US4369544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine to wash surfaces
Assignee: Novum Novita in Elettrodomestica SRL
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Filing: 1981-01-02
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Granted: 1983-01-25
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Expires: 2001-01-02
Abstract
Abstract The invention embodies a machine to wash surfaces which comprises: a suction element positioned at least at its front, a front humidifier element which can possibly be shut off and which cooperates with an absorbing sheet, a sprayer which can possibly be shut off, and roller brushes. The machine also may advantageously comprise a rear absorbing sheet and an intermediate dryer.
Inventors
- 👤 Sebastiano Parisi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4063; A47L11/4069; A47L11/29; A47L11/30; A47L11/34; A47L11/4036; A47L11/4041; A47L11/4044; A47L11/4047; A47L11/408; A47L11/4086; A47L11/4088
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
103 words
A machine to wash surfaces to be walked on having a front and back which comprises suction means in the front directed toward the surface to pick up loose materials from the surface, absorbing means positioned behind said suction means contactable with said surface to wipe up material loosened from the surface, humidifier means cooperating with said absorbing means to loosen material from the surface, sprayer means positioned behind said absorbing means directed toward said surface to moisten and loosen material from the surface, and brush means positioned behind said sprayer means and contactable with said surface to loosen material from the surface.
Claim 2
Dependent Claim
103 words
A machine to wash surfaces to be walked on having a front and back which comprises suction means in the front directed toward the surface to pick up loose materials from the surface, absorbing means positioned behind said suction means contactable with said surface to wipe up material loosened from the surface, humidifier means cooperating with said absorbing means to loosen material from the surface, sprayer means positioned behind said absorbing means directed toward said surface to moisten and loosen material from the surface, and brush means positioned behind said sprayer means and contactable with said surface to loosen material from the surface.
Claim 3
Dependent Claim
36 words
The machine of claim 1, wherein said brush means consist of at least one brushing roller which rotates about an axis parallel to the floor and is positioned substantially crosswise to the movement of the machine.
Claim 4
Dependent Claim
32 words
The machine of claim 1 or claim 2, wherein the absorbing means consist of at least one wiper and pressure means to elastically press the wiper against the surface to be cleaned.
Claim 5
Dependent Claim
21 words
The machine of claim 1, wherein the absorbing means comprise a wiper sheet movable along the lengthwise axis of the machine.
Claim 6
Dependent Claim
23 words
The machine of claim 1, wherein the absorbing means comprise at least one wiper sheet movable along the crosswise axis of the machine.
Claim 7
Dependent Claim
39 words
The machine of claim 1, wherein the sprayer means consist of at least one perforated pipe placed crosswise to the lengthwise axis of the machine between the brush means and absorbing means to spray liquid on to said surface.
Claim 8
Dependent Claim
34 words
The machine of claim 1, wherein the suction means consist of a suction intake extending at least crosswise to the lengthwise axis of the machine and kept near to the surface to be cleaned.
Claim 9
Dependent Claim
32 words
The machine of claim 1 wherein the humidifier means consist of a distributor pipe positioned crosswise to the lengthwise axis of the machine and in a seating present in the absorbing means.
Claim 10
Dependent Claim
15 words
The machine of claim 1 including drying means behind the brush means for blowing air.
Claim 11
Dependent Claim
14 words
The machine of claim 1, wherein said humidifier dispenses stream as a detergent substance.
Claim 12
Dependent Claim
28 words
The machine of claim 1 including means to produce steam connected to the humidifier means and sprayer means containing an adequate quantity of liquid which can be vaporized.
Claim 13
Dependent Claim
16 words
The machine of claim 11 including tank means to feed liquid to said steam producing means.
Claim 14
Dependent Claim
30 words
The machine of claim 1, wherein said absorbing means include a winding roller for winding an absorbing sheet and unclamping and clamping means for holding said winding roller in position.
Claim 15
Dependent Claim
19 words
The machine of claim 1, wherein the suction means is retractable near to a fixed edge of the machine.
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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |