US3624668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rug cleaning and rinsing device
Assignee: Individual
•
Filing: 1970-07-23
•
Granted: 1971-11-30
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Expires: 1990-07-23
Abstract
Abstract A surface cleaning device has a housing with an annular channel which is continuously opened on its inner face and positioned adjacent the outer peripheral edge of a rotor. The underside of the rotor is provided with a spray and a plurality of nozzles adjacent its peripheral edge with the spray communicating with a cleaning liquid and the nozzles communicating through passages to the outer periphery of the rotor, so as to be in continuous communication with the annular channel. A vacuum is applied through the annular channel to the nozzles to pick up liquid discharge upon the surface by the spray.
Inventors
- 👤 Helmuth W Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:35
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4044; A47L11/34
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
165 words
In a surface cleaning and rinsing device, the combination of a circular housing disposed substantially parallel to a surface to be cleaned and having an annular channel therein, the inner circumferential face of said annular channel being continuously open, a rotor mounted for rotation within said housing and having its outer peripheral edge adjacent the annular channel opening, spray means on the underside of said rotor adjacent the outer periphery thereof, passage means within said rotor for communicating said spray means with a source of cleaning liquid, a plurality of nozzles on the underside of said rotor space along the outer periphery thereof, passage means within said rotor extending from each of said nozzles to the outer peripheral edge of said rotor so that the nozzles continuously communicate with said annular channel, and means for connecting said annular channel to a vacuum source so that a suction is established in said nozzles as they rotate to extract liquids sprayed on the surface to be cleaned.
Claim 2
Dependent Claim
165 words
In a surface cleaning and rinsing device, the combination of a circular housing disposed substantially parallel to a surface to be cleaned and having an annular channel therein, the inner circumferential face of said annular channel being continuously open, a rotor mounted for rotation within said housing and having its outer peripheral edge adjacent the annular channel opening, spray means on the underside of said rotor adjacent the outer periphery thereof, passage means within said rotor for communicating said spray means with a source of cleaning liquid, a plurality of nozzles on the underside of said rotor space along the outer periphery thereof, passage means within said rotor extending from each of said nozzles to the outer peripheral edge of said rotor so that the nozzles continuously communicate with said annular channel, and means for connecting said annular channel to a vacuum source so that a suction is established in said nozzles as they rotate to extract liquids sprayed on the surface to be cleaned.
Claim 3
Dependent Claim
27 words
In a surface cleaning and rinsing device as claimed in claim 1 and Comprising a radially extending blade within each nozzle engageable with the surface being cleaned.
Claim 4
Dependent Claim
24 words
In a surface cleaning and rinsing device as claimed in claim 2 wherein said nozzle has an elongated opening extending radially of the rotor.
Claim 5
Dependent Claim
24 words
In a surface cleaning and rinsing device as claimed in claim 3 wherein said blade is positioned in the center of each nozzle opening.
Claim 6
Dependent Claim
53 words
In a surface cleaning and rinsing device as claimed in claim 1 wherein said spray means is positioned immediately behind a nozzle with respect to the direction of rotation of the rotor so that the next succeeding nozzle makes the initial pickup of liquid discharged by the spray upon the surface being cleaned.
Claim 7
Dependent Claim
25 words
In a surface cleaning and rinsing device as claimed in claim 1 wherein said nozzles and spray means are movable along the same circular path.
Claim 8
Dependent Claim
29 words
In a surface cleaning and rinsing device as claimed in claim 1 wherein said annular channel is stationary within said housing and is adjacent to the outer periphery thereof.
References Cited (Backward Citations)
US3040366A
Cited
US3314099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |