Patent US4200952A successfully refreshed from Google Patents.
US4200952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cleaning floors by means of a liquid
Assignee: CEMSTO BV
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Filing: 1978-11-07
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Granted: 1980-05-06
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Expires: 1998-11-07
Abstract
Abstract A device for cleaning floors with the aid of a liquid comprising: a hollow, elongated suction mouth piece having a longitudinal axis and having an elongated suction port extending along the lower surface thereof parallel to said longitudinal axis, a suction tube connected to the mouth piece and communicating at one end with the interior of the mouth piece, the suction tube having an opposite end for connection with a suction device; a spray nozzle mounted adjacent each end of the elongated suction mouth piece, said nozzles being directed downwardly and inwardly toward each other.
Inventors
- 👤 Jan F. Smies
- 👤 Leo Dijkmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:26
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4044; A47L11/29; A47L11/30; A47L11/408; A47L11/4088; E; E01; E01H; E01H1/00; E01H1/10; E01H1/101; E01H1/103
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
132 words
Device for cleaning floors with the aid of a liquid, said device comprising a tube, said tube at its one end being in communication with a suction device and at its other end opening into an elongated suction mouth-piece, and a conduit, which at its one end is in communication with the source of a cleansing fluid under pressure and at its other end is in communication with at least one spray nozzle, said nozzle being mounted at a fixed position above the suction port of the suction mouth-piece and being directed towards a point lying beyond one of the long sides of the suction mouth-piece, characterized in that two spray nozzles are mounted adjacent the small sides of the suction mouth-piece, said spray nozzles being directed to each other obliquely inwardly.
Claim 2
Dependent Claim
132 words
Device for cleaning floors with the aid of a liquid, said device comprising a tube, said tube at its one end being in communication with a suction device and at its other end opening into an elongated suction mouth-piece, and a conduit, which at its one end is in communication with the source of a cleansing fluid under pressure and at its other end is in communication with at least one spray nozzle, said nozzle being mounted at a fixed position above the suction port of the suction mouth-piece and being directed towards a point lying beyond one of the long sides of the suction mouth-piece, characterized in that two spray nozzles are mounted adjacent the small sides of the suction mouth-piece, said spray nozzles being directed to each other obliquely inwardly.
Claim 3
Dependent Claim
18 words
Device in accordance with claim 1, characterized in that the mouth-piece is rotatably mounted on the suction tube.
Claim 4
Independent Claim
104 words
A device for cleaning floors with the aid of a liquid comprising: a hollow, elongated suction mouth piece having a longitudinal axis and having an elongated suction port extending along the lower surface thereof parallel to said longitudinal axis; a suction tube connected to the mouth piece and communicating at one end with the interior of the mouth piece, the suction tube having an opposite end for connection with a suction device; a spray nozzle mounted adjacent each end of the elongated suction mouth piece, said nozzles being directed downwardly and inwardly toward each other; and conduit means for supplying liquid to the nozzles.
Claim 5
Independent Claim
104 words
A device for cleaning floors with the aid of a liquid comprising: a hollow, elongated suction mouth piece having a longitudinal axis and having an elongated suction port extending along the lower surface thereof parallel to said longitudinal axis; a suction tube connected to the mouth piece and communicating at one end with the interior of the mouth piece, the suction tube having an opposite end for connection with a suction device; a spray nozzle mounted adjacent each end of the elongated suction mouth piece, said nozzles being directed downwardly and inwardly toward each other; and conduit means for supplying liquid to the nozzles.
Claim 6
Dependent Claim
26 words
A device as in claim 3 wherein said mouth piece is straight and wherein said nozzles are offset from said mouth piece in a transverse direction.
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) | 1983-05-06 | 1983-11-05 | 1984-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-06 | 1987-11-05 | 1988-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-06 | 1991-11-05 | 1992-05-06 | $7700.00 | Window Closed / Lapsed |