US5008973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-purpose suction nozzle
Assignee: Duepro AG
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Filing: 1990-01-31
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Granted: 1991-04-23
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Expires: 2010-01-31
Abstract
Abstract A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby the suction nozzle is detachably connected to a suction hose of the vacuum cleaner via a pivotably mounted connector. The suction nozzle has a housing with a first suction opening that communicates with a first flow channel, and with a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel. A brush is rotatably mounted in the housing in such a way that bristles of the brush extend through the first suction opening. A mechanism provides for selective communication of either the first flow channel or the second flow channel with the connector.
Inventors
- 👤 Peter Worwag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:58
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/0405; A47L9/0416
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
244 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction nozzle is detachably connected to a suction line of said vacuum cleaner via a pivotably mounted connector, said suction nozzle comprising: a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, with said housing essentially comprising a rear nozzle portion that is connected to said connector, and a front nozzle portion that is provided with said first and second suction openings, and in which said housing essentially has a low design with two oppositely disposed sides, each of which is provided with one of said suction openings; a partition is disposed between said first and second flow channels, whereby for said selective use of one of said suction openings, said front nozzle portion is rotatable relative to said rear nozzle portion in such a way that one of said sides of said housing, along with the associated suction opening, comes to rest on the floor surface that is to be cleaned; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 2
Dependent Claim
244 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction nozzle is detachably connected to a suction line of said vacuum cleaner via a pivotably mounted connector, said suction nozzle comprising: a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, with said housing essentially comprising a rear nozzle portion that is connected to said connector, and a front nozzle portion that is provided with said first and second suction openings, and in which said housing essentially has a low design with two oppositely disposed sides, each of which is provided with one of said suction openings; a partition is disposed between said first and second flow channels, whereby for said selective use of one of said suction openings, said front nozzle portion is rotatable relative to said rear nozzle portion in such a way that one of said sides of said housing, along with the associated suction opening, comes to rest on the floor surface that is to be cleaned; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 3
Dependent Claim
41 words
A suction nozzle according to claim 1, in which said front and rear nozzle portions are rotatable along an axis of rotation that essentially extends in a direction of movement of said suction nozzle, and are connected via a pivot bearing.
Claim 4
Dependent Claim
119 words
A suction nozzle according to claim 2, in which said front nozzle portion has a rear wall that is rotatably and slidingly disposed against a front wall of said rear nozzle portion; and in which said means for selectively connecting said first or second flow channel with said connector comprises an inlet opening disposed in said front wall of said rear nozzle portion, and two outlet openings disposed in said rear wall of said front nozzle portion, each of which communicates with one of said flow channels, whereby depending upon which of said suction openings is being used, the corresponding outlet opening is aligned with said inlet opening and the other outlet opening is covered by said front wall.
Claim 5
Dependent Claim
223 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction nozzle is detachably connected to a suction line of said vacuum cleaner via a pivotably mounted connector, said suction nozzle comprising: a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, with said housing essentially comprising a rear nozzle portion that is connected to said connector, and a front nozzle portion that is provided with said first and second suction openings, and in which said connector for said suction line is pivotably and rotatably mounted in said rear nozzle portion via an end that is embodied as an upholstery nozzle that is detachable from said rear nozzle portion, with said upholstery nozzle having an upholstery suction opening, and with said upholstery nozzle and said rear nozzle, portion having cooperating ball-and-socket type bearing surfaces for providing a positive resilient connection therebetween; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 6
Dependent Claim
223 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction nozzle is detachably connected to a suction line of said vacuum cleaner via a pivotably mounted connector, said suction nozzle comprising: a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, with said housing essentially comprising a rear nozzle portion that is connected to said connector, and a front nozzle portion that is provided with said first and second suction openings, and in which said connector for said suction line is pivotably and rotatably mounted in said rear nozzle portion via an end that is embodied as an upholstery nozzle that is detachable from said rear nozzle portion, with said upholstery nozzle having an upholstery suction opening, and with said upholstery nozzle and said rear nozzle, portion having cooperating ball-and-socket type bearing surfaces for providing a positive resilient connection therebetween; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 7
Dependent Claim
202 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction nozzle is detachably connected to a suction line of said vacuum cleaner via a pivotably mounted connector, said suction nozzle comprising: a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, and in which said housing has an upper portion, and also has a lower portion in which said two suction openings are provided facing a floor surface that is to be cleaned, with said lower housing portion being mounted in such a way as to be rotatable relative to said upper housing portion about a substantially vertical axis, and with said upper and lower housing portions being provided with respective abutment surfaces that rest slidingly against one another; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 8
Dependent Claim
202 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction nozzle is detachably connected to a suction line of said vacuum cleaner via a pivotably mounted connector, said suction nozzle comprising: a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, and in which said housing has an upper portion, and also has a lower portion in which said two suction openings are provided facing a floor surface that is to be cleaned, with said lower housing portion being mounted in such a way as to be rotatable relative to said upper housing portion about a substantially vertical axis, and with said upper and lower housing portions being provided with respective abutment surfaces that rest slidingly against one another; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 9
Dependent Claim
75 words
A suction nozzle accoridng to claim 5, in which said connector for said suction line is pivotably and rotatably mounted in said upper housing portion via an end that is embodied as an upholstery nozzle that is detachable from said upper housing portion, with said upholstery nozzle having an upholstery suction opening, and with said upholstery nozzle and said upper housing portion having cooperating ball-and-socket type bearing surfaces for providing a resilient positive connection therebetween.
Claim 10
Dependent Claim
87 words
A suction nozzle according to claim 5, in which said means for selectively connecting said first or second flow channel with said connector comprises an inlet opening disposed in said upper housing portion, and two outlet openings disposed in said lower housing portion, each of which communicates with one of said flow channels, whereby depending upon which of said suction openings is being used, the corresponding outlet opening is aligned with said inlet opening and the other outlet opening is closed off relative to said inlet opening.
Claim 11
Dependent Claim
227 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction nozzle is detachably connected to a suction line of said vacuum cleaner via a pivotably mounted connector, said suction nozzle comprising: a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, and in which said housing includes a central portion that is pivotable about a horizontal axis relative to the remainder of said housing, in which said first and second suction openings are provided, with said central housing portion being provided with said first and second flow channels, which are separated from one anther and open into a common discharge channel that is formed by said connector, which is movably mounted on said central housing portion, which has a pivot angle of about 150° between a position of use for said first suction opening and a position of use for said second suction opening; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 12
Dependent Claim
227 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction nozzle is detachably connected to a suction line of said vacuum cleaner via a pivotably mounted connector, said suction nozzle comprising: a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, and in which said housing includes a central portion that is pivotable about a horizontal axis relative to the remainder of said housing, in which said first and second suction openings are provided, with said central housing portion being provided with said first and second flow channels, which are separated from one anther and open into a common discharge channel that is formed by said connector, which is movably mounted on said central housing portion, which has a pivot angle of about 150° between a position of use for said first suction opening and a position of use for said second suction opening; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 13
Dependent Claim
37 words
A suction nozzle according to claim 8, in which a suction air stream flows through only that suction opening that is remote from said connector, with the other suction opening being closed off relative to said connector.
Claim 14
Dependent Claim
93 words
A suction nozzle according to claim 8, in which said first flow channel comprises a first nozzle chamber that communicates with said first suction opening, and a connecting channel from said first nozzle chamber, via a mouth, to an inlet opening of a turbine chamber that communicates via a first discharge elbow with said connector, while said second flow channel comprises a second nozzle chamber that communicates with said second suction opening, and an opening from said second nozzle chamber into a suction channel that communicates via second discharge elbow with said connector.
Claim 15
Dependent Claim
147 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, and in which said housing comprises two parts that are rotatable relative to one another, whereby the angle of rotation of one of those parts from a position of use of one of said suction openings to a position of non-use thereof is 180°; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 16
Dependent Claim
147 words
A multi-purpose suction nozzle, for a vacuum cleaner, for cleaning different types of surfaces, such as hard smooth surfaces, textile floor coverings, and upholstery, whereby said suction a housing having a first suction opening that communicates with a first flow channel, and a second suction opening about which are provided planar slide surfaces and which communicates with a second flow channel, and in which said housing comprises two parts that are rotatable relative to one another, whereby the angle of rotation of one of those parts from a position of use of one of said suction openings to a position of non-use thereof is 180°; a brush that is rotatably mounted in said housing in such a way that bristles of said brush extend through said first suction opening; and means for selectively connecting either said first flow channel or said second flow channel with said connector.
Claim 17
Dependent Claim
23 words
A suction nozzle according to claim 11, which includes arresting means to prevent unintentional turning of said housing parts relative to one another.
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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) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |