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US5799363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Upright vacuum cleaner
Assignee: Panasonic Holdings Corp
•
Filing: 1997-01-09
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Granted: 1998-09-01
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Expires: 2017-01-09
Abstract
Abstract An upright vacuum cleaner has a float unit (29A) for lifting the upright vacuum cleaner during cleaning by spouting discharge air to a floor to be cleaned. The float unit (29A) has a floor-opposing face having a discharge-air outlet port (31) for spouting the discharge air of a motor fan (21).
Inventors
- 👤 Takayuki Inoue
- 👤 Masami Fukumoto
- 👤 Izumi Yamaura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:26
CPC Classifications
A; A47; A47L; A47L9/00; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/30; A47L7/00; A47L7/04; A47L7/06; A47L9/02; A47L9/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
154 words
An upright vacuum cleaner comprising: a main body having a motor fan for generating a suction force, and a dust-collection chamber for collecting dust, the motor fan providing the suction force to the dust collection chamber, a floor nozzle unit, which is disposed under said main body, and has an inlet port connected to said dust-collection chamber for attracting dust on a floor into said dust-collection chamber by the suction force of said motor fan, a grip handle for moving said upright vacuum cleaner, and a float plate, disposed on a lower face of said floor nozzle unit, including a floor opposing face where a plurality of outlet ports are formed for spouting discharge air to said floor from said motor fan, and a float face is located around said outlet ports to receive a lifting force produced by pressure of the discharge air between said float face and the floor to be cleaned.
Claim 2
Dependent Claim
154 words
An upright vacuum cleaner comprising: a main body having a motor fan for generating a suction force, and a dust-collection chamber for collecting dust, the motor fan providing the suction force to the dust collection chamber, a floor nozzle unit, which is disposed under said main body, and has an inlet port connected to said dust-collection chamber for attracting dust on a floor into said dust-collection chamber by the suction force of said motor fan, a grip handle for moving said upright vacuum cleaner, and a float plate, disposed on a lower face of said floor nozzle unit, including a floor opposing face where a plurality of outlet ports are formed for spouting discharge air to said floor from said motor fan, and a float face is located around said outlet ports to receive a lifting force produced by pressure of the discharge air between said float face and the floor to be cleaned.
Claim 3
Dependent Claim
24 words
An upright vacuum cleaner in accordance with claim 1 wherein said outlet ports are arranged beneath a center of gravity of said vacuum cleaner.
Claim 4
Dependent Claim
43 words
An upright vacuum cleaner in accordance with claim 1 wherein said float unit has an air chamber, which is disposed at an outlet port side of a discharge air passage connecting between said outlet port and said motor fan in said main body.
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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) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |