US4454627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cleaning textile surfaces
Assignee: Vorwerk and Co Interholding GmbH
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Filing: 1981-11-16
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Granted: 1984-06-19
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Expires: 2001-11-16
Abstract
Abstract A cleaning device operated in conjunction with a vacuum cleaner includes a housing which is composed of a motor housing accommodating a drive motor, a removable nozzle plate formed with a first individual nozzle and a second surface nozzle and enclosing a working tool with a brush, and an air-duct housing forming a suction duct connectable to the vacuum cleaner.
Inventors
- 👤 Hans-Peter Simm
- 👤 Wieland Guhne
- 👤 Christoph Hoesch
- 👤 Renate Friedrichs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:13
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4044; A46; A46B; A46B13/00; A46B13/02; A47L11/34; A47L9/00; A47L9/02; A47L9/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
194 words
In a device for cleaning textile surfaces operable in conjunction with a vacumm cleaner, a combination comprising an electrically driven working tool; an electromotor having an output shaft connected to said working tool to provide for oscillating pivotal movement of the working tool relative to a surface to be cleaned and a housing including a drive motor casing, a nozzle casing and an air-duct casing, said nozzle casing being formed with a first nozzle and a second nozzle, said second nozzle accommodating said working tool, said air-duct casing including a connection element having a suction duct connectable to the inlet of the vacuum cleaner fan, said nozzle casing being formed with a first suction channel communicating with said first nozzle and a second suction channel communicating with said second nozzle, said first suction channel and said second suction channel being selectively open into said suction duct, and said connection element being a grip, said working tool being formed with a projecting tip, said nozzle housing including two projections spaced from each other to form a gap therebetween, said tip being positioned in said gap to provide an axis about which said pivotal movement occurs.
Claim 2
Dependent Claim
194 words
In a device for cleaning textile surfaces operable in conjunction with a vacumm cleaner, a combination comprising an electrically driven working tool; an electromotor having an output shaft connected to said working tool to provide for oscillating pivotal movement of the working tool relative to a surface to be cleaned and a housing including a drive motor casing, a nozzle casing and an air-duct casing, said nozzle casing being formed with a first nozzle and a second nozzle, said second nozzle accommodating said working tool, said air-duct casing including a connection element having a suction duct connectable to the inlet of the vacuum cleaner fan, said nozzle casing being formed with a first suction channel communicating with said first nozzle and a second suction channel communicating with said second nozzle, said first suction channel and said second suction channel being selectively open into said suction duct, and said connection element being a grip, said working tool being formed with a projecting tip, said nozzle housing including two projections spaced from each other to form a gap therebetween, said tip being positioned in said gap to provide an axis about which said pivotal movement occurs.
Claim 3
Dependent Claim
37 words
The device of claim 1, said nozzle housing having a lower surface, said drive motor casing having a lower surface, the lower surface of said drive motor casing extending above said lower surface of said nozzle housing.
Claim 4
Dependent Claim
17 words
The device of claim 2, wherein said drive motor casing is provided with openings for motor cooling.
Claim 5
Dependent Claim
27 words
The device of claim 3, said drive motor casing having a wall facing said connection element, at least one of said openings being formed in said wall.
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) | 1987-06-19 | 1987-12-19 | 1988-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-19 | 1991-12-19 | 1992-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-19 | 1995-12-19 | 1996-06-19 | $7700.00 | Window Closed / Lapsed |