US4433451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cleaning surfaces
Assignee: Novum Novita in Elettrodomestica SRL
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Filing: 1981-01-02
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Granted: 1984-02-28
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Expires: 2001-01-02
Abstract
Abstract A device for cleaning surfaces using steam as dirt soaking element and dirt detergent element, whereby extraction components, suction components and steam generating components are available, comprising: a cleaning head with suction components, moisturizing components, brushing components and absorption and cleaning components interacting with spraying components and a basic unit comprising suction fans, steam generating unit and control elements.
Inventors
- 👤 Sebastiano Parisi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:10
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4041; A47L11/34
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
86 words
A device for cleaning surfaces comprising a cleaning head having a front and back composed of means to suck up material from said surfaces, means to moisten said surfaces, means to brush said surfaces, and means to absorb dust and wipe clean said surfaces positioned between said moistening means and said surfaces and interacting with said moistening means; a basic unit composed of a suction fan, steam generator and means to control said suction and moistening means and means interconnecting said cleaning head and basic unit.
Claim 2
Independent Claim
86 words
A device for cleaning surfaces comprising a cleaning head having a front and back composed of means to suck up material from said surfaces, means to moisten said surfaces, means to brush said surfaces, and means to absorb dust and wipe clean said surfaces positioned between said moistening means and said surfaces and interacting with said moistening means; a basic unit composed of a suction fan, steam generator and means to control said suction and moistening means and means interconnecting said cleaning head and basic unit.
Claim 3
Dependent Claim
90 words
The device of claim 1, wherein said basic unit includes first and second walled compartments, said steam generator being housed in said first compartment, a first hose attached to said steam generator and extending through the wall of said first compartment to said cleaning head, said suction fan being housed in said second compartment, a second hose communicating with said fan through the wall of said second compartment and extending to said cleaning head, wheel elements attached to said first compartment and a handle element attached to said second compartment.
Claim 4
Dependent Claim
20 words
The device of claim 2, wherein said steam generator comprises means to hold water and means to heat said water.
Claim 5
Dependent Claim
21 words
The device of claim 2, wherein said steam generator comprises a container of vaporizable liquid and means to heat said liquid.
Claim 6
Dependent Claim
55 words
The device of claim 1 including means to regulate the height of said brush means and wherein said suction means are positioned at the front of said cleaning head and extending across thereof, said brush means and moistening means are positioned behind said suction means and said absorption and wiping means comprise a replaceable cloth.
Claim 7
Dependent Claim
45 words
The device of claim 5 wherein said moistening means comprise a first spray hose for spraying steam directly on the surface to be cleaned and a second spray hose for spraying steam directly on said cloth and a valve for distributing steam to said hoses.
Claim 8
Dependent Claim
37 words
The device of claim 5 wherein said absorbing and wiping means comprise two rollers about which the replaceable cloth is wound and means to rotate said rollers to advance said cloth from one roller to the other.
Claim 9
Dependent Claim
18 words
The device of claim 5 wherein said second spray hose is directed toward the surface to be cleaned.
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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) | 1987-02-27 | 1987-08-29 | 1988-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-27 | 1991-08-29 | 1992-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-27 | 1995-08-29 | 1996-02-28 | $7700.00 | Window Closed / Lapsed |