Patent US4468835A successfully refreshed from Google Patents.
US4468835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air vibrated dust brush
Assignee: Individual
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Filing: 1982-12-20
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Granted: 1984-09-04
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Expires: 2002-12-20
Abstract
Abstract A ribbon of flexible fabric (e.g., nylon) is folded and riveted near the fold to form an attachment loop. The loop is then coupled on a centrally located support rod inside an air duct, the ribbon ends extending beyond the exit of the duct. When air is forced through the duct, the free ends oscillate rapidly to brush away particulates on a surface being cleaned. The support rod is a portion of a clip which is removably coupled to the duct. The duct is cylindrical and may comprise a common, commercially available vacuum cleaner tube.
Inventors
- 👤 William A. Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:57
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/045; B60S3/048; A; A47; A47L; A47L9/00; A47L9/02; A47L9/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
A fluid vibrated brush comprising: a duct for receiving a stream of forced fluid and including; an exit, and first and second ports upstream of said exit, a ribbon within said duct and folded to form first and second segments each said segment having an end extending beyond the exit of said duct, and a fold intermediate said first and second segments; securement means for coupling said first and second segments together proximate said fold to form an attachment loop; and a clip passing through said attachment loop and gripping said duct for suspending said ribbon within said duct.
Claim 2
Dependent Claim
99 words
A fluid vibrated brush comprising: a duct for receiving a stream of forced fluid and including; an exit, and first and second ports upstream of said exit, a ribbon within said duct and folded to form first and second segments each said segment having an end extending beyond the exit of said duct, and a fold intermediate said first and second segments; securement means for coupling said first and second segments together proximate said fold to form an attachment loop; and a clip passing through said attachment loop and gripping said duct for suspending said ribbon within said duct.
Claim 3
Dependent Claim
25 words
A fluid vibrated brush according to claim 1 wherein said duct is a cylindrical tube capable of being coupled to a source of compressed air.
Claim 4
Dependent Claim
90 words
A fluid vibrated brush comprising: a vacuum cleaner tube for receiving a stream of forced fluid and having an exit; a ribbon within said tube and folded to form first and second segments, each said segment having an end extending beyond the exit of said tube, and a fold intermediate said first and second segments; securement means for coupling said first and said second segments together to form an attachment loop; and a clip passing through said attachment loop for gripping said duct for suspending said ribbon within said duct.
Claim 5
Dependent Claim
90 words
A fluid vibrated brush comprising: a vacuum cleaner tube for receiving a stream of forced fluid and having an exit; a ribbon within said tube and folded to form first and second segments, each said segment having an end extending beyond the exit of said tube, and a fold intermediate said first and second segments; securement means for coupling said first and said second segments together to form an attachment loop; and a clip passing through said attachment loop for gripping said duct for suspending said ribbon within said duct.
Claim 6
Dependent Claim
81 words
A fluid vibrated brush comprising: p0 a cylindrical tube for receiving a stream of forced fluid and including: an exit, first and second ports upstream of said exit; a ribbon suspended within said tube and including first and second segments, each said segment having an end extending beyond the exit of said tube and another end passing through a respective one of said ports; and means for receiving said other ends of said segments to the outer surface of said tube.
Claim 7
Dependent Claim
81 words
A fluid vibrated brush comprising: p0 a cylindrical tube for receiving a stream of forced fluid and including: an exit, first and second ports upstream of said exit; a ribbon suspended within said tube and including first and second segments, each said segment having an end extending beyond the exit of said tube and another end passing through a respective one of said ports; and means for receiving said other ends of said segments to the outer surface of said tube.
Claim 8
Dependent Claim
15 words
A fluid vibrated brush according to claim 4 wherein said means for securing is tape.
Claim 9
Dependent Claim
67 words
A fluid vibrated brush comprising: a duct for receiving a stream of forced fluid and having an exit, said duct being in the form of a cylindrical tube having a diameter D; and at least one flexible ribbon segment suspended within said duct and having an end extending beyond said exit, said segment being supported within said duct at a distance from said exit of approximately 5D.
Claim 10
Dependent Claim
67 words
A fluid vibrated brush comprising: a duct for receiving a stream of forced fluid and having an exit, said duct being in the form of a cylindrical tube having a diameter D; and at least one flexible ribbon segment suspended within said duct and having an end extending beyond said exit, said segment being supported within said duct at a distance from said exit of approximately 5D.
Claim 11
Dependent Claim
25 words
A fluid vibrated brush according to claim 6 wherein said at least one ribbon segment extends beyond said exit a distance approximately equal to 3D.
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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |