Patent US5553349A successfully refreshed from Google Patents.
US5553349A
Expired / Lapsed
US
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Vacuum cleaner nozzle
Assignee: Electrolux AB
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Filing: 1995-02-06
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Granted: 1996-09-10
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Expires: 2015-02-06
Abstract
Abstract A vacuum cleaner nozzle having a first nozzle part (11) which has brush elements (23) or the like facing the floor and a second nozzle part (25) which is movably arranged with respect to the first part (11) and which has at least one suction opening (27) through which air flows to an outlet tube (13) connected to the nozzle. The second nozzle part (25) is supported by the first nozzle part (11) by means of a resilient element (31). The resilient element maintains the second part (25) above the floor when the nozzle is moved on a hard surface and allows the second part (25) to move toward the floor when the nozzle is moved on a soft surface, such as a soft carpet.
Inventors
- 👤 Lars G. Kilstrom
- 👤 Nils T. Lindquist
- 👤 Rolf G. Sjoberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:35
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/06; A47L9/0633; A47L9/064; A47L9/0646
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
133 words
A vacuum cleaner nozzle comprising a first nozzle part (11) which has brush elements (23) facing a floor and defining a space (24) in which a second nozzle part (25) is movably arranged with respect to the first part (11), the second nozzle part having at least one suction opening (27) through which air flows to an outlet tube (13) which is connected to the nozzle, wherein the second nozzle part (25) is supported from the first nozzle part (11) by means of a resilient element (31), and the resilient element is operable to maintain the second nozzle part (25) above the floor when the nozzle is moved on a rigid surface and permits the second nozzle part (25) to move toward the floor when the nozzle is moved on a yieldable surface.
Claim 2
Dependent Claim
133 words
A vacuum cleaner nozzle comprising a first nozzle part (11) which has brush elements (23) facing a floor and defining a space (24) in which a second nozzle part (25) is movably arranged with respect to the first part (11), the second nozzle part having at least one suction opening (27) through which air flows to an outlet tube (13) which is connected to the nozzle, wherein the second nozzle part (25) is supported from the first nozzle part (11) by means of a resilient element (31), and the resilient element is operable to maintain the second nozzle part (25) above the floor when the nozzle is moved on a rigid surface and permits the second nozzle part (25) to move toward the floor when the nozzle is moved on a yieldable surface.
Claim 3
Dependent Claim
28 words
A vacuum cleaner nozzle according to claim 1, wherein the second nozzle part (25) is connected to the first nozzle part (11) by a flexible sealing member (29).
Claim 4
Dependent Claim
53 words
A vacuum cleaner nozzle according to claim 2, wherein the second nozzle part (25) comprises a plate (26) whose lower side forms an inlet part with channels opening into the suction opening (27), and wherein the suction opening is arranged centrally on the plate and the sealing member (29) surrounds the suction opening.
Claim 5
Dependent Claim
23 words
A vacuum cleaner according to claim 1, wherein opposite ends of the first nozzle part (11) are provided with a supporting wheel 22.
Claim 6
Dependent Claim
23 words
A vacuum cleaner nozzle according to claim 1, wherein at least one brush element is placed in front of the second nozzle part.
Claim 7
Dependent Claim
21 words
A vacuum cleaner according to claim 1, further comprising means (34) for limiting downward movement of the second nozzle part (25).
Claim 8
Dependent Claim
21 words
A vacuum cleaner nozzle according to claim 1, wherein at least one brush element is placed behind the second nozzle part.
Claim 9
Dependent Claim
160 words
A vacuum cleaner nozzle comprising a first nozzle part (11) and a second nozzle part (25), said first nozzle part (11) being connected to an outlet tube (13) via a pivot (12) with at least one wheel being located near said pivot, said first nozzle part having brush elements (23) facing a floor and defining a space (24) in which the second nozzle part (25) is movably arranged with respect to said first nozzle part (11), said second nozzle part (25) having at least one suction opening (27) through which air flows toward the outlet tube (13), wherein the second nozzle part is supported from the first nozzle part by a resilient element (31), and said resilient element is operable to maintain the second nozzle part (25) above a floor when the nozzle is moved across a rigid surface and permits the second nozzle part (25) to move toward the floor when the nozzle is moved across a yieldable surface.
Claim 10
Dependent Claim
160 words
A vacuum cleaner nozzle comprising a first nozzle part (11) and a second nozzle part (25), said first nozzle part (11) being connected to an outlet tube (13) via a pivot (12) with at least one wheel being located near said pivot, said first nozzle part having brush elements (23) facing a floor and defining a space (24) in which the second nozzle part (25) is movably arranged with respect to said first nozzle part (11), said second nozzle part (25) having at least one suction opening (27) through which air flows toward the outlet tube (13), wherein the second nozzle part is supported from the first nozzle part by a resilient element (31), and said resilient element is operable to maintain the second nozzle part (25) above a floor when the nozzle is moved across a rigid surface and permits the second nozzle part (25) to move toward the floor when the nozzle is moved across a yieldable surface.
Claim 11
Dependent Claim
28 words
A vacuum cleaner nozzle according to claim 8, wherein the second nozzle part (25) is connected to the first nozzle part (11) by a flexible sealing member (29).
Claim 12
Dependent Claim
53 words
A vacuum cleaner nozzle according to claim 9, wherein the second nozzle part (25) comprises a plate (26) whose lower side forms an inlet part with channels opening into the suction opening (27), and wherein the suction opening is arranged centrally on the plate and the sealing member (29) surrounds the suction opening.
Claim 13
Dependent Claim
23 words
A vacuum cleaner according to claim 8, wherein opposite ends of the first nozzle part (11) are provided with a supporting wheel 22.
Claim 14
Dependent Claim
23 words
A vacuum cleaner nozzle according to claim 8, wherein at least one brush element is placed in front of the second nozzle part.
Claim 15
Dependent Claim
23 words
(new) A vacuum cleaner according to claim 8, further comprising means (34) for limiting downward movement of the second nozzle part (25) .
Claim 16
Dependent Claim
21 words
A vacuum cleaner nozzle according to claim 8, wherein at least one brush element is placed behind the second nozzle part.
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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) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |