to define a dust collection chamber; and

a bottom wall joined to lower end edges of the outer wall, first inner wall, and second inner wall.

2. The dirt cup of claim 1, further including a filter support projecting from the bottom wall within the dust collection chamber.

3. The dirt cup of claim 2, wherein the filter support includes an outlet passage through the bottom wall.

4. The dirt cup of claim 1, wherein the first inlet duct includes an inlet aperture adapted for fluid communication with a brushroll chamber of an associated vacuum cleaner.

5. The dirt cup of claim 1, wherein the second inlet duct includes an inlet aperture adapted for fluid communication with an above-the-floor cleaning tool.

6. The dirt cup of claim 1, wherein the first inlet duct is spaced from the second inlet duct by more than about 90°

.

7. A dirt cup assembly for a vacuum cleaner, the dirt cup assembly comprising:

a dirt cup having a dust collection chamber, a first inlet duct, and a second inlet duct spaced from the first inlet duct; and

a filter assembly removably positioned within the dust collection chamber.

8. The dirt cup assembly of claim 7, wherein the dirt cup further includes a filter support projecting from a lower wall of the dust collection chamber for supporting the filter assembly.

9. The dirt cup assembly of claim 8, wherein the filter support includes an outlet passage through the lower wall.

10. The dirt cup assembly of claim 7, wherein the filter assembly has a tubular form and cooperates with the dirt cup to define an annular cyclonic airflow passage within the dust collection chamber.

11. The dirt cup assembly of claim 7, wherein the first inlet duct includes an inlet aperture adapted for fluid communication with a brushroll chamber of the vacuum cleaner.

12. The dirt cup assembly of claim 11, wherein the second inlet duct includes an inlet aperture adapted for fluid communication with an above-the-floor cleaning tool.

13. The dirt cup assembly of claim 7, wherein the first inlet duct is spaced from the second inlet duct by more than about 90°

.

14. The dirt cup assembly of claim 7, further including a lid removably secured to the dirt cup, the lid having a center portion extending over the dust collection chamber, a first wall portion extending over the first inlet duct, and a second wall portion extending over the second inlet duct.

15. The dirt cup assembly of claim 14, wherein the lid further includes a first diverter wall positioned to divert an airflow from the first inlet duct to a tangential path within the dust collection chamber, and a second diverter wall positioned to divert an airflow from the second inlet duct to another tangential path within the dust collection chamber.

17. The vacuum cleaner of claim 16, wherein the cup further includes a filter support projecting from a bottom wall of the dirt collection chamber for supporting the filter assembly.

18. The vacuum cleaner of claim 17, wherein the filter support includes an outlet passage through the bottom wall for communicating with a third inlet duct of a motor and filter housing positioned below the cup.

19. The vacuum cleaner of claim 16, wherein the filter assembly has a tubular form and cooperates with the cup to define an annular cyclonic airflow passage within the dirt collection chamber.

20. The vacuum cleaner of claim 16, wherein the first inlet duct includes an inlet aperture adapted for fluid communication with a brushroll chamber associated with the nozzle base.

21. The vacuum cleaner of claim 20, wherein the second inlet duct includes an inlet aperture adapted for fluid communication with an above-the-floor cleaning tool.

22. The vacuum cleaner of claim 16, wherein the first inlet duct is positioned forward of the upper assembly and the second inlet duct is positioned rearward of the upper assembly.

23. The vacuum cleaner of claim 16, wherein the dirt cup assembly further includes a lid removably secured to the cup, the lid having a center portion extending over the dirt collection chamber, a first wall portion extending over the first inlet duct, and a second wall portion extending over the second inlet duct.

24. The vacuum cleaner of claim 23, wherein the lid further includes a first diverter wall positioned to divert an airflow from the first inlet duct to a tangential path within the dirt collection chamber, and a second diverter wall positioned to divert an airflow from the second inlet duct to another tangential path within the dirt collection chamber.

26. The vacuum cleaner of claim 25, wherein the first inlet duct is positioned along a longitudinal axis of the vacuum cleaner.

27. The vacuum cleaner of claim 25, wherein the first inlet duct communicates with a brushroll chamber defined in the nozzle base, and the second inlet duct communicates with an above-the-floor cleaning hose.

16. A vacuum cleaner comprising:

a nozzle base;

an upper assembly pivotally secured to the nozzle base; and

a dirt cup assembly removably secured to at least one of the nozzle base and the upper assembly, the dirt cup assembly including a cup having a dirt collection chamber, a first inlet duct, a second inlet duct spaced from the first inlet duct, and a filter assembly removably positioned within the dirt collection chamber.

25. A vacuum cleaner comprising:

a nozzle base;

an upper assembly pivotally secured to the nozzle base; and

a dirt cup removably secured to at least one of the nozzle base and the upper assembly, the dirt cup including a first inlet duct positioned forward of the upper assembly, and a second inlet duct positioned rearward of the upper assembly.