US4476607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable vacuum cleaning device
Assignee: RIZVAC Ltd Inc
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Filing: 1982-09-30
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Granted: 1984-10-16
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Expires: 2002-09-30
Abstract
Abstract A lightweight portable vacuum cleaner and attachment nozzle are disclosed which may be readily carried by an operator to vacuum both normally accessible and normally inaccessible areas. The vacuum cleaner comprises an elbow-shaped plastic housing which encloses a filter bag and blower motor. The vacuum is carried under the arm of the operator supported from a strap that goes over the operator's shoulder. A deodorant chamber is mounted to the exhaust screen of the housing, so that exhaust from the blower motor can be used to distribute scented odor over the surface that is being cleaned. In addition, footings are mounted adjacent to the exhaust screen so that proper ventilation is assured for the blower motor. A flexible hose with suction tube is frictionally fitted into an aperture in the vacuum cleaner and thereby delivers suction to the area at which they are directed. A specific attachment nozzle is coupled to a 45° coupling which is coupled to the suction tube. The attachment nozzle is arranged longitudinally to the suction tube thereby permitting the operator to vacuum in a sweeping side-to-side motion. The attachment nozzle comprises a cylindrical plastic tube into which longitudinal slots are cut which direct suction to the area to be cleaned. A closed end of the plastic tube is fitted with a permanent magnet to pick up metal articles. In addition, the attachment nozzle is provided with prongs for loosing material trapped in the fibrous material of carpets.
Inventors
- 👤 David Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:24
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
203 words
A vacuum cleaner attachment nozzle for coupling to a suction tube of a vacuum cleaner, said attachment is adapted for cleaning carpeting and other surfaces, said attachment nozzle comprising: a tube means enclosing an interior and comprising a first end, a second end and a series of elongated slots, the first end of said tube means is open for coupling to a suction tube of a vacuum cleaner, so that the interior of said tube means communicates with the vacuum created in a suction tube of a vacuum cleaner; the elongated slots are formed in a longitudinal direction along said tube means so that the vacuum created in the interior of said tube means by a vacuum cleaner communiates with a surface to be cleaned, the elongated slots form a suction plane for drawing material from a surface to be cleaned into said tube means; and slide means are interposed between the elongated slots to raise the suction plane formed by the longitudinal slots above the plane of the surface to be cleaned, so that an operator can easily slide said attachment nozzle along a surface to be cleaned by means of said suction tube in a side-to-side motion during the vacuuming operation.
Claim 2
Dependent Claim
203 words
A vacuum cleaner attachment nozzle for coupling to a suction tube of a vacuum cleaner, said attachment is adapted for cleaning carpeting and other surfaces, said attachment nozzle comprising: a tube means enclosing an interior and comprising a first end, a second end and a series of elongated slots, the first end of said tube means is open for coupling to a suction tube of a vacuum cleaner, so that the interior of said tube means communicates with the vacuum created in a suction tube of a vacuum cleaner; the elongated slots are formed in a longitudinal direction along said tube means so that the vacuum created in the interior of said tube means by a vacuum cleaner communiates with a surface to be cleaned, the elongated slots form a suction plane for drawing material from a surface to be cleaned into said tube means; and slide means are interposed between the elongated slots to raise the suction plane formed by the longitudinal slots above the plane of the surface to be cleaned, so that an operator can easily slide said attachment nozzle along a surface to be cleaned by means of said suction tube in a side-to-side motion during the vacuuming operation.
Claim 3
Dependent Claim
18 words
A vacuum cleaner attachment nozzle in accordance with claim 1 wherein said tube means comprises a cylindrical tube.
Claim 4
Dependent Claim
24 words
A vacuum cleaner attachment nozzle in accordance with claim 2 wherein said second end of said tube means is closed by a covering plate.
Claim 5
Dependent Claim
42 words
A vacuum clener attachment nozzle in accordance with claim 3 further comprising a magnetic means which is mounted on said covering plate so that metal articles located on said surface to be cleaned can be magnetically picked up by said magnetic means.
Claim 6
Dependent Claim
67 words
A vacuum cleaner attachment nozzle in accordance with claim 4 further comprising prong means which extend outwardly from said second end of said tube means and which do not in a normal vacuuming operation come in contact with a surface to be cleaned but said prong means may be selectively used to manipulate a surface to be cleaned so that deeply entrained matter can be released therefrom.
Claim 7
Dependent Claim
33 words
A vacuum cleaner attachment nozzle in accordance with claim 6 wherein said cylindrical tube is formed from a transparent plastic so that the flow of material through said cylindrical tube can be monitored.
Claim 8
Dependent Claim
29 words
A vacuum cleaner attachment nozzle in accordance with claim 6 wherein said plurality of slots comprises three longitudinally extending slots divided by said slide means comprising two arcuate slides.
Claim 9
Dependent Claim
24 words
A vacuum cleaner attachment nozzle in accordance with claim 7 wherein said prong means comprises two prongs that are extensions of said cylindrical tube.
Claim 10
Dependent Claim
27 words
A vacuum cleaner attachment nozzle in accordance with claim 8 wherein said cylindrical tube, slide means and prongs are integrally formed from a section of plastic pipe.
Claim 11
Dependent Claim
229 words
A vacuum cleaner for cleaning surfaces, comprising a vacuum blower means for creating a vacuum, a suction tube and a nozzle assembly, wherein the vacuum created by said blower means is transmitted by said suction tube to the nozzle assembly for vacuuming a surface to be cleaned, the improvement comprising said nozzle assembly which comprises: a tube means enclosing an interior and comprising a first end, a second end and a series of elongated slots, the first end of said tube means is open for coupling to said suction tube of said vacuum cleaner, so that the interior of said tube means communicates with the vacuum created by said blower means of said vacuum cleaner; the elongated slots are formed in a longitudinal direction along said tube means so that the vacuum created in the interior of said tube means by said vacuum cleaner communicates with a surface to be cleaned, the elongated slots form a suction plane for drawing material from a surface to be cleaned into said tube means; and slide means are interposed between the elongated slots to raise the suction plane formed by the longitudinal slots above the plane of the surface to be cleaned, so that an operator can easily slide said nozzle assembly along a surface to be cleaned by means of said suction tube in a side-to-side motion during the vacuuming operation.
Claim 12
Dependent Claim
229 words
A vacuum cleaner for cleaning surfaces, comprising a vacuum blower means for creating a vacuum, a suction tube and a nozzle assembly, wherein the vacuum created by said blower means is transmitted by said suction tube to the nozzle assembly for vacuuming a surface to be cleaned, the improvement comprising said nozzle assembly which comprises: a tube means enclosing an interior and comprising a first end, a second end and a series of elongated slots, the first end of said tube means is open for coupling to said suction tube of said vacuum cleaner, so that the interior of said tube means communicates with the vacuum created by said blower means of said vacuum cleaner; the elongated slots are formed in a longitudinal direction along said tube means so that the vacuum created in the interior of said tube means by said vacuum cleaner communicates with a surface to be cleaned, the elongated slots form a suction plane for drawing material from a surface to be cleaned into said tube means; and slide means are interposed between the elongated slots to raise the suction plane formed by the longitudinal slots above the plane of the surface to be cleaned, so that an operator can easily slide said nozzle assembly along a surface to be cleaned by means of said suction tube in a side-to-side motion during the vacuuming operation.
Claim 13
Dependent Claim
65 words
A vacuum cleaner in accordance with claim 10 further comprising prong means which extend outwardly from the second end of said tube means and which do not in a normal vacuuming operation come in contact with a surface to be cleaned but said prong means may be selectively used to manipulate the surface to be cleaned so that deeply entrained matter can be released therefrom.
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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) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |