# US 2008/0184521 A1 · Canister vacuum cleaner equipped with air cushion caster wheel assembly

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- Number: US 2008/0184521 A1
- Document ID: US20080184521A1
- Status: Published application
- Kind: A1
- Application number: 12/017,484
- Filed: 2008-01-22
- Published: 2008-08-07
- Earliest claimed: 2007-02-02
- Inventors: Eric J. Streciwilk
- Web page: https://patentgrep.com/patent/US20080184521A1

## CPC

- A47L 9/009: {Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles}
- A47L 5/362: {of the horizontal type, e.g. canister or sledge type}
- A47L 7/06: for supporting the suction cleaner on the exhaust air
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)

## Abstract

A canister vacuum cleaner includes a housing carrying a suction generator and a dirt collection vessel. The housing is supported on a caster wheel assembly including a wheel riding on a cushion of air.

## Claims

### Claim at position 1

) A canister vacuum cleaner, comprising:
a housing;
a suction generator carried on said housing;
a dirt collection vessel carried on said housing; and
a support assembly carried on said housing, said support assembly including a wheel riding on a cushion of air.

### Claim at position 2 (depends on 1)

) The vacuum cleaner of claim 1, wherein said support assembly further includes a base member including a cavity for receiving said wheel.

### Claim at position 3 (depends on 2)

) The vacuum cleaner of claim 2, wherein said support assembly further includes a keeper for capturing said wheel in said cavity of said base member.

### Claim at position 4 (depends on 3)

) The vacuum cleaner of claim 3, wherein said keeper includes an aperture and at least a portion of said wheel projects from said aperture.

### Claim at position 5 (depends on 4)

) The vacuum cleaner of claim 4, further including a seal carried on one of said base member and said keeper and engaging said wheel.

### Claim at position 6 (depends on 5)

) The vacuum cleaner of claim 5, wherein said base member includes a series of air ports communicating with said cavity.

### Claim at position 7 (depends on 6)

) The vacuum cleaner of claim 6, wherein said vacuum cleaner includes a conduit for directing at least a portion of air being exhausted from said suction generator through said air ports.

### Claim at position 8 (depends on 1)

) The vacuum cleaner of claim 1, wherein said vacuum cleaner further includes a hose and a wand.

### Claim at position 9 (depends on 8)

) The vacuum cleaner of claim 8, wherein said vacuum cleaner further includes a cleaning attachment.

### Claim at position 10 (depends on 9)

) The vacuum cleaner of claim 9, wherein said cleaning attachment is a power head including a rotary agitator and an agitator drive motor.

### Claim at position 11 (depends on 1)

) The vacuum cleaner of claim 1, wherein said vacuum cleaner includes a retractable power cord.

### Claim at position 12 (depends on 1)

) The vacuum cleaner of claim 1, wherein said dirt collection vessel is a filter bag.

### Claim at position 13 (depends on 1)

) The vacuum cleaner of claim 1, wherein said dirt collection vessel is a dirt cup.

### Claim at position 14 (depends on 13)

) The vacuum cleaner of claim 13, wherein said dirt cup includes a cylindrical side wall, a tangentially directed inlet and an outlet.

### Claim at position 15 (depends on 1)

) The vacuum cleaner of claim 1, wherein said vacuum cleaner includes a pair of wheels secured to said housing.

### Claim at position 16 (depends on 1)

) The vacuum cleaner of claim 1, wherein said wheel is spherical in shape.

### Claim at position 17 (depends on 1)

) The vacuum cleaner of claim 1, wherein said wheel is cylindrical in shape.

### Claim at position 18

) A castor wheel assembly, comprising:
a wheel;
a base member including a cavity for receiving said wheel; and
a keeper for capturing said wheel in said cavity, said keeper including an aperture and at least a portion of said wheel projecting from said aperture.

### Claim at position 19 (depends on 18)

) The assembly of claim 18 further including a seal carried on one of said base member and said keeper and engaging said wheel.

### Claim at position 20 (depends on 19)

) The assembly of claim 19 wherein said base member includes a series of air ports communicating with said cavity.

### Claim at position 21 (depends on 18)

) The assembly of claim 18, wherein said wheel is spherical in shape.

### Claim at position 22 (depends on 18)

) The assembly of claim 18, wherein said wheel is cylindrical in shape.