Patent US4837888A successfully refreshed from Google Patents.
US4837888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction nozzle for a vacuum cleaning device
Assignee: Individual
•
Filing: 1987-06-24
•
Granted: 1989-06-13
•
Expires: 2007-06-24
Abstract
Abstract Suction nozzle for use in connection with a vacuum cleaning device for cleaning simultaneously the vertical surface (3) of a plinth (5), which is provided with a textile covering, and the immediately adjacent floor surface (2) likewise provided with a textile flooring. The suction nozzle (1) is provided with two suction openings (7 and 8) arranged approximately perpendicularly relative to each other so that the horizontal suction opening (7) rests on the floor surface (2) to be cleaned while the vertical suction opening (8) is in contact with the vertical surface (3) of the plinth (5). For increasing the cleaning effect, at least one rotating, mechanincally driven brush (5) is provided within the horizontal suction opening (7) and the vertical suction opening (8).
Inventors
- 👤 Siegfried Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:36
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
166 words
A nozzle for use with a vacuum cleaning device, said nozzle being adapted to be detachably connected to a vacuum cleaning device through a suction line, characterized in that said nozzle comprises a housing having a bottom wall and a side wall, said bottom wall having a bottom opening and said side wall having a side opening through which dirt enters the housing when the vacuum cleaning device is operable; brush means in said housing, said brush means comprising a single brush support having a first set of radially extending bristles extending along the length thereof and projecting through said bottom opening for engaging the floor, and a second set of bristles connected to an end of said brush support and at an angle thereto extending through said side opening for engaging a sidewall to be cleaned; said brush means including a shaft for rotating said brush support; and drive means connected with said shaft along the said axis of rotation for rotating said brush support.
Claim 2
Dependent Claim
166 words
A nozzle for use with a vacuum cleaning device, said nozzle being adapted to be detachably connected to a vacuum cleaning device through a suction line, characterized in that said nozzle comprises a housing having a bottom wall and a side wall, said bottom wall having a bottom opening and said side wall having a side opening through which dirt enters the housing when the vacuum cleaning device is operable; brush means in said housing, said brush means comprising a single brush support having a first set of radially extending bristles extending along the length thereof and projecting through said bottom opening for engaging the floor, and a second set of bristles connected to an end of said brush support and at an angle thereto extending through said side opening for engaging a sidewall to be cleaned; said brush means including a shaft for rotating said brush support; and drive means connected with said shaft along the said axis of rotation for rotating said brush support.
Claim 3
Dependent Claim
40 words
A nozzle as in claim 1, in which said side opening and said bottom opening are perpendicular to each other, said second set of bristles projecting through said side opening being positioned to engage the vertical surface of a plinth.
Claim 4
Dependent Claim
34 words
A nozzle as in claim 1, in which said housing includes sliding surfaces adjacent said bottom opening and said side opening whereby said nozzle is in sliding contact with the surfaces to be cleaned.
Claim 5
Dependent Claim
60 words
A nozzle as in claim 1, in which and said drive means comprises an air turbine affixed to said shaft and received within said housing; said housing defining an air flow path from said bottom and side openings, through said housing and the suction line, to the vacuum cleaning device; said air turbine being positioned in the air flow path.
Claim 6
Dependent Claim
23 words
A nozzle as in claim 1, in which said housing includes a coupling sleeve adapted to be detachably connected with the suction line.
Claim 7
Dependent Claim
17 words
A nozzle as in claim 5, in which said coupling sleeve is rotatable about its longitudinal axis.
Claim 8
Dependent Claim
27 words
A nozzle as in claim 6, in which the upper portion of said coupling sleeve extends at an acute angle with respect to the lower portion thereof.
Claim 9
Dependent Claim
40 words
A nozzle as in claim 6, in which said housing includes a first portion pivotable about an axis substantially parallel to the floor on which said nozzle is adapted to stand, said first portion rotatably receiving said coupling means therein.
Claim 10
Dependent Claim
34 words
A suction nozzle as in claim 1, in which said brush means includes a shaft rotatable about an axis extending approximately parallel to the floor surface on which said nozzle is adapted to stand.
References Cited (Backward Citations)
US2536902A
Cited
US2703904A
Cited
US2930069A
Cited
US3150394A
Cited
US4198727A
Cited
US4564972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-12 | 1992-12-12 | 1993-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-12 | 1996-12-12 | 1997-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-12 | 2000-12-12 | 2001-06-13 | $7700.00 | Window Closed / Lapsed |