Patent US5135552A successfully refreshed from Google Patents.
US5135552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: US Philips Corp
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Filing: 1991-12-05
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Granted: 1992-08-04
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Expires: 2011-12-05
Abstract
Abstract A vacuum cleaner is provided comprising a housing (1) with two filter systems (2,3) arranged in series, means (4) for generating an air flow through the filter systems, the second filter system (3) as seen in the direction of flow being a cyclone filter system, which vacuum cleaner is provided with one reservoir (5) for collecting dust from both filter systems (2,3), which reservoir can be closed off with a lid (14), is suitable for accommodating a disposable dust bag (6), and is furthermore divided into two compartments (5a, 5b) by a wall (13), each reservoir compartment serving to collect separated dust from the accompanying filter system, while the wall (13) is fastened in the reservoir (5) in such a way that it can be taken out. Preferably, the removable wall (13) is fastened to the lid (14). As a result, the user can remove all the dust from the vacuum cleaner in one operation.
Inventors
- 👤 Marten P. Weistra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:01
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/16; A47L9/1616; A47L9/1625; A47L9/14; A47L9/1418; Y; Y10; Y10S; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
128 words
A vacuum cleaner comprising a housing (1) with two filter systems (2, 3) connected in series and means for generating an air flow through the filter systems, the second filter system (3) as seen in the direction of flow being a cyclone filter system, wherein the vacuum cleaner is provided with one reservoir (5) for collecting dust from both filter systems (2, 3), which reservoir can be closed off by a lid (14), is suitable for accommodating a disposable dust bag (6), and is furthermore divided into two compartments (5a, 5b) by a wall (13), each reservoir compartment serving to collect dust separated by the accompanying filter system, while the said wall (13) is fastened in the reservoir (5) in such a way that it can be removed.
Claim 2
Dependent Claim
128 words
A vacuum cleaner comprising a housing (1) with two filter systems (2, 3) connected in series and means for generating an air flow through the filter systems, the second filter system (3) as seen in the direction of flow being a cyclone filter system, wherein the vacuum cleaner is provided with one reservoir (5) for collecting dust from both filter systems (2, 3), which reservoir can be closed off by a lid (14), is suitable for accommodating a disposable dust bag (6), and is furthermore divided into two compartments (5a, 5b) by a wall (13), each reservoir compartment serving to collect dust separated by the accompanying filter system, while the said wall (13) is fastened in the reservoir (5) in such a way that it can be removed.
Claim 3
Dependent Claim
19 words
A vacuum cleaner as claimed in claim 1 wherein the removable wall (13) is fastened to the lid (14).
Claim 4
Dependent Claim
20 words
A vacuum cleaner as claimed in claim 2 wherein the cyclone filter system (3) is fastened to the lid (14).
Claim 5
Dependent Claim
22 words
A vacuum cleaner as claimed in claim 3 wherein the lid (14) is hinged to the housing (1) of the vacuum cleaner.
Claim 6
Dependent Claim
34 words
A vacuum cleaner as claimed in claim 1 wherein a window frame (8) is present for clamping an edge of the disposable dust bag (6) on an upper rim (7) of the reservoir (5).
Claim 7
Dependent Claim
30 words
A vacuum cleaner as claimed in claim 1 wherein the first filter system (2) as seen in the direction of flow is formed by a plate (9) provided with holes.
Claim 8
Dependent Claim
19 words
A vacuum cleaner as claimed in claim 6 wherein the holes said are not more than 2 mm large.
Claim 9
Dependent Claim
25 words
A vacuum cleaner as claimed in claim 6 wherein the lid (14) is provided with an inlet opening (15) for the first filter system (2).
Claim 10
Dependent Claim
42 words
A vacuum cleaner as claimed in claim 1, wherein the first filter system (2) as seen in the direction of flow is also a cyclone filter system and in that both cyclone filter systems (2, 3) are arranged next to one another.
Claim 11
Dependent Claim
50 words
A vacuum cleaner as claimed in claim 9 wherein both cyclone filter systems (2, 3) are fastened to the lid (14) and are each provided with a flat, box-shaped cyclone chamber (20, 10) whose bottom comprises a discharge slot (21, 11) which provides access to the accompanying reservoir (5a, 5b).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-04 | 1996-02-03 | 1996-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-04 | 2000-02-03 | 2000-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-04 | 2004-02-03 | 2004-08-04 | $7700.00 | Window Closed / Lapsed |