US3775800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush
Assignee: Individual
•
Filing: 1971-12-20
•
Granted: 1973-12-04
•
Expires: 1991-12-20
Abstract
Abstract Portable electromechanical household tool appliance consisting of a box-like casing made of a number of parts of plastics enclosing an electric motor. A driving shaft of the motor emerges from the box-like casing. A plurality of working tools or cleaning members can be removably secured to the device, the cleaning members including a first interchangeable cleaning member provided with brush means and removably mounted on the shaft and a second interchangeable cleaning member provided with a peripheral row of bristles and removably mounted on the casing of the device.
Inventors
- 👤 M Veneziani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:46
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A01; A01D; A01D34/00; A01D34/835; A01D34/84; A01G; A01G3/00; A01G3/04; A01G3/047; A01G3/053; A01G3/0535; A47L1/00; A47L1/02; A47L1/05; A47L11/38; A47L11/4063; A47L11/4069; A47L11/4075; A47L23/00; A47L23/04; A47L23/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
180 words
A cleaning device in form of a brush, particularly for cleaning window-panes, comprising a housing having a handle extending therefrom; a motor mounted within said housing and having a shaft extending out of said housing; at least a first cleaning member including a disc member and brush means mounted thereon and extending substantially perpendicular thereto; a second cleaning member having a peripheral border provided with a row of bristles arranged substantially surrounding said first cleaning member; and means for removably mounting said first cleaning member on said shaft for rotation therewith and said second cleaning member on said housing for being rigid therewith, said means including an externally threaded hub rigid with said housing and surrounding said shaft for a portion of its length, thereby to have the end portion of said shaft emerging from said externally threaded hub; a central threaded bore in said second cleaning member for screwing said second cleaning member on said externally threaded hub; and means for removably securing said first cleaning member on said end of said shaft emerging from said externally threaded hub.
Claim 2
Dependent Claim
180 words
A cleaning device in form of a brush, particularly for cleaning window-panes, comprising a housing having a handle extending therefrom; a motor mounted within said housing and having a shaft extending out of said housing; at least a first cleaning member including a disc member and brush means mounted thereon and extending substantially perpendicular thereto; a second cleaning member having a peripheral border provided with a row of bristles arranged substantially surrounding said first cleaning member; and means for removably mounting said first cleaning member on said shaft for rotation therewith and said second cleaning member on said housing for being rigid therewith, said means including an externally threaded hub rigid with said housing and surrounding said shaft for a portion of its length, thereby to have the end portion of said shaft emerging from said externally threaded hub; a central threaded bore in said second cleaning member for screwing said second cleaning member on said externally threaded hub; and means for removably securing said first cleaning member on said end of said shaft emerging from said externally threaded hub.
Claim 3
Dependent Claim
49 words
A cleaning device as claimed in claim 1, wherein said peripheral border of said second cleaning member provided with said row of bristles has portions converging into substantially right angles, thereby to allow the bristles of said second cleaning member to reach and clean the corners of the window-panes.
References Cited (Backward Citations)
US1093820A
Cited
US1433021A
Cited
US1464336A
Cited
US1581855A
Cited
US2178943A
Cited
US2644189A
Cited
US2753576A
Cited
US2967314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |