US3671996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush adjustment device for vacuum cleaner attachment
Assignee: Individual
•
Filing: 1970-11-02
•
Granted: 1972-06-27
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Expires: 1990-11-02
Abstract
Abstract A device for adjusting the level of a rotary brush mounted inside the housing of a vacuum cleaner attachment including a driving member mounted for rotation in the housing at one end of the brush and a driven member also mounted for rotation in the housing at the other end of the brush. A stationary shaft is eccentrically connected at each end thereof to the driving and driven members for transmitting the rotary movement imparted by the driving member to the driven member so as to simultaneously vary the level of both ends of the stationary shaft. The brush is mounted for rotation of the stationary shaft and the level thereof is adjusted by the movement of the stationary shaft.
Inventors
- 👤 Paul Emile Gaudry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:50
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/0494
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
118 words
A device for adjusting the level of a rotary brush mounted inside the housing of a vacuum cleaner attachment comprising: a. A driving member mounted for rotation on said housing at one end of said member; b. A driven member mounted for rotation on said housing at the other end of said brush; c. A shaft eccentrically connected at each end thereof in fixed relation to both driving and driven members for transmitting rotary movement imparted by said driving member to said driven member so as to simultaneously vary the level of both ends of said shaft; d. means for mounting said brush for rotation on said shaft; and e. manually operable means for rotating said driving member.
Claim 2
Independent Claim
118 words
A device for adjusting the level of a rotary brush mounted inside the housing of a vacuum cleaner attachment comprising: a. A driving member mounted for rotation on said housing at one end of said member; b. A driven member mounted for rotation on said housing at the other end of said brush; c. A shaft eccentrically connected at each end thereof in fixed relation to both driving and driven members for transmitting rotary movement imparted by said driving member to said driven member so as to simultaneously vary the level of both ends of said shaft; d. means for mounting said brush for rotation on said shaft; and e. manually operable means for rotating said driving member.
Claim 3
Dependent Claim
25 words
A device as defined in claim 1, wherein said driving member includes a control lever for rotating said driving member a predetermined number of degrees.
Claim 4
Dependent Claim
30 words
A device as defined in claim 1, including means for indexing at least one of said members so as to provide a number of pre-set levels for said rotary brush.
Claim 5
Dependent Claim
38 words
A device as defined in claim 3, wherein said indexing means comprise a plurality of indexing cams located on at least one of said members and spring loaded means located on said housing and cooperating with said cams.
Claim 6
Dependent Claim
34 words
A device as defined in claim 4, wherein said spring loaded means comprise a spring located in a hole in said housing and a steel ball biased by said spring against said indexing cam.
Claim 7
Dependent Claim
48 words
A device as defined in claim 4, wherein said members are plates and wherein said housing includes slots having dimensions slightly greater than said plates for receiving said plates, and further comprising pins passing through said housing and said plates for rotatably mounting said plates within said slots.
Claim 8
Dependent Claim
30 words
A device as defined in claim 6, wherein said plates include stop means adapted to contact the edge of said slots for limiting the amount of rotation of said plates.
Claim 9
Dependent Claim
37 words
A device as defined in claim 1, wherein each of said members has an elongated slot therein and wherein said shaft has a flattened portion protruding through said elongated slot for coupling said shaft to said members.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |