US7343643B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective bag or bagless cleaning system
Assignee: Panasonic Corp of North America
•
Filing: 2004-03-17
•
Granted: 2008-03-18
•
Expires: 2024-03-17
Abstract
Abstract A vacuum cleaner includes a nozzle assembly and a canister assembly connected to the nozzle assembly. The nozzle assembly includes an inlet. A suction generator is carried on one of the nozzle assembly and canister assembly. A cyclonic separation chamber is carried on one of the nozzle assembly or the canister assembly. The cyclonic separation chamber includes an inlet and first and second outlets. A dirt collection vessel has a dirty air inlet in fluid communication with the first outlet of the cyclonic separation chamber and a discharge outlet in fluid communication with the suction generator.
Inventors
- 👤 Yasushi Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:25
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/16; A47L9/1683; Y; Y10; Y10S; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
141 words
A vacuum cleaner, comprising: a nozzle assembly having an inlet opening; a canister assembly connected to said nozzle assembly; a cyclonic separation chamber having an inlet, a first outlet and a second outlet, said cyclonic separation chamber being carried on one of said nozzle assembly and said canister assembly; a dirt collection vessel having a dirty air inlet and a discharge outlet, said dirt collection vessel being carried on one of said nozzle assembly and said canister assembly; and a suction generator carried on one of said nozzle assembly and said canister assembly; wherein said dirty air inlet is in fluid communication with said first outlet and said second outlet bypasses said dirt collection vessel and a discharge conduit is provided in fluid comminication with (a) said second outlet, (b) said discharge outlet and (c) an intake of said suction generator.
Claim 2
Dependent Claim
141 words
A vacuum cleaner, comprising: a nozzle assembly having an inlet opening; a canister assembly connected to said nozzle assembly; a cyclonic separation chamber having an inlet, a first outlet and a second outlet, said cyclonic separation chamber being carried on one of said nozzle assembly and said canister assembly; a dirt collection vessel having a dirty air inlet and a discharge outlet, said dirt collection vessel being carried on one of said nozzle assembly and said canister assembly; and a suction generator carried on one of said nozzle assembly and said canister assembly; wherein said dirty air inlet is in fluid communication with said first outlet and said second outlet bypasses said dirt collection vessel and a discharge conduit is provided in fluid comminication with (a) said second outlet, (b) said discharge outlet and (c) an intake of said suction generator.
Claim 3
Dependent Claim
21 words
The vacuum cleaner of claim 1 wherein an air filter is provided in said discharge conduit downstream from said second outlet.
Claim 4
Dependent Claim
17 words
the vacuum cleaner of claim 2 , wherein said air filter is upstream of said discharge outlet.
Claim 5
Dependent Claim
15 words
The vacuum cleaner of claim 1 , including a dirt filter over said second outlet.
Claim 6
Dependent Claim
52 words
The vacuum cleaner of claim 1 , wherein said cyclonic separation chamber is substantially cylindrical in shape and includes an end wall and a sidewall, said first outlet being located adjacent said sidewall and said second outlet being located adjacent an axial centerline of said cyclonic separation chamber on said end wall.
Claim 7
Dependent Claim
17 words
The vacuum cleaner of claim 5 , wherein said first outlet is also in said end wall.
Claim 8
Dependent Claim
19 words
The vacuum cleaner of claim 1 further including an agitator on said nozzle assembly held in said inlet opening.
Claim 9
Dependent Claim
139 words
A vacuum cleaner, comprising: a nozzle assembly having an inlet opening; a canister assembly connected to said nozzle assembly; a cyclonic separation chamber having an inlet, a first outlet and a second outlet, said cyclonic separation chamber being carried on one of said nozzle assembly and said canister assembly; a dirt collection vessel having a dirty air inlet in fluid communication with said first outlet and a discharge outlet, said dirt collection vessel being carried on one of said nozzle assembly and said canister assembly; a suction generator carried on one of said nozzle assembly and said canister assembly; a discharge conduit in fluid communication with (a) said second outlet, (b) said discharge outlet and (c) an intake of said suction generator; and a flow control valve in said discharge conduit between said second outlet and said discharge outlet.
Claim 10
Dependent Claim
139 words
A vacuum cleaner, comprising: a nozzle assembly having an inlet opening; a canister assembly connected to said nozzle assembly; a cyclonic separation chamber having an inlet, a first outlet and a second outlet, said cyclonic separation chamber being carried on one of said nozzle assembly and said canister assembly; a dirt collection vessel having a dirty air inlet in fluid communication with said first outlet and a discharge outlet, said dirt collection vessel being carried on one of said nozzle assembly and said canister assembly; a suction generator carried on one of said nozzle assembly and said canister assembly; a discharge conduit in fluid communication with (a) said second outlet, (b) said discharge outlet and (c) an intake of said suction generator; and a flow control valve in said discharge conduit between said second outlet and said discharge outlet.
Claim 11
Dependent Claim
46 words
The vacuum cleaner of claim 8 , wherein said How control valve is displaceable between a first position wherein said discharge outlet is closed off from said suction generator intake and a second position wherein said second outlet is closed off from said suction generator intake.
Claim 12
Dependent Claim
31 words
The vacuum cleaner of claim 9 , further including a dust bag held in said din collection vessel, said dust bag including an inlet receiving dirty air from said first outlet.
Claim 13
Dependent Claim
19 words
The vacuum cleaner of claim 10 , wherein said dust bag is made from a material porous to air.
Claim 14
Dependent Claim
28 words
The vacuum cleaner of claim 10 , wherein at least a portion of said dust bag and at least a portion of said dirt collection vessel are transparent.
Claim 15
Dependent Claim
85 words
A vacuum cleaner, comprising: a housing; a cyclonic separation chamber carried on said housing, said cyclonie separation chamber including a first inlet, a first outlet and a second outlet; a dirt cup having a second inlet in fluid communication with said first outlet and a third outlet; and a suction generator having a third inlet in fluid communication with said second outlet and said third outlet; and a valve for selectively controlling airflow between (a) said second and third outlets and (b) said third inlet.
Claim 16
Dependent Claim
85 words
A vacuum cleaner, comprising: a housing; a cyclonic separation chamber carried on said housing, said cyclonie separation chamber including a first inlet, a first outlet and a second outlet; a dirt cup having a second inlet in fluid communication with said first outlet and a third outlet; and a suction generator having a third inlet in fluid communication with said second outlet and said third outlet; and a valve for selectively controlling airflow between (a) said second and third outlets and (b) said third inlet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2011-03-18 | 2011-09-17 | 2012-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-03-18 | 2015-09-17 | 2016-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-03-18 | 2019-09-17 | 2020-03-18 | $7700.00 | Window Closed / Lapsed |